Merge 90c90cda05 ("Merge tag 'xfs-5.15-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux") into android-mainline

Steps on the way to 5.15-rc1

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id0e9064c101f599601a6d864ce7ac2ed88083562

fs/xfs/kmem.c

@@ -29,67 +29,3 @@ kmem_alloc(size_t size, xfs_km_flags_t flags)
 		congestion_wait(BLK_RW_ASYNC, HZ/50);
 	} while (1);
 }
-
-
-/*
- * __vmalloc() will allocate data pages and auxiliary structures (e.g.
- * pagetables) with GFP_KERNEL, yet we may be under GFP_NOFS context here. Hence
- * we need to tell memory reclaim that we are in such a context via
- * PF_MEMALLOC_NOFS to prevent memory reclaim re-entering the filesystem here
- * and potentially deadlocking.
- */
-static void *
-__kmem_vmalloc(size_t size, xfs_km_flags_t flags)
-{
-	unsigned nofs_flag = 0;
-	void	*ptr;
-	gfp_t	lflags = kmem_flags_convert(flags);
-
-	if (flags & KM_NOFS)
-		nofs_flag = memalloc_nofs_save();
-
-	ptr = __vmalloc(size, lflags);
-
-	if (flags & KM_NOFS)
-		memalloc_nofs_restore(nofs_flag);
-
-	return ptr;
-}
-
-/*
- * Same as kmem_alloc_large, except we guarantee the buffer returned is aligned
- * to the @align_mask. We only guarantee alignment up to page size, we'll clamp
- * alignment at page size if it is larger. vmalloc always returns a PAGE_SIZE
- * aligned region.
- */
-void *
-kmem_alloc_io(size_t size, int align_mask, xfs_km_flags_t flags)
-{
-	void	*ptr;
-
-	trace_kmem_alloc_io(size, flags, _RET_IP_);
-
-	if (WARN_ON_ONCE(align_mask >= PAGE_SIZE))
-		align_mask = PAGE_SIZE - 1;
-
-	ptr = kmem_alloc(size, flags | KM_MAYFAIL);
-	if (ptr) {
-		if (!((uintptr_t)ptr & align_mask))
-			return ptr;
-		kfree(ptr);
-	}
-	return __kmem_vmalloc(size, flags);
-}
-
-void *
-kmem_alloc_large(size_t size, xfs_km_flags_t flags)
-{
-	void	*ptr;
-
-	trace_kmem_alloc_large(size, flags, _RET_IP_);
-
-	ptr = kmem_alloc(size, flags | KM_MAYFAIL);
-	if (ptr)
-		return ptr;
-	return __kmem_vmalloc(size, flags);
-}

fs/xfs/kmem.h

@@ -57,8 +57,6 @@ kmem_flags_convert(xfs_km_flags_t flags)
 }
 
 extern void *kmem_alloc(size_t, xfs_km_flags_t);
-extern void *kmem_alloc_io(size_t size, int align_mask, xfs_km_flags_t flags);
-extern void *kmem_alloc_large(size_t size, xfs_km_flags_t);
 static inline void  kmem_free(const void *ptr)
 {
 	kvfree(ptr);

fs/xfs/libxfs/xfs_ag.c

@@ -313,7 +313,6 @@ xfs_get_aghdr_buf(
 	if (error)
 		return error;
 
-	bp->b_bn = blkno;
 	bp->b_maps[0].bm_bn = blkno;
 	bp->b_ops = ops;
 
@@ -469,7 +468,7 @@ xfs_rmaproot_init(
 	rrec->rm_offset = 0;
 
 	/* account for refc btree root */
-	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+	if (xfs_has_reflink(mp)) {
 		rrec = XFS_RMAP_REC_ADDR(block, 5);
 		rrec->rm_startblock = cpu_to_be32(xfs_refc_block(mp));
 		rrec->rm_blockcount = cpu_to_be32(1);
@@ -528,7 +527,7 @@ xfs_agfblock_init(
 	agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp));
 	agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1);
 	agf->agf_levels[XFS_BTNUM_CNTi] = cpu_to_be32(1);
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
+	if (xfs_has_rmapbt(mp)) {
 		agf->agf_roots[XFS_BTNUM_RMAPi] =
 					cpu_to_be32(XFS_RMAP_BLOCK(mp));
 		agf->agf_levels[XFS_BTNUM_RMAPi] = cpu_to_be32(1);
@@ -541,9 +540,9 @@ xfs_agfblock_init(
 	tmpsize = id->agsize - mp->m_ag_prealloc_blocks;
 	agf->agf_freeblks = cpu_to_be32(tmpsize);
 	agf->agf_longest = cpu_to_be32(tmpsize);
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_has_crc(mp))
 		uuid_copy(&agf->agf_uuid, &mp->m_sb.sb_meta_uuid);
-	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+	if (xfs_has_reflink(mp)) {
 		agf->agf_refcount_root = cpu_to_be32(
 				xfs_refc_block(mp));
 		agf->agf_refcount_level = cpu_to_be32(1);
@@ -569,7 +568,7 @@ xfs_agflblock_init(
 	__be32			*agfl_bno;
 	int			bucket;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		agfl->agfl_magicnum = cpu_to_be32(XFS_AGFL_MAGIC);
 		agfl->agfl_seqno = cpu_to_be32(id->agno);
 		uuid_copy(&agfl->agfl_uuid, &mp->m_sb.sb_meta_uuid);
@@ -599,17 +598,17 @@ xfs_agiblock_init(
 	agi->agi_freecount = 0;
 	agi->agi_newino = cpu_to_be32(NULLAGINO);
 	agi->agi_dirino = cpu_to_be32(NULLAGINO);
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_has_crc(mp))
 		uuid_copy(&agi->agi_uuid, &mp->m_sb.sb_meta_uuid);
-	if (xfs_sb_version_hasfinobt(&mp->m_sb)) {
+	if (xfs_has_finobt(mp)) {
 		agi->agi_free_root = cpu_to_be32(XFS_FIBT_BLOCK(mp));
 		agi->agi_free_level = cpu_to_be32(1);
 	}
 	for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++)
 		agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
-	if (xfs_sb_version_hasinobtcounts(&mp->m_sb)) {
+	if (xfs_has_inobtcounts(mp)) {
 		agi->agi_iblocks = cpu_to_be32(1);
-		if (xfs_sb_version_hasfinobt(&mp->m_sb))
+		if (xfs_has_finobt(mp))
 			agi->agi_fblocks = cpu_to_be32(1);
 	}
 }
@@ -719,14 +718,14 @@ xfs_ag_init_headers(
 		.ops = &xfs_finobt_buf_ops,
 		.work = &xfs_btroot_init,
 		.type = XFS_BTNUM_FINO,
-		.need_init =  xfs_sb_version_hasfinobt(&mp->m_sb)
+		.need_init =  xfs_has_finobt(mp)
 	},
 	{ /* RMAP root block */
 		.daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_RMAP_BLOCK(mp)),
 		.numblks = BTOBB(mp->m_sb.sb_blocksize),
 		.ops = &xfs_rmapbt_buf_ops,
 		.work = &xfs_rmaproot_init,
-		.need_init = xfs_sb_version_hasrmapbt(&mp->m_sb)
+		.need_init = xfs_has_rmapbt(mp)
 	},
 	{ /* REFC root block */
 		.daddr = XFS_AGB_TO_DADDR(mp, id->agno, xfs_refc_block(mp)),
@@ -734,7 +733,7 @@ xfs_ag_init_headers(
 		.ops = &xfs_refcountbt_buf_ops,
 		.work = &xfs_btroot_init,
 		.type = XFS_BTNUM_REFC,
-		.need_init = xfs_sb_version_hasreflink(&mp->m_sb)
+		.need_init = xfs_has_reflink(mp)
 	},
 	{ /* NULL terminating block */
 		.daddr = XFS_BUF_DADDR_NULL,

fs/xfs/libxfs/xfs_alloc.c

@@ -51,7 +51,7 @@ xfs_agfl_size(
 {
 	unsigned int		size = mp->m_sb.sb_sectsize;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_has_crc(mp))
 		size -= sizeof(struct xfs_agfl);
 
 	return size / sizeof(xfs_agblock_t);
@@ -61,9 +61,9 @@ unsigned int
 xfs_refc_block(
 	struct xfs_mount	*mp)
 {
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (xfs_has_rmapbt(mp))
 		return XFS_RMAP_BLOCK(mp) + 1;
-	if (xfs_sb_version_hasfinobt(&mp->m_sb))
+	if (xfs_has_finobt(mp))
 		return XFS_FIBT_BLOCK(mp) + 1;
 	return XFS_IBT_BLOCK(mp) + 1;
 }
@@ -72,11 +72,11 @@ xfs_extlen_t
 xfs_prealloc_blocks(
 	struct xfs_mount	*mp)
 {
-	if (xfs_sb_version_hasreflink(&mp->m_sb))
+	if (xfs_has_reflink(mp))
 		return xfs_refc_block(mp) + 1;
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (xfs_has_rmapbt(mp))
 		return XFS_RMAP_BLOCK(mp) + 1;
-	if (xfs_sb_version_hasfinobt(&mp->m_sb))
+	if (xfs_has_finobt(mp))
 		return XFS_FIBT_BLOCK(mp) + 1;
 	return XFS_IBT_BLOCK(mp) + 1;
 }
@@ -126,11 +126,11 @@ xfs_alloc_ag_max_usable(
 	blocks = XFS_BB_TO_FSB(mp, XFS_FSS_TO_BB(mp, 4)); /* ag headers */
 	blocks += XFS_ALLOC_AGFL_RESERVE;
 	blocks += 3;			/* AGF, AGI btree root blocks */
-	if (xfs_sb_version_hasfinobt(&mp->m_sb))
+	if (xfs_has_finobt(mp))
 		blocks++;		/* finobt root block */
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (xfs_has_rmapbt(mp))
 		blocks++; 		/* rmap root block */
-	if (xfs_sb_version_hasreflink(&mp->m_sb))
+	if (xfs_has_reflink(mp))
 		blocks++;		/* refcount root block */
 
 	return mp->m_sb.sb_agblocks - blocks;
@@ -598,7 +598,7 @@ xfs_agfl_verify(
 	 * AGFL is what the AGF says is active. We can't get to the AGF, so we
 	 * can't verify just those entries are valid.
 	 */
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return NULL;
 
 	if (!xfs_verify_magic(bp, agfl->agfl_magicnum))
@@ -638,7 +638,7 @@ xfs_agfl_read_verify(
 	 * AGFL is what the AGF says is active. We can't get to the AGF, so we
 	 * can't verify just those entries are valid.
 	 */
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	if (!xfs_buf_verify_cksum(bp, XFS_AGFL_CRC_OFF))
@@ -659,7 +659,7 @@ xfs_agfl_write_verify(
 	xfs_failaddr_t		fa;
 
 	/* no verification of non-crc AGFLs */
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	fa = xfs_agfl_verify(bp);
@@ -2264,7 +2264,7 @@ xfs_alloc_min_freelist(
 	min_free += min_t(unsigned int, levels[XFS_BTNUM_CNTi] + 1,
 				       mp->m_ag_maxlevels);
 	/* space needed reverse mapping used space btree */
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (xfs_has_rmapbt(mp))
 		min_free += min_t(unsigned int, levels[XFS_BTNUM_RMAPi] + 1,
 						mp->m_rmap_maxlevels);
 
@@ -2373,7 +2373,7 @@ xfs_agfl_needs_reset(
 	int			active;
 
 	/* no agfl header on v4 supers */
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return false;
 
 	/*
@@ -2877,7 +2877,7 @@ xfs_agf_verify(
 	struct xfs_mount	*mp = bp->b_mount;
 	struct xfs_agf		*agf = bp->b_addr;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		if (!uuid_equal(&agf->agf_uuid, &mp->m_sb.sb_meta_uuid))
 			return __this_address;
 		if (!xfs_log_check_lsn(mp, be64_to_cpu(agf->agf_lsn)))
@@ -2907,12 +2907,12 @@ xfs_agf_verify(
 	    be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]) > mp->m_ag_maxlevels)
 		return __this_address;
 
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb) &&
+	if (xfs_has_rmapbt(mp) &&
 	    (be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) < 1 ||
 	     be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]) > mp->m_rmap_maxlevels))
 		return __this_address;
 
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb) &&
+	if (xfs_has_rmapbt(mp) &&
 	    be32_to_cpu(agf->agf_rmap_blocks) > be32_to_cpu(agf->agf_length))
 		return __this_address;
 
@@ -2925,16 +2925,16 @@ xfs_agf_verify(
 	if (bp->b_pag && be32_to_cpu(agf->agf_seqno) != bp->b_pag->pag_agno)
 		return __this_address;
 
-	if (xfs_sb_version_haslazysbcount(&mp->m_sb) &&
+	if (xfs_has_lazysbcount(mp) &&
 	    be32_to_cpu(agf->agf_btreeblks) > be32_to_cpu(agf->agf_length))
 		return __this_address;
 
-	if (xfs_sb_version_hasreflink(&mp->m_sb) &&
+	if (xfs_has_reflink(mp) &&
 	    be32_to_cpu(agf->agf_refcount_blocks) >
 	    be32_to_cpu(agf->agf_length))
 		return __this_address;
 
-	if (xfs_sb_version_hasreflink(&mp->m_sb) &&
+	if (xfs_has_reflink(mp) &&
 	    (be32_to_cpu(agf->agf_refcount_level) < 1 ||
 	     be32_to_cpu(agf->agf_refcount_level) > mp->m_refc_maxlevels))
 		return __this_address;
@@ -2950,7 +2950,7 @@ xfs_agf_read_verify(
 	struct xfs_mount *mp = bp->b_mount;
 	xfs_failaddr_t	fa;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb) &&
+	if (xfs_has_crc(mp) &&
 	    !xfs_buf_verify_cksum(bp, XFS_AGF_CRC_OFF))
 		xfs_verifier_error(bp, -EFSBADCRC, __this_address);
 	else {
@@ -2975,7 +2975,7 @@ xfs_agf_write_verify(
 		return;
 	}
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	if (bip)
@@ -3073,13 +3073,13 @@ xfs_alloc_read_agf(
 		 * counter only tracks non-root blocks.
 		 */
 		allocbt_blks = pag->pagf_btreeblks;
-		if (xfs_sb_version_hasrmapbt(&mp->m_sb))
+		if (xfs_has_rmapbt(mp))
 			allocbt_blks -= be32_to_cpu(agf->agf_rmap_blocks) - 1;
 		if (allocbt_blks > 0)
 			atomic64_add(allocbt_blks, &mp->m_allocbt_blks);
 	}
 #ifdef DEBUG
-	else if (!XFS_FORCED_SHUTDOWN(mp)) {
+	else if (!xfs_is_shutdown(mp)) {
 		ASSERT(pag->pagf_freeblks == be32_to_cpu(agf->agf_freeblks));
 		ASSERT(pag->pagf_btreeblks == be32_to_cpu(agf->agf_btreeblks));
 		ASSERT(pag->pagf_flcount == be32_to_cpu(agf->agf_flcount));
@@ -3166,7 +3166,7 @@ xfs_alloc_vextent(
 		 * the first a.g. fails.
 		 */
 		if ((args->datatype & XFS_ALLOC_INITIAL_USER_DATA) &&
-		    (mp->m_flags & XFS_MOUNT_32BITINODES)) {
+		    xfs_is_inode32(mp)) {
 			args->fsbno = XFS_AGB_TO_FSB(mp,
 					((mp->m_agfrotor / rotorstep) %
 					mp->m_sb.sb_agcount), 0);
@@ -3392,7 +3392,7 @@ struct xfs_alloc_query_range_info {
 STATIC int
 xfs_alloc_query_range_helper(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec		*rec,
+	const union xfs_btree_rec	*rec,
 	void				*priv)
 {
 	struct xfs_alloc_query_range_info	*query = priv;
@@ -3407,8 +3407,8 @@ xfs_alloc_query_range_helper(
 int
 xfs_alloc_query_range(
 	struct xfs_btree_cur			*cur,
-	struct xfs_alloc_rec_incore		*low_rec,
-	struct xfs_alloc_rec_incore		*high_rec,
+	const struct xfs_alloc_rec_incore	*low_rec,
+	const struct xfs_alloc_rec_incore	*high_rec,
 	xfs_alloc_query_range_fn		fn,
 	void					*priv)
 {

fs/xfs/libxfs/xfs_alloc.h

@@ -221,12 +221,12 @@ xfs_extlen_t xfs_prealloc_blocks(struct xfs_mount *mp);
 
 typedef int (*xfs_alloc_query_range_fn)(
 	struct xfs_btree_cur			*cur,
-	struct xfs_alloc_rec_incore	*rec,
+	const struct xfs_alloc_rec_incore	*rec,
 	void					*priv);
 
 int xfs_alloc_query_range(struct xfs_btree_cur *cur,
-		struct xfs_alloc_rec_incore *low_rec,
-		struct xfs_alloc_rec_incore *high_rec,
+		const struct xfs_alloc_rec_incore *low_rec,
+		const struct xfs_alloc_rec_incore *high_rec,
 		xfs_alloc_query_range_fn fn, void *priv);
 int xfs_alloc_query_all(struct xfs_btree_cur *cur, xfs_alloc_query_range_fn fn,
 		void *priv);
@@ -243,7 +243,7 @@ static inline __be32 *
 xfs_buf_to_agfl_bno(
 	struct xfs_buf		*bp)
 {
-	if (xfs_sb_version_hascrc(&bp->b_mount->m_sb))
+	if (xfs_has_crc(bp->b_mount))
 		return bp->b_addr + sizeof(struct xfs_agfl);
 	return bp->b_addr;
 }

fs/xfs/libxfs/xfs_alloc_btree.c

@@ -32,7 +32,7 @@ xfs_allocbt_dup_cursor(
 STATIC void
 xfs_allocbt_set_root(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*ptr,
+	const union xfs_btree_ptr	*ptr,
 	int				inc)
 {
 	struct xfs_buf		*agbp = cur->bc_ag.agbp;
@@ -51,7 +51,7 @@ xfs_allocbt_set_root(
 STATIC int
 xfs_allocbt_alloc_block(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*start,
+	const union xfs_btree_ptr	*start,
 	union xfs_btree_ptr		*new,
 	int				*stat)
 {
@@ -87,7 +87,7 @@ xfs_allocbt_free_block(
 	xfs_agblock_t		bno;
 	int			error;
 
-	bno = xfs_daddr_to_agbno(cur->bc_mp, XFS_BUF_ADDR(bp));
+	bno = xfs_daddr_to_agbno(cur->bc_mp, xfs_buf_daddr(bp));
 	error = xfs_alloc_put_freelist(cur->bc_tp, agbp, NULL, bno, 1);
 	if (error)
 		return error;
@@ -104,8 +104,8 @@ xfs_allocbt_free_block(
 STATIC void
 xfs_allocbt_update_lastrec(
 	struct xfs_btree_cur		*cur,
-	struct xfs_btree_block	*block,
-	union xfs_btree_rec	*rec,
+	const struct xfs_btree_block	*block,
+	const union xfs_btree_rec	*rec,
 	int				ptr,
 	int				reason)
 {
@@ -178,7 +178,7 @@ xfs_allocbt_get_maxrecs(
 STATIC void
 xfs_allocbt_init_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	key->alloc.ar_startblock = rec->alloc.ar_startblock;
 	key->alloc.ar_blockcount = rec->alloc.ar_blockcount;
@@ -187,7 +187,7 @@ xfs_allocbt_init_key_from_rec(
 STATIC void
 xfs_bnobt_init_high_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	__u32				x;
 
@@ -200,7 +200,7 @@ xfs_bnobt_init_high_key_from_rec(
 STATIC void
 xfs_cntbt_init_high_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	key->alloc.ar_blockcount = rec->alloc.ar_blockcount;
 	key->alloc.ar_startblock = 0;
@@ -230,10 +230,10 @@ xfs_allocbt_init_ptr_from_cur(
 STATIC int64_t
 xfs_bnobt_key_diff(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*key)
+	const union xfs_btree_key	*key)
 {
-	xfs_alloc_rec_incore_t	*rec = &cur->bc_rec.a;
-	xfs_alloc_key_t		*kp = &key->alloc;
+	struct xfs_alloc_rec_incore	*rec = &cur->bc_rec.a;
+	const struct xfs_alloc_rec	*kp = &key->alloc;
 
 	return (int64_t)be32_to_cpu(kp->ar_startblock) - rec->ar_startblock;
 }
@@ -241,10 +241,10 @@ xfs_bnobt_key_diff(
 STATIC int64_t
 xfs_cntbt_key_diff(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*key)
+	const union xfs_btree_key	*key)
 {
-	xfs_alloc_rec_incore_t	*rec = &cur->bc_rec.a;
-	xfs_alloc_key_t		*kp = &key->alloc;
+	struct xfs_alloc_rec_incore	*rec = &cur->bc_rec.a;
+	const struct xfs_alloc_rec	*kp = &key->alloc;
 	int64_t				diff;
 
 	diff = (int64_t)be32_to_cpu(kp->ar_blockcount) - rec->ar_blockcount;
@@ -257,8 +257,8 @@ xfs_cntbt_key_diff(
 STATIC int64_t
 xfs_bnobt_diff_two_keys(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	return (int64_t)be32_to_cpu(k1->alloc.ar_startblock) -
 			  be32_to_cpu(k2->alloc.ar_startblock);
@@ -267,8 +267,8 @@ xfs_bnobt_diff_two_keys(
 STATIC int64_t
 xfs_cntbt_diff_two_keys(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	int64_t				diff;
 
@@ -295,7 +295,7 @@ xfs_allocbt_verify(
 	if (!xfs_verify_magic(bp, block->bb_magic))
 		return __this_address;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		fa = xfs_btree_sblock_v5hdr_verify(bp);
 		if (fa)
 			return fa;
@@ -377,8 +377,8 @@ const struct xfs_buf_ops xfs_cntbt_buf_ops = {
 STATIC int
 xfs_bnobt_keys_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	return be32_to_cpu(k1->alloc.ar_startblock) <
 	       be32_to_cpu(k2->alloc.ar_startblock);
@@ -387,8 +387,8 @@ xfs_bnobt_keys_inorder(
 STATIC int
 xfs_bnobt_recs_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec	*r1,
-	union xfs_btree_rec	*r2)
+	const union xfs_btree_rec	*r1,
+	const union xfs_btree_rec	*r2)
 {
 	return be32_to_cpu(r1->alloc.ar_startblock) +
 		be32_to_cpu(r1->alloc.ar_blockcount) <=
@@ -398,8 +398,8 @@ xfs_bnobt_recs_inorder(
 STATIC int
 xfs_cntbt_keys_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	return be32_to_cpu(k1->alloc.ar_blockcount) <
 		be32_to_cpu(k2->alloc.ar_blockcount) ||
@@ -411,8 +411,8 @@ xfs_cntbt_keys_inorder(
 STATIC int
 xfs_cntbt_recs_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec	*r1,
-	union xfs_btree_rec	*r2)
+	const union xfs_btree_rec	*r1,
+	const union xfs_btree_rec	*r2)
 {
 	return be32_to_cpu(r1->alloc.ar_blockcount) <
 		be32_to_cpu(r2->alloc.ar_blockcount) ||
@@ -498,7 +498,7 @@ xfs_allocbt_init_common(
 	atomic_inc(&pag->pag_ref);
 	cur->bc_ag.pag = pag;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_has_crc(mp))
 		cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
 
 	return cur;

fs/xfs/libxfs/xfs_alloc_btree.h

@@ -20,7 +20,7 @@ struct xbtree_afakeroot;
  * Btree block header size depends on a superblock flag.
  */
 #define XFS_ALLOC_BLOCK_LEN(mp) \
-	(xfs_sb_version_hascrc(&((mp)->m_sb)) ? \
+	(xfs_has_crc(((mp))) ? \
 		XFS_BTREE_SBLOCK_CRC_LEN : XFS_BTREE_SBLOCK_LEN)
 
 /*

fs/xfs/libxfs/xfs_attr.c

@@ -146,7 +146,7 @@ xfs_attr_get(
 
 	XFS_STATS_INC(args->dp->i_mount, xs_attr_get);
 
-	if (XFS_FORCED_SHUTDOWN(args->dp->i_mount))
+	if (xfs_is_shutdown(args->dp->i_mount))
 		return -EIO;
 
 	args->geo = args->dp->i_mount->m_attr_geo;
@@ -224,7 +224,7 @@ xfs_attr_try_sf_addname(
 	if (!error && !(args->op_flags & XFS_DA_OP_NOTIME))
 		xfs_trans_ichgtime(args->trans, dp, XFS_ICHGTIME_CHG);
 
-	if (dp->i_mount->m_flags & XFS_MOUNT_WSYNC)
+	if (xfs_has_wsync(dp->i_mount))
 		xfs_trans_set_sync(args->trans);
 
 	return error;
@@ -335,6 +335,7 @@ xfs_attr_sf_addname(
 	 * the attr fork to leaf format and will restart with the leaf
 	 * add.
 	 */
+	trace_xfs_attr_sf_addname_return(XFS_DAS_UNINIT, args->dp);
 	dac->flags |= XFS_DAC_DEFER_FINISH;
 	return -EAGAIN;
 }
@@ -394,6 +395,8 @@ xfs_attr_set_iter(
 				 * handling code below
 				 */
 				dac->flags |= XFS_DAC_DEFER_FINISH;
+				trace_xfs_attr_set_iter_return(
+					dac->dela_state, args->dp);
 				return -EAGAIN;
 			} else if (error) {
 				return error;
@@ -411,6 +414,7 @@ xfs_attr_set_iter(
 
 			dac->dela_state = XFS_DAS_FOUND_NBLK;
 		}
+		trace_xfs_attr_set_iter_return(dac->dela_state,	args->dp);
 		return -EAGAIN;
 	case XFS_DAS_FOUND_LBLK:
 		/*
@@ -438,6 +442,8 @@ xfs_attr_set_iter(
 			error = xfs_attr_rmtval_set_blk(dac);
 			if (error)
 				return error;
+			trace_xfs_attr_set_iter_return(dac->dela_state,
+						       args->dp);
 			return -EAGAIN;
 		}
 
@@ -472,6 +478,7 @@ xfs_attr_set_iter(
 		 * series.
 		 */
 		dac->dela_state = XFS_DAS_FLIP_LFLAG;
+		trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);
 		return -EAGAIN;
 	case XFS_DAS_FLIP_LFLAG:
 		/*
@@ -488,11 +495,15 @@ xfs_attr_set_iter(
 		/* Set state in case xfs_attr_rmtval_remove returns -EAGAIN */
 		dac->dela_state = XFS_DAS_RM_LBLK;
 		if (args->rmtblkno) {
-			error = __xfs_attr_rmtval_remove(dac);
+			error = xfs_attr_rmtval_remove(dac);
+			if (error == -EAGAIN)
+				trace_xfs_attr_set_iter_return(
+					dac->dela_state, args->dp);
 			if (error)
 				return error;
 
 			dac->dela_state = XFS_DAS_RD_LEAF;
+			trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);
 			return -EAGAIN;
 		}
 
@@ -542,6 +553,8 @@ xfs_attr_set_iter(
 				error = xfs_attr_rmtval_set_blk(dac);
 				if (error)
 					return error;
+				trace_xfs_attr_set_iter_return(
+					dac->dela_state, args->dp);
 				return -EAGAIN;
 			}
 
@@ -577,6 +590,7 @@ xfs_attr_set_iter(
 		 * series
 		 */
 		dac->dela_state = XFS_DAS_FLIP_NFLAG;
+		trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);
 		return -EAGAIN;
 
 	case XFS_DAS_FLIP_NFLAG:
@@ -595,11 +609,16 @@ xfs_attr_set_iter(
 		/* Set state in case xfs_attr_rmtval_remove returns -EAGAIN */
 		dac->dela_state = XFS_DAS_RM_NBLK;
 		if (args->rmtblkno) {
-			error = __xfs_attr_rmtval_remove(dac);
+			error = xfs_attr_rmtval_remove(dac);
+			if (error == -EAGAIN)
+				trace_xfs_attr_set_iter_return(
+					dac->dela_state, args->dp);
+
 			if (error)
 				return error;
 
 			dac->dela_state = XFS_DAS_CLR_FLAG;
+			trace_xfs_attr_set_iter_return(dac->dela_state, args->dp);
 			return -EAGAIN;
 		}
 
@@ -623,8 +642,8 @@ out:
 /*
  * Return EEXIST if attr is found, or ENOATTR if not
  */
-int
-xfs_has_attr(
+static int
+xfs_attr_lookup(
 	struct xfs_da_args	*args)
 {
 	struct xfs_inode	*dp = args->dp;
@@ -691,7 +710,7 @@ xfs_attr_set(
 	int			rmt_blks = 0;
 	unsigned int		total;
 
-	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
+	if (xfs_is_shutdown(dp->i_mount))
 		return -EIO;
 
 	error = xfs_qm_dqattach(dp);
@@ -761,8 +780,8 @@ xfs_attr_set(
 			goto out_trans_cancel;
 	}
 
+	error = xfs_attr_lookup(args);
 	if (args->value) {
-		error = xfs_has_attr(args);
 		if (error == -EEXIST && (args->attr_flags & XATTR_CREATE))
 			goto out_trans_cancel;
 		if (error == -ENOATTR && (args->attr_flags & XATTR_REPLACE))
@@ -777,7 +796,6 @@ xfs_attr_set(
 		if (!args->trans)
 			goto out_unlock;
 	} else {
-		error = xfs_has_attr(args);
 		if (error != -EEXIST)
 			goto out_trans_cancel;
 
@@ -790,7 +808,7 @@ xfs_attr_set(
 	 * If this is a synchronous mount, make sure that the
 	 * transaction goes to disk before returning to the user.
 	 */
-	if (mp->m_flags & XFS_MOUNT_WSYNC)
+	if (xfs_has_wsync(mp))
 		xfs_trans_set_sync(args->trans);
 
 	if (!(args->op_flags & XFS_DA_OP_NOTIME))
@@ -1176,6 +1194,8 @@ xfs_attr_node_addname(
 			 * this point.
 			 */
 			dac->flags |= XFS_DAC_DEFER_FINISH;
+			trace_xfs_attr_node_addname_return(
+					dac->dela_state, args->dp);
 			return -EAGAIN;
 		}
 
@@ -1421,11 +1441,14 @@ xfs_attr_remove_iter(
 			 * May return -EAGAIN. Roll and repeat until all remote
 			 * blocks are removed.
 			 */
-			error = __xfs_attr_rmtval_remove(dac);
-			if (error == -EAGAIN)
+			error = xfs_attr_rmtval_remove(dac);
+			if (error == -EAGAIN) {
+				trace_xfs_attr_remove_iter_return(
+						dac->dela_state, args->dp);
 				return error;
-			else if (error)
+			} else if (error) {
 				goto out;
+			}
 
 			/*
 			 * Refill the state structure with buffers (the prior
@@ -1438,6 +1461,7 @@ xfs_attr_remove_iter(
 				goto out;
 			dac->dela_state = XFS_DAS_RM_NAME;
 			dac->flags |= XFS_DAC_DEFER_FINISH;
+			trace_xfs_attr_remove_iter_return(dac->dela_state, args->dp);
 			return -EAGAIN;
 		}
 
@@ -1466,6 +1490,8 @@ xfs_attr_remove_iter(
 
 			dac->flags |= XFS_DAC_DEFER_FINISH;
 			dac->dela_state = XFS_DAS_RM_SHRINK;
+			trace_xfs_attr_remove_iter_return(
+					dac->dela_state, args->dp);
 			return -EAGAIN;
 		}
 
@@ -1514,7 +1540,7 @@ xfs_attr_fillstate(xfs_da_state_t *state)
 	ASSERT((path->active >= 0) && (path->active < XFS_DA_NODE_MAXDEPTH));
 	for (blk = path->blk, level = 0; level < path->active; blk++, level++) {
 		if (blk->bp) {
-			blk->disk_blkno = XFS_BUF_ADDR(blk->bp);
+			blk->disk_blkno = xfs_buf_daddr(blk->bp);
 			blk->bp = NULL;
 		} else {
 			blk->disk_blkno = 0;
@@ -1529,7 +1555,7 @@ xfs_attr_fillstate(xfs_da_state_t *state)
 	ASSERT((path->active >= 0) && (path->active < XFS_DA_NODE_MAXDEPTH));
 	for (blk = path->blk, level = 0; level < path->active; blk++, level++) {
 		if (blk->bp) {
-			blk->disk_blkno = XFS_BUF_ADDR(blk->bp);
+			blk->disk_blkno = xfs_buf_daddr(blk->bp);
 			blk->bp = NULL;
 		} else {
 			blk->disk_blkno = 0;

fs/xfs/libxfs/xfs_attr.h

@@ -490,7 +490,6 @@ int xfs_attr_get_ilocked(struct xfs_da_args *args);
 int xfs_attr_get(struct xfs_da_args *args);
 int xfs_attr_set(struct xfs_da_args *args);
 int xfs_attr_set_args(struct xfs_da_args *args);
-int xfs_has_attr(struct xfs_da_args *args);
 int xfs_attr_remove_args(struct xfs_da_args *args);
 int xfs_attr_remove_iter(struct xfs_delattr_context *dac);
 bool xfs_attr_namecheck(const void *name, size_t length);

fs/xfs/libxfs/xfs_attr_leaf.c

@@ -384,7 +384,7 @@ xfs_attr3_leaf_write_verify(
 		return;
 	}
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	if (bip)
@@ -406,7 +406,7 @@ xfs_attr3_leaf_read_verify(
 	struct xfs_mount	*mp = bp->b_mount;
 	xfs_failaddr_t		fa;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb) &&
+	if (xfs_has_crc(mp) &&
 	     !xfs_buf_verify_cksum(bp, XFS_ATTR3_LEAF_CRC_OFF))
 		xfs_verifier_error(bp, -EFSBADCRC, __this_address);
 	else {
@@ -489,7 +489,7 @@ xfs_attr_copy_value(
 	}
 
 	if (!args->value) {
-		args->value = kmem_alloc_large(valuelen, KM_NOLOCKDEP);
+		args->value = kvmalloc(valuelen, GFP_KERNEL | __GFP_NOLOCKDEP);
 		if (!args->value)
 			return -ENOMEM;
 	}
@@ -568,7 +568,7 @@ xfs_attr_shortform_bytesfit(
 	 * literal area, but for the old format we are done if there is no
 	 * space in the fixed attribute fork.
 	 */
-	if (!(mp->m_flags & XFS_MOUNT_ATTR2))
+	if (!xfs_has_attr2(mp))
 		return 0;
 
 	dsize = dp->i_df.if_bytes;
@@ -621,21 +621,27 @@ xfs_attr_shortform_bytesfit(
 }
 
 /*
- * Switch on the ATTR2 superblock bit (implies also FEATURES2)
+ * Switch on the ATTR2 superblock bit (implies also FEATURES2) unless:
+ * - noattr2 mount option is set,
+ * - on-disk version bit says it is already set, or
+ * - the attr2 mount option is not set to enable automatic upgrade from attr1.
  */
 STATIC void
-xfs_sbversion_add_attr2(xfs_mount_t *mp, xfs_trans_t *tp)
+xfs_sbversion_add_attr2(
+	struct xfs_mount	*mp,
+	struct xfs_trans	*tp)
 {
-	if ((mp->m_flags & XFS_MOUNT_ATTR2) &&
-	    !(xfs_sb_version_hasattr2(&mp->m_sb))) {
+	if (xfs_has_noattr2(mp))
+		return;
+	if (mp->m_sb.sb_features2 & XFS_SB_VERSION2_ATTR2BIT)
+		return;
+	if (!xfs_has_attr2(mp))
+		return;
+
 	spin_lock(&mp->m_sb_lock);
-		if (!xfs_sb_version_hasattr2(&mp->m_sb)) {
-			xfs_sb_version_addattr2(&mp->m_sb);
+	xfs_add_attr2(mp);
 	spin_unlock(&mp->m_sb_lock);
 	xfs_log_sb(tp);
-		} else
-			spin_unlock(&mp->m_sb_lock);
-	}
 }
 
 /*
@@ -810,8 +816,7 @@ xfs_attr_sf_removename(
 	 * Fix up the start offset of the attribute fork
 	 */
 	totsize -= size;
-	if (totsize == sizeof(xfs_attr_sf_hdr_t) &&
-	    (mp->m_flags & XFS_MOUNT_ATTR2) &&
+	if (totsize == sizeof(xfs_attr_sf_hdr_t) && xfs_has_attr2(mp) &&
 	    (dp->i_df.if_format != XFS_DINODE_FMT_BTREE) &&
 	    !(args->op_flags & XFS_DA_OP_ADDNAME)) {
 		xfs_attr_fork_remove(dp, args->trans);
@@ -821,7 +826,7 @@ xfs_attr_sf_removename(
 		ASSERT(dp->i_forkoff);
 		ASSERT(totsize > sizeof(xfs_attr_sf_hdr_t) ||
 				(args->op_flags & XFS_DA_OP_ADDNAME) ||
-				!(mp->m_flags & XFS_MOUNT_ATTR2) ||
+				!xfs_has_attr2(mp) ||
 				dp->i_df.if_format == XFS_DINODE_FMT_BTREE);
 		xfs_trans_log_inode(args->trans, dp,
 					XFS_ILOG_CORE | XFS_ILOG_ADATA);
@@ -997,7 +1002,7 @@ xfs_attr_shortform_allfit(
 		bytes += xfs_attr_sf_entsize_byname(name_loc->namelen,
 					be16_to_cpu(name_loc->valuelen));
 	}
-	if ((dp->i_mount->m_flags & XFS_MOUNT_ATTR2) &&
+	if (xfs_has_attr2(dp->i_mount) &&
 	    (dp->i_df.if_format != XFS_DINODE_FMT_BTREE) &&
 	    (bytes == sizeof(struct xfs_attr_sf_hdr)))
 		return -1;
@@ -1122,7 +1127,7 @@ xfs_attr3_leaf_to_shortform(
 		goto out;
 
 	if (forkoff == -1) {
-		ASSERT(dp->i_mount->m_flags & XFS_MOUNT_ATTR2);
+		ASSERT(xfs_has_attr2(dp->i_mount));
 		ASSERT(dp->i_df.if_format != XFS_DINODE_FMT_BTREE);
 		xfs_attr_fork_remove(dp, args->trans);
 		goto out;
@@ -1199,9 +1204,9 @@ xfs_attr3_leaf_to_node(
 	xfs_trans_buf_set_type(args->trans, bp2, XFS_BLFT_ATTR_LEAF_BUF);
 	bp2->b_ops = bp1->b_ops;
 	memcpy(bp2->b_addr, bp1->b_addr, args->geo->blksize);
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_da3_blkinfo *hdr3 = bp2->b_addr;
-		hdr3->blkno = cpu_to_be64(bp2->b_bn);
+		hdr3->blkno = cpu_to_be64(xfs_buf_daddr(bp2));
 	}
 	xfs_trans_log_buf(args->trans, bp2, 0, args->geo->blksize - 1);
 
@@ -1264,12 +1269,12 @@ xfs_attr3_leaf_create(
 	memset(&ichdr, 0, sizeof(ichdr));
 	ichdr.firstused = args->geo->blksize;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_da3_blkinfo *hdr3 = bp->b_addr;
 
 		ichdr.magic = XFS_ATTR3_LEAF_MAGIC;
 
-		hdr3->blkno = cpu_to_be64(bp->b_bn);
+		hdr3->blkno = cpu_to_be64(xfs_buf_daddr(bp));
 		hdr3->owner = cpu_to_be64(dp->i_ino);
 		uuid_copy(&hdr3->uuid, &mp->m_sb.sb_meta_uuid);
 

fs/xfs/libxfs/xfs_attr_remote.c

@@ -51,7 +51,7 @@ xfs_attr3_rmt_blocks(
 	struct xfs_mount *mp,
 	int		attrlen)
 {
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		int buflen = XFS_ATTR3_RMT_BUF_SPACE(mp, mp->m_sb.sb_blocksize);
 		return (attrlen + buflen - 1) / buflen;
 	}
@@ -126,11 +126,11 @@ __xfs_attr3_rmt_read_verify(
 	int		blksize = mp->m_attr_geo->blksize;
 
 	/* no verification of non-crc buffers */
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return 0;
 
 	ptr = bp->b_addr;
-	bno = bp->b_bn;
+	bno = xfs_buf_daddr(bp);
 	len = BBTOB(bp->b_length);
 	ASSERT(len >= blksize);
 
@@ -191,11 +191,11 @@ xfs_attr3_rmt_write_verify(
 	xfs_daddr_t	bno;
 
 	/* no verification of non-crc buffers */
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	ptr = bp->b_addr;
-	bno = bp->b_bn;
+	bno = xfs_buf_daddr(bp);
 	len = BBTOB(bp->b_length);
 	ASSERT(len >= blksize);
 
@@ -246,7 +246,7 @@ xfs_attr3_rmt_hdr_set(
 {
 	struct xfs_attr3_rmt_hdr *rmt = ptr;
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return 0;
 
 	rmt->rm_magic = cpu_to_be32(XFS_ATTR3_RMT_MAGIC);
@@ -284,7 +284,7 @@ xfs_attr_rmtval_copyout(
 	uint8_t		**dst)
 {
 	char		*src = bp->b_addr;
-	xfs_daddr_t	bno = bp->b_bn;
+	xfs_daddr_t	bno = xfs_buf_daddr(bp);
 	int		len = BBTOB(bp->b_length);
 	int		blksize = mp->m_attr_geo->blksize;
 
@@ -296,7 +296,7 @@ xfs_attr_rmtval_copyout(
 
 		byte_cnt = min(*valuelen, byte_cnt);
 
-		if (xfs_sb_version_hascrc(&mp->m_sb)) {
+		if (xfs_has_crc(mp)) {
 			if (xfs_attr3_rmt_hdr_ok(src, ino, *offset,
 						  byte_cnt, bno)) {
 				xfs_alert(mp,
@@ -332,7 +332,7 @@ xfs_attr_rmtval_copyin(
 	uint8_t		**src)
 {
 	char		*dst = bp->b_addr;
-	xfs_daddr_t	bno = bp->b_bn;
+	xfs_daddr_t	bno = xfs_buf_daddr(bp);
 	int		len = BBTOB(bp->b_length);
 	int		blksize = mp->m_attr_geo->blksize;
 
@@ -672,7 +672,7 @@ xfs_attr_rmtval_invalidate(
  * routine until it returns something other than -EAGAIN.
  */
 int
-__xfs_attr_rmtval_remove(
+xfs_attr_rmtval_remove(
 	struct xfs_delattr_context	*dac)
 {
 	struct xfs_da_args		*args = dac->da_args;
@@ -696,6 +696,7 @@ __xfs_attr_rmtval_remove(
 	 */
 	if (!done) {
 		dac->flags |= XFS_DAC_DEFER_FINISH;
+		trace_xfs_attr_rmtval_remove_return(dac->dela_state, args->dp);
 		return -EAGAIN;
 	}
 

fs/xfs/libxfs/xfs_attr_remote.h

@@ -12,7 +12,7 @@ int xfs_attr_rmtval_get(struct xfs_da_args *args);
 int xfs_attr_rmtval_stale(struct xfs_inode *ip, struct xfs_bmbt_irec *map,
 		xfs_buf_flags_t incore_flags);
 int xfs_attr_rmtval_invalidate(struct xfs_da_args *args);
-int __xfs_attr_rmtval_remove(struct xfs_delattr_context *dac);
+int xfs_attr_rmtval_remove(struct xfs_delattr_context *dac);
 int xfs_attr_rmt_find_hole(struct xfs_da_args *args);
 int xfs_attr_rmtval_set_value(struct xfs_da_args *args);
 int xfs_attr_rmtval_set_blk(struct xfs_delattr_context *dac);

fs/xfs/libxfs/xfs_bmap.c

@@ -242,7 +242,7 @@ xfs_bmap_get_bp(
 	for (i = 0; i < XFS_BTREE_MAXLEVELS; i++) {
 		if (!cur->bc_bufs[i])
 			break;
-		if (XFS_BUF_ADDR(cur->bc_bufs[i]) == bno)
+		if (xfs_buf_daddr(cur->bc_bufs[i]) == bno)
 			return cur->bc_bufs[i];
 	}
 
@@ -251,7 +251,7 @@ xfs_bmap_get_bp(
 		struct xfs_buf_log_item	*bip = (struct xfs_buf_log_item *)lip;
 
 		if (bip->bli_item.li_type == XFS_LI_BUF &&
-		    XFS_BUF_ADDR(bip->bli_buf) == bno)
+		    xfs_buf_daddr(bip->bli_buf) == bno)
 			return bip->bli_buf;
 	}
 
@@ -739,7 +739,7 @@ xfs_bmap_extents_to_btree(
 	 */
 	abp->b_ops = &xfs_bmbt_buf_ops;
 	ablock = XFS_BUF_TO_BLOCK(abp);
-	xfs_btree_init_block_int(mp, ablock, abp->b_bn,
+	xfs_btree_init_block_int(mp, ablock, xfs_buf_daddr(abp),
 				XFS_BTNUM_BMAP, 0, 0, ip->i_ino,
 				XFS_BTREE_LONG_PTRS);
 
@@ -1047,7 +1047,7 @@ xfs_bmap_set_attrforkoff(
 		ip->i_forkoff = xfs_attr_shortform_bytesfit(ip, size);
 		if (!ip->i_forkoff)
 			ip->i_forkoff = default_size;
-		else if ((ip->i_mount->m_flags & XFS_MOUNT_ATTR2) && version)
+		else if (xfs_has_attr2(ip->i_mount) && version)
 			*version = 2;
 		break;
 	default:
@@ -1115,17 +1115,17 @@ xfs_bmap_add_attrfork(
 		xfs_trans_log_inode(tp, ip, logflags);
 	if (error)
 		goto trans_cancel;
-	if (!xfs_sb_version_hasattr(&mp->m_sb) ||
-	   (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) {
+	if (!xfs_has_attr(mp) ||
+	   (!xfs_has_attr2(mp) && version == 2)) {
 		bool log_sb = false;
 
 		spin_lock(&mp->m_sb_lock);
-		if (!xfs_sb_version_hasattr(&mp->m_sb)) {
-			xfs_sb_version_addattr(&mp->m_sb);
+		if (!xfs_has_attr(mp)) {
+			xfs_add_attr(mp);
 			log_sb = true;
 		}
-		if (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2) {
-			xfs_sb_version_addattr2(&mp->m_sb);
+		if (!xfs_has_attr2(mp) && version == 2) {
+			xfs_add_attr2(mp);
 			log_sb = true;
 		}
 		spin_unlock(&mp->m_sb_lock);
@@ -3422,7 +3422,7 @@ xfs_bmap_compute_alignments(
 	int			stripe_align = 0;
 
 	/* stripe alignment for allocation is determined by mount parameters */
-	if (mp->m_swidth && (mp->m_flags & XFS_MOUNT_SWALLOC))
+	if (mp->m_swidth && xfs_has_swalloc(mp))
 		stripe_align = mp->m_swidth;
 	else if (mp->m_dalign)
 		stripe_align = mp->m_dalign;
@@ -3938,7 +3938,7 @@ xfs_bmapi_read(
 	    XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BMAPIFORMAT))
 		return -EFSCORRUPTED;
 
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		return -EIO;
 
 	XFS_STATS_INC(mp, xs_blk_mapr);
@@ -4420,7 +4420,7 @@ xfs_bmapi_write(
 		return -EFSCORRUPTED;
 	}
 
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		return -EIO;
 
 	XFS_STATS_INC(mp, xs_blk_mapw);
@@ -4703,7 +4703,7 @@ xfs_bmapi_remap(
 		return -EFSCORRUPTED;
 	}
 
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		return -EIO;
 
 	error = xfs_iread_extents(tp, ip, whichfork);
@@ -5361,7 +5361,7 @@ __xfs_bunmapi(
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 	if (XFS_IS_CORRUPT(mp, !xfs_ifork_has_extents(ifp)))
 		return -EFSCORRUPTED;
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		return -EIO;
 
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
@@ -5852,7 +5852,7 @@ xfs_bmap_collapse_extents(
 		return -EFSCORRUPTED;
 	}
 
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		return -EIO;
 
 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL));
@@ -5930,7 +5930,7 @@ xfs_bmap_can_insert_extents(
 
 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
 
-	if (XFS_FORCED_SHUTDOWN(ip->i_mount))
+	if (xfs_is_shutdown(ip->i_mount))
 		return -EIO;
 
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
@@ -5967,7 +5967,7 @@ xfs_bmap_insert_extents(
 		return -EFSCORRUPTED;
 	}
 
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		return -EIO;
 
 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL));
@@ -6070,7 +6070,7 @@ xfs_bmap_split_extent(
 		return -EFSCORRUPTED;
 	}
 
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		return -EIO;
 
 	/* Read in all the extents */

fs/xfs/libxfs/xfs_bmap_btree.c

@@ -58,7 +58,7 @@ xfs_bmdr_to_bmbt(
 
 void
 xfs_bmbt_disk_get_all(
-	struct xfs_bmbt_rec	*rec,
+	const struct xfs_bmbt_rec *rec,
 	struct xfs_bmbt_irec	*irec)
 {
 	uint64_t		l0 = get_unaligned_be64(&rec->l0);
@@ -78,7 +78,7 @@ xfs_bmbt_disk_get_all(
  */
 xfs_filblks_t
 xfs_bmbt_disk_get_blockcount(
-	xfs_bmbt_rec_t	*r)
+	const struct xfs_bmbt_rec	*r)
 {
 	return (xfs_filblks_t)(be64_to_cpu(r->l1) & xfs_mask64lo(21));
 }
@@ -88,7 +88,7 @@ xfs_bmbt_disk_get_blockcount(
  */
 xfs_fileoff_t
 xfs_bmbt_disk_get_startoff(
-	xfs_bmbt_rec_t	*r)
+	const struct xfs_bmbt_rec	*r)
 {
 	return ((xfs_fileoff_t)be64_to_cpu(r->l0) &
 		 xfs_mask64lo(64 - BMBT_EXNTFLAG_BITLEN)) >> 9;
@@ -136,7 +136,7 @@ xfs_bmbt_to_bmdr(
 	xfs_bmbt_key_t		*tkp;
 	__be64			*tpp;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		ASSERT(rblock->bb_magic == cpu_to_be32(XFS_BMAP_CRC_MAGIC));
 		ASSERT(uuid_equal(&rblock->bb_u.l.bb_uuid,
 		       &mp->m_sb.sb_meta_uuid));
@@ -194,7 +194,7 @@ xfs_bmbt_update_cursor(
 STATIC int
 xfs_bmbt_alloc_block(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*start,
+	const union xfs_btree_ptr	*start,
 	union xfs_btree_ptr		*new,
 	int				*stat)
 {
@@ -282,7 +282,7 @@ xfs_bmbt_free_block(
 	struct xfs_mount	*mp = cur->bc_mp;
 	struct xfs_inode	*ip = cur->bc_ino.ip;
 	struct xfs_trans	*tp = cur->bc_tp;
-	xfs_fsblock_t		fsbno = XFS_DADDR_TO_FSB(mp, XFS_BUF_ADDR(bp));
+	xfs_fsblock_t		fsbno = XFS_DADDR_TO_FSB(mp, xfs_buf_daddr(bp));
 	struct xfs_owner_info	oinfo;
 
 	xfs_rmap_ino_bmbt_owner(&oinfo, ip->i_ino, cur->bc_ino.whichfork);
@@ -353,7 +353,7 @@ xfs_bmbt_get_dmaxrecs(
 STATIC void
 xfs_bmbt_init_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	key->bmbt.br_startoff =
 		cpu_to_be64(xfs_bmbt_disk_get_startoff(&rec->bmbt));
@@ -362,7 +362,7 @@ xfs_bmbt_init_key_from_rec(
 STATIC void
 xfs_bmbt_init_high_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	key->bmbt.br_startoff = cpu_to_be64(
 			xfs_bmbt_disk_get_startoff(&rec->bmbt) +
@@ -388,7 +388,7 @@ xfs_bmbt_init_ptr_from_cur(
 STATIC int64_t
 xfs_bmbt_key_diff(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*key)
+	const union xfs_btree_key	*key)
 {
 	return (int64_t)be64_to_cpu(key->bmbt.br_startoff) -
 				      cur->bc_rec.b.br_startoff;
@@ -397,8 +397,8 @@ xfs_bmbt_key_diff(
 STATIC int64_t
 xfs_bmbt_diff_two_keys(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	uint64_t			a = be64_to_cpu(k1->bmbt.br_startoff);
 	uint64_t			b = be64_to_cpu(k2->bmbt.br_startoff);
@@ -428,7 +428,7 @@ xfs_bmbt_verify(
 	if (!xfs_verify_magic(bp, block->bb_magic))
 		return __this_address;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		/*
 		 * XXX: need a better way of verifying the owner here. Right now
 		 * just make sure there has been one set.
@@ -498,8 +498,8 @@ const struct xfs_buf_ops xfs_bmbt_buf_ops = {
 STATIC int
 xfs_bmbt_keys_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	return be64_to_cpu(k1->bmbt.br_startoff) <
 		be64_to_cpu(k2->bmbt.br_startoff);
@@ -508,8 +508,8 @@ xfs_bmbt_keys_inorder(
 STATIC int
 xfs_bmbt_recs_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec	*r1,
-	union xfs_btree_rec	*r2)
+	const union xfs_btree_rec	*r1,
+	const union xfs_btree_rec	*r2)
 {
 	return xfs_bmbt_disk_get_startoff(&r1->bmbt) +
 		xfs_bmbt_disk_get_blockcount(&r1->bmbt) <=
@@ -563,7 +563,7 @@ xfs_bmbt_init_cursor(
 
 	cur->bc_ops = &xfs_bmbt_ops;
 	cur->bc_flags = XFS_BTREE_LONG_PTRS | XFS_BTREE_ROOT_IN_INODE;
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_has_crc(mp))
 		cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
 
 	cur->bc_ino.forksize = XFS_IFORK_SIZE(ip, whichfork);

fs/xfs/libxfs/xfs_bmap_btree.h

@@ -16,7 +16,7 @@ struct xfs_trans;
  * Btree block header size depends on a superblock flag.
  */
 #define XFS_BMBT_BLOCK_LEN(mp) \
-	(xfs_sb_version_hascrc(&((mp)->m_sb)) ? \
+	(xfs_has_crc(((mp))) ? \
 		XFS_BTREE_LBLOCK_CRC_LEN : XFS_BTREE_LBLOCK_LEN)
 
 #define XFS_BMBT_REC_ADDR(mp, block, index) \
@@ -88,9 +88,10 @@ extern void xfs_bmdr_to_bmbt(struct xfs_inode *, xfs_bmdr_block_t *, int,
 			struct xfs_btree_block *, int);
 
 void xfs_bmbt_disk_set_all(struct xfs_bmbt_rec *r, struct xfs_bmbt_irec *s);
-extern xfs_filblks_t xfs_bmbt_disk_get_blockcount(xfs_bmbt_rec_t *r);
-extern xfs_fileoff_t xfs_bmbt_disk_get_startoff(xfs_bmbt_rec_t *r);
-extern void xfs_bmbt_disk_get_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s);
+extern xfs_filblks_t xfs_bmbt_disk_get_blockcount(const struct xfs_bmbt_rec *r);
+extern xfs_fileoff_t xfs_bmbt_disk_get_startoff(const struct xfs_bmbt_rec *r);
+void xfs_bmbt_disk_get_all(const struct xfs_bmbt_rec *r,
+		struct xfs_bmbt_irec *s);
 
 extern void xfs_bmbt_to_bmdr(struct xfs_mount *, struct xfs_btree_block *, int,
 			xfs_bmdr_block_t *, int);

fs/xfs/libxfs/xfs_btree.c

@@ -64,13 +64,13 @@ __xfs_btree_check_lblock(
 {
 	struct xfs_mount	*mp = cur->bc_mp;
 	xfs_btnum_t		btnum = cur->bc_btnum;
-	int			crc = xfs_sb_version_hascrc(&mp->m_sb);
+	int			crc = xfs_has_crc(mp);
 
 	if (crc) {
 		if (!uuid_equal(&block->bb_u.l.bb_uuid, &mp->m_sb.sb_meta_uuid))
 			return __this_address;
 		if (block->bb_u.l.bb_blkno !=
-		    cpu_to_be64(bp ? bp->b_bn : XFS_BUF_DADDR_NULL))
+		    cpu_to_be64(bp ? xfs_buf_daddr(bp) : XFS_BUF_DADDR_NULL))
 			return __this_address;
 		if (block->bb_u.l.bb_pad != cpu_to_be32(0))
 			return __this_address;
@@ -129,13 +129,13 @@ __xfs_btree_check_sblock(
 {
 	struct xfs_mount	*mp = cur->bc_mp;
 	xfs_btnum_t		btnum = cur->bc_btnum;
-	int			crc = xfs_sb_version_hascrc(&mp->m_sb);
+	int			crc = xfs_has_crc(mp);
 
 	if (crc) {
 		if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid))
 			return __this_address;
 		if (block->bb_u.s.bb_blkno !=
-		    cpu_to_be64(bp ? bp->b_bn : XFS_BUF_DADDR_NULL))
+		    cpu_to_be64(bp ? xfs_buf_daddr(bp) : XFS_BUF_DADDR_NULL))
 			return __this_address;
 	}
 
@@ -226,7 +226,7 @@ xfs_btree_check_sptr(
 static int
 xfs_btree_check_ptr(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*ptr,
+	const union xfs_btree_ptr	*ptr,
 	int				index,
 	int				level)
 {
@@ -273,7 +273,7 @@ xfs_btree_lblock_calc_crc(
 	struct xfs_btree_block	*block = XFS_BUF_TO_BLOCK(bp);
 	struct xfs_buf_log_item	*bip = bp->b_log_item;
 
-	if (!xfs_sb_version_hascrc(&bp->b_mount->m_sb))
+	if (!xfs_has_crc(bp->b_mount))
 		return;
 	if (bip)
 		block->bb_u.l.bb_lsn = cpu_to_be64(bip->bli_item.li_lsn);
@@ -287,7 +287,7 @@ xfs_btree_lblock_verify_crc(
 	struct xfs_btree_block	*block = XFS_BUF_TO_BLOCK(bp);
 	struct xfs_mount	*mp = bp->b_mount;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		if (!xfs_log_check_lsn(mp, be64_to_cpu(block->bb_u.l.bb_lsn)))
 			return false;
 		return xfs_buf_verify_cksum(bp, XFS_BTREE_LBLOCK_CRC_OFF);
@@ -311,7 +311,7 @@ xfs_btree_sblock_calc_crc(
 	struct xfs_btree_block	*block = XFS_BUF_TO_BLOCK(bp);
 	struct xfs_buf_log_item	*bip = bp->b_log_item;
 
-	if (!xfs_sb_version_hascrc(&bp->b_mount->m_sb))
+	if (!xfs_has_crc(bp->b_mount))
 		return;
 	if (bip)
 		block->bb_u.s.bb_lsn = cpu_to_be64(bip->bli_item.li_lsn);
@@ -325,7 +325,7 @@ xfs_btree_sblock_verify_crc(
 	struct xfs_btree_block  *block = XFS_BUF_TO_BLOCK(bp);
 	struct xfs_mount	*mp = bp->b_mount;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		if (!xfs_log_check_lsn(mp, be64_to_cpu(block->bb_u.s.bb_lsn)))
 			return false;
 		return xfs_buf_verify_cksum(bp, XFS_BTREE_SBLOCK_CRC_OFF);
@@ -374,7 +374,7 @@ xfs_btree_del_cursor(
 	}
 
 	ASSERT(cur->bc_btnum != XFS_BTNUM_BMAP || cur->bc_ino.allocated == 0 ||
-	       XFS_FORCED_SHUTDOWN(cur->bc_mp));
+	       xfs_is_shutdown(cur->bc_mp));
 	if (unlikely(cur->bc_flags & XFS_BTREE_STAGING))
 		kmem_free(cur->bc_ops);
 	if (!(cur->bc_flags & XFS_BTREE_LONG_PTRS) && cur->bc_ag.pag)
@@ -420,7 +420,7 @@ xfs_btree_dup_cursor(
 		bp = cur->bc_bufs[i];
 		if (bp) {
 			error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp,
-						   XFS_BUF_ADDR(bp), mp->m_bsize,
+						   xfs_buf_daddr(bp), mp->m_bsize,
 						   0, &bp,
 						   cur->bc_ops->buf_ops);
 			if (error) {
@@ -936,7 +936,7 @@ xfs_btree_readahead(
 STATIC int
 xfs_btree_ptr_to_daddr(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*ptr,
+	const union xfs_btree_ptr	*ptr,
 	xfs_daddr_t			*daddr)
 {
 	xfs_fsblock_t		fsbno;
@@ -1013,7 +1013,7 @@ xfs_btree_setbuf(
 bool
 xfs_btree_ptr_is_null(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*ptr)
+	const union xfs_btree_ptr	*ptr)
 {
 	if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
 		return ptr->l == cpu_to_be64(NULLFSBLOCK);
@@ -1061,7 +1061,7 @@ void
 xfs_btree_set_sibling(
 	struct xfs_btree_cur		*cur,
 	struct xfs_btree_block		*block,
-	union xfs_btree_ptr	*ptr,
+	const union xfs_btree_ptr	*ptr,
 	int				lr)
 {
 	ASSERT(lr == XFS_BB_LEFTSIB || lr == XFS_BB_RIGHTSIB);
@@ -1090,7 +1090,7 @@ xfs_btree_init_block_int(
 	__u64			owner,
 	unsigned int		flags)
 {
-	int			crc = xfs_sb_version_hascrc(&mp->m_sb);
+	int			crc = xfs_has_crc(mp);
 	__u32			magic = xfs_btree_magic(crc, btnum);
 
 	buf->bb_magic = cpu_to_be32(magic);
@@ -1131,7 +1131,7 @@ xfs_btree_init_block(
 	__u16		numrecs,
 	__u64		owner)
 {
-	xfs_btree_init_block_int(mp, XFS_BUF_TO_BLOCK(bp), bp->b_bn,
+	xfs_btree_init_block_int(mp, XFS_BUF_TO_BLOCK(bp), xfs_buf_daddr(bp),
 				 btnum, level, numrecs, owner, 0);
 }
 
@@ -1155,9 +1155,9 @@ xfs_btree_init_block_cur(
 	else
 		owner = cur->bc_ag.pag->pag_agno;
 
-	xfs_btree_init_block_int(cur->bc_mp, XFS_BUF_TO_BLOCK(bp), bp->b_bn,
-				 cur->bc_btnum, level, numrecs,
-				 owner, cur->bc_flags);
+	xfs_btree_init_block_int(cur->bc_mp, XFS_BUF_TO_BLOCK(bp),
+				xfs_buf_daddr(bp), cur->bc_btnum, level,
+				numrecs, owner, cur->bc_flags);
 }
 
 /*
@@ -1192,10 +1192,10 @@ xfs_btree_buf_to_ptr(
 {
 	if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
 		ptr->l = cpu_to_be64(XFS_DADDR_TO_FSB(cur->bc_mp,
-					XFS_BUF_ADDR(bp)));
+					xfs_buf_daddr(bp)));
 	else {
 		ptr->s = cpu_to_be32(xfs_daddr_to_agbno(cur->bc_mp,
-					XFS_BUF_ADDR(bp)));
+					xfs_buf_daddr(bp)));
 	}
 }
 
@@ -1230,7 +1230,7 @@ xfs_btree_set_refs(
 int
 xfs_btree_get_buf_block(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*ptr,
+	const union xfs_btree_ptr	*ptr,
 	struct xfs_btree_block		**block,
 	struct xfs_buf			**bpp)
 {
@@ -1258,7 +1258,7 @@ xfs_btree_get_buf_block(
 STATIC int
 xfs_btree_read_buf_block(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*ptr,
+	const union xfs_btree_ptr	*ptr,
 	int				flags,
 	struct xfs_btree_block		**block,
 	struct xfs_buf			**bpp)
@@ -1291,7 +1291,7 @@ void
 xfs_btree_copy_keys(
 	struct xfs_btree_cur		*cur,
 	union xfs_btree_key		*dst_key,
-	union xfs_btree_key	*src_key,
+	const union xfs_btree_key	*src_key,
 	int				numkeys)
 {
 	ASSERT(numkeys >= 0);
@@ -1715,7 +1715,7 @@ int
 xfs_btree_lookup_get_block(
 	struct xfs_btree_cur		*cur,	/* btree cursor */
 	int				level,	/* level in the btree */
-	union xfs_btree_ptr	*pp,	/* ptr to btree block */
+	const union xfs_btree_ptr	*pp,	/* ptr to btree block */
 	struct xfs_btree_block		**blkp) /* return btree block */
 {
 	struct xfs_buf		*bp;	/* buffer pointer for btree block */
@@ -1739,7 +1739,7 @@ xfs_btree_lookup_get_block(
 	error = xfs_btree_ptr_to_daddr(cur, pp, &daddr);
 	if (error)
 		return error;
-	if (bp && XFS_BUF_ADDR(bp) == daddr) {
+	if (bp && xfs_buf_daddr(bp) == daddr) {
 		*blkp = XFS_BUF_TO_BLOCK(bp);
 		return 0;
 	}
@@ -1749,7 +1749,7 @@ xfs_btree_lookup_get_block(
 		return error;
 
 	/* Check the inode owner since the verifiers don't. */
-	if (xfs_sb_version_hascrc(&cur->bc_mp->m_sb) &&
+	if (xfs_has_crc(cur->bc_mp) &&
 	    !(cur->bc_ino.flags & XFS_BTCUR_BMBT_INVALID_OWNER) &&
 	    (cur->bc_flags & XFS_BTREE_LONG_PTRS) &&
 	    be64_to_cpu((*blkp)->bb_u.l.bb_owner) !=
@@ -2923,10 +2923,11 @@ xfs_btree_new_iroot(
 	 */
 	memcpy(cblock, block, xfs_btree_block_len(cur));
 	if (cur->bc_flags & XFS_BTREE_CRC_BLOCKS) {
+		__be64 bno = cpu_to_be64(xfs_buf_daddr(cbp));
 		if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
-			cblock->bb_u.l.bb_blkno = cpu_to_be64(cbp->b_bn);
+			cblock->bb_u.l.bb_blkno = bno;
 		else
-			cblock->bb_u.s.bb_blkno = cpu_to_be64(cbp->b_bn);
+			cblock->bb_u.s.bb_blkno = bno;
 	}
 
 	be16_add_cpu(&block->bb_level, 1);
@@ -3225,7 +3226,7 @@ xfs_btree_insrec(
 
 	/* Get pointers to the btree buffer and block. */
 	block = xfs_btree_get_block(cur, level, &bp);
-	old_bn = bp ? bp->b_bn : XFS_BUF_DADDR_NULL;
+	old_bn = bp ? xfs_buf_daddr(bp) : XFS_BUF_DADDR_NULL;
 	numrecs = xfs_btree_get_numrecs(block);
 
 #ifdef DEBUG
@@ -3341,7 +3342,7 @@ xfs_btree_insrec(
 	 * some records into the new tree block), so use the regular key
 	 * update mechanism.
 	 */
-	if (bp && bp->b_bn != old_bn) {
+	if (bp && xfs_buf_daddr(bp) != old_bn) {
 		xfs_btree_get_keys(cur, block, lkey);
 	} else if (xfs_btree_needs_key_update(cur, optr)) {
 		error = xfs_btree_update_keys(cur, level);
@@ -4418,11 +4419,11 @@ xfs_btree_lblock_v5hdr_verify(
 	struct xfs_mount	*mp = bp->b_mount;
 	struct xfs_btree_block	*block = XFS_BUF_TO_BLOCK(bp);
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return __this_address;
 	if (!uuid_equal(&block->bb_u.l.bb_uuid, &mp->m_sb.sb_meta_uuid))
 		return __this_address;
-	if (block->bb_u.l.bb_blkno != cpu_to_be64(bp->b_bn))
+	if (block->bb_u.l.bb_blkno != cpu_to_be64(xfs_buf_daddr(bp)))
 		return __this_address;
 	if (owner != XFS_RMAP_OWN_UNKNOWN &&
 	    be64_to_cpu(block->bb_u.l.bb_owner) != owner)
@@ -4468,11 +4469,11 @@ xfs_btree_sblock_v5hdr_verify(
 	struct xfs_btree_block	*block = XFS_BUF_TO_BLOCK(bp);
 	struct xfs_perag	*pag = bp->b_pag;
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return __this_address;
 	if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid))
 		return __this_address;
-	if (block->bb_u.s.bb_blkno != cpu_to_be64(bp->b_bn))
+	if (block->bb_u.s.bb_blkno != cpu_to_be64(xfs_buf_daddr(bp)))
 		return __this_address;
 	if (pag && be32_to_cpu(block->bb_u.s.bb_owner) != pag->pag_agno)
 		return __this_address;
@@ -4499,7 +4500,7 @@ xfs_btree_sblock_verify(
 		return __this_address;
 
 	/* sibling pointer verification */
-	agno = xfs_daddr_to_agno(mp, XFS_BUF_ADDR(bp));
+	agno = xfs_daddr_to_agno(mp, xfs_buf_daddr(bp));
 	if (block->bb_u.s.bb_leftsib != cpu_to_be32(NULLAGBLOCK) &&
 	    !xfs_verify_agbno(mp, agno, be32_to_cpu(block->bb_u.s.bb_leftsib)))
 		return __this_address;
@@ -4536,8 +4537,8 @@ xfs_btree_compute_maxlevels(
 STATIC int
 xfs_btree_simple_query_range(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key		*low_key,
-	union xfs_btree_key		*high_key,
+	const union xfs_btree_key	*low_key,
+	const union xfs_btree_key	*high_key,
 	xfs_btree_query_range_fn	fn,
 	void				*priv)
 {
@@ -4627,8 +4628,8 @@ out:
 STATIC int
 xfs_btree_overlapped_query_range(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key		*low_key,
-	union xfs_btree_key		*high_key,
+	const union xfs_btree_key	*low_key,
+	const union xfs_btree_key	*high_key,
 	xfs_btree_query_range_fn	fn,
 	void				*priv)
 {
@@ -4769,8 +4770,8 @@ out:
 int
 xfs_btree_query_range(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_irec		*low_rec,
-	union xfs_btree_irec		*high_rec,
+	const union xfs_btree_irec	*low_rec,
+	const union xfs_btree_irec	*high_rec,
 	xfs_btree_query_range_fn	fn,
 	void				*priv)
 {
@@ -4877,7 +4878,7 @@ xfs_btree_diff_two_ptrs(
 STATIC int
 xfs_btree_has_record_helper(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec		*rec,
+	const union xfs_btree_rec	*rec,
 	void				*priv)
 {
 	return -ECANCELED;
@@ -4887,8 +4888,8 @@ xfs_btree_has_record_helper(
 int
 xfs_btree_has_record(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_irec	*low,
-	union xfs_btree_irec	*high,
+	const union xfs_btree_irec	*low,
+	const union xfs_btree_irec	*high,
 	bool				*exists)
 {
 	int				error;

fs/xfs/libxfs/xfs_btree.h

@@ -106,19 +106,19 @@ struct xfs_btree_ops {
 
 	/* update btree root pointer */
 	void	(*set_root)(struct xfs_btree_cur *cur,
-			    union xfs_btree_ptr *nptr, int level_change);
+			    const union xfs_btree_ptr *nptr, int level_change);
 
 	/* block allocation / freeing */
 	int	(*alloc_block)(struct xfs_btree_cur *cur,
-			       union xfs_btree_ptr *start_bno,
+			       const union xfs_btree_ptr *start_bno,
 			       union xfs_btree_ptr *new_bno,
 			       int *stat);
 	int	(*free_block)(struct xfs_btree_cur *cur, struct xfs_buf *bp);
 
 	/* update last record information */
 	void	(*update_lastrec)(struct xfs_btree_cur *cur,
-				  struct xfs_btree_block *block,
-				  union xfs_btree_rec *rec,
+				  const struct xfs_btree_block *block,
+				  const union xfs_btree_rec *rec,
 				  int ptr, int reason);
 
 	/* records in block/level */
@@ -130,37 +130,37 @@ struct xfs_btree_ops {
 
 	/* init values of btree structures */
 	void	(*init_key_from_rec)(union xfs_btree_key *key,
-				     union xfs_btree_rec *rec);
+				     const union xfs_btree_rec *rec);
 	void	(*init_rec_from_cur)(struct xfs_btree_cur *cur,
 				     union xfs_btree_rec *rec);
 	void	(*init_ptr_from_cur)(struct xfs_btree_cur *cur,
 				     union xfs_btree_ptr *ptr);
 	void	(*init_high_key_from_rec)(union xfs_btree_key *key,
-					  union xfs_btree_rec *rec);
+					  const union xfs_btree_rec *rec);
 
 	/* difference between key value and cursor value */
 	int64_t (*key_diff)(struct xfs_btree_cur *cur,
-			      union xfs_btree_key *key);
+			    const union xfs_btree_key *key);
 
 	/*
 	 * Difference between key2 and key1 -- positive if key1 > key2,
 	 * negative if key1 < key2, and zero if equal.
 	 */
 	int64_t (*diff_two_keys)(struct xfs_btree_cur *cur,
-				   union xfs_btree_key *key1,
-				   union xfs_btree_key *key2);
+				 const union xfs_btree_key *key1,
+				 const union xfs_btree_key *key2);
 
 	const struct xfs_buf_ops	*buf_ops;
 
 	/* check that k1 is lower than k2 */
 	int	(*keys_inorder)(struct xfs_btree_cur *cur,
-				union xfs_btree_key *k1,
-				union xfs_btree_key *k2);
+				const union xfs_btree_key *k1,
+				const union xfs_btree_key *k2);
 
 	/* check that r1 is lower than r2 */
 	int	(*recs_inorder)(struct xfs_btree_cur *cur,
-				union xfs_btree_rec *r1,
-				union xfs_btree_rec *r2);
+				const union xfs_btree_rec *r1,
+				const union xfs_btree_rec *r2);
 };
 
 /*
@@ -423,7 +423,7 @@ void xfs_btree_log_recs(struct xfs_btree_cur *, struct xfs_buf *, int, int);
 /*
  * Helpers.
  */
-static inline int xfs_btree_get_numrecs(struct xfs_btree_block *block)
+static inline int xfs_btree_get_numrecs(const struct xfs_btree_block *block)
 {
 	return be16_to_cpu(block->bb_numrecs);
 }
@@ -434,7 +434,7 @@ static inline void xfs_btree_set_numrecs(struct xfs_btree_block *block,
 	block->bb_numrecs = cpu_to_be16(numrecs);
 }
 
-static inline int xfs_btree_get_level(struct xfs_btree_block *block)
+static inline int xfs_btree_get_level(const struct xfs_btree_block *block)
 {
 	return be16_to_cpu(block->bb_level);
 }
@@ -471,10 +471,11 @@ unsigned long long xfs_btree_calc_size(uint *limits, unsigned long long len);
  * code on its own.
  */
 typedef int (*xfs_btree_query_range_fn)(struct xfs_btree_cur *cur,
-		union xfs_btree_rec *rec, void *priv);
+		const union xfs_btree_rec *rec, void *priv);
 
 int xfs_btree_query_range(struct xfs_btree_cur *cur,
-		union xfs_btree_irec *low_rec, union xfs_btree_irec *high_rec,
+		const union xfs_btree_irec *low_rec,
+		const union xfs_btree_irec *high_rec,
 		xfs_btree_query_range_fn fn, void *priv);
 int xfs_btree_query_all(struct xfs_btree_cur *cur, xfs_btree_query_range_fn fn,
 		void *priv);
@@ -502,10 +503,11 @@ union xfs_btree_key *xfs_btree_high_key_addr(struct xfs_btree_cur *cur, int n,
 union xfs_btree_ptr *xfs_btree_ptr_addr(struct xfs_btree_cur *cur, int n,
 		struct xfs_btree_block *block);
 int xfs_btree_lookup_get_block(struct xfs_btree_cur *cur, int level,
-		union xfs_btree_ptr *pp, struct xfs_btree_block **blkp);
+		const union xfs_btree_ptr *pp, struct xfs_btree_block **blkp);
 struct xfs_btree_block *xfs_btree_get_block(struct xfs_btree_cur *cur,
 		int level, struct xfs_buf **bpp);
-bool xfs_btree_ptr_is_null(struct xfs_btree_cur *cur, union xfs_btree_ptr *ptr);
+bool xfs_btree_ptr_is_null(struct xfs_btree_cur *cur,
+		const union xfs_btree_ptr *ptr);
 int64_t xfs_btree_diff_two_ptrs(struct xfs_btree_cur *cur,
 				const union xfs_btree_ptr *a,
 				const union xfs_btree_ptr *b);
@@ -516,8 +518,9 @@ void xfs_btree_get_keys(struct xfs_btree_cur *cur,
 		struct xfs_btree_block *block, union xfs_btree_key *key);
 union xfs_btree_key *xfs_btree_high_key_from_key(struct xfs_btree_cur *cur,
 		union xfs_btree_key *key);
-int xfs_btree_has_record(struct xfs_btree_cur *cur, union xfs_btree_irec *low,
-		union xfs_btree_irec *high, bool *exists);
+int xfs_btree_has_record(struct xfs_btree_cur *cur,
+		const union xfs_btree_irec *low,
+		const union xfs_btree_irec *high, bool *exists);
 bool xfs_btree_has_more_records(struct xfs_btree_cur *cur);
 struct xfs_ifork *xfs_btree_ifork_ptr(struct xfs_btree_cur *cur);
 
@@ -540,10 +543,11 @@ xfs_btree_islastblock(
 
 void xfs_btree_set_ptr_null(struct xfs_btree_cur *cur,
 		union xfs_btree_ptr *ptr);
-int xfs_btree_get_buf_block(struct xfs_btree_cur *cur, union xfs_btree_ptr *ptr,
-		struct xfs_btree_block **block, struct xfs_buf **bpp);
+int xfs_btree_get_buf_block(struct xfs_btree_cur *cur,
+		const union xfs_btree_ptr *ptr, struct xfs_btree_block **block,
+		struct xfs_buf **bpp);
 void xfs_btree_set_sibling(struct xfs_btree_cur *cur,
-		struct xfs_btree_block *block, union xfs_btree_ptr *ptr,
+		struct xfs_btree_block *block, const union xfs_btree_ptr *ptr,
 		int lr);
 void xfs_btree_init_block_cur(struct xfs_btree_cur *cur,
 		struct xfs_buf *bp, int level, int numrecs);
@@ -551,7 +555,7 @@ void xfs_btree_copy_ptrs(struct xfs_btree_cur *cur,
 		union xfs_btree_ptr *dst_ptr,
 		const union xfs_btree_ptr *src_ptr, int numptrs);
 void xfs_btree_copy_keys(struct xfs_btree_cur *cur,
-		union xfs_btree_key *dst_key, union xfs_btree_key *src_key,
-		int numkeys);
+		union xfs_btree_key *dst_key,
+		const union xfs_btree_key *src_key, int numkeys);
 
 #endif	/* __XFS_BTREE_H__ */

fs/xfs/libxfs/xfs_btree_staging.c

@@ -60,7 +60,7 @@ xfs_btree_fakeroot_dup_cursor(
 STATIC int
 xfs_btree_fakeroot_alloc_block(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*start_bno,
+	const union xfs_btree_ptr	*start_bno,
 	union xfs_btree_ptr		*new_bno,
 	int				*stat)
 {
@@ -113,7 +113,7 @@ xfs_btree_fakeroot_init_ptr_from_cur(
 STATIC void
 xfs_btree_afakeroot_set_root(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*ptr,
+	const union xfs_btree_ptr	*ptr,
 	int				inc)
 {
 	struct xbtree_afakeroot	*afake = cur->bc_ag.afake;

fs/xfs/libxfs/xfs_da_btree.c

@@ -129,7 +129,7 @@ xfs_da3_node_hdr_from_disk(
 	struct xfs_da3_icnode_hdr	*to,
 	struct xfs_da_intnode		*from)
 {
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_da3_intnode	*from3 = (struct xfs_da3_intnode *)from;
 
 		to->forw = be32_to_cpu(from3->hdr.info.hdr.forw);
@@ -156,7 +156,7 @@ xfs_da3_node_hdr_to_disk(
 	struct xfs_da_intnode		*to,
 	struct xfs_da3_icnode_hdr	*from)
 {
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_da3_intnode	*to3 = (struct xfs_da3_intnode *)to;
 
 		ASSERT(from->magic == XFS_DA3_NODE_MAGIC);
@@ -191,10 +191,10 @@ xfs_da3_blkinfo_verify(
 	if (!xfs_verify_magic16(bp, hdr->magic))
 		return __this_address;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_meta_uuid))
 			return __this_address;
-		if (be64_to_cpu(hdr3->blkno) != bp->b_bn)
+		if (be64_to_cpu(hdr3->blkno) != xfs_buf_daddr(bp))
 			return __this_address;
 		if (!xfs_log_check_lsn(mp, be64_to_cpu(hdr3->lsn)))
 			return __this_address;
@@ -253,7 +253,7 @@ xfs_da3_node_write_verify(
 		return;
 	}
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	if (bip)
@@ -442,12 +442,12 @@ xfs_da3_node_create(
 	xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DA_NODE_BUF);
 	node = bp->b_addr;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_da3_node_hdr *hdr3 = bp->b_addr;
 
 		memset(hdr3, 0, sizeof(struct xfs_da3_node_hdr));
 		ichdr.magic = XFS_DA3_NODE_MAGIC;
-		hdr3->info.blkno = cpu_to_be64(bp->b_bn);
+		hdr3->info.blkno = cpu_to_be64(xfs_buf_daddr(bp));
 		hdr3->info.owner = cpu_to_be64(args->dp->i_ino);
 		uuid_copy(&hdr3->info.uuid, &mp->m_sb.sb_meta_uuid);
 	} else {
@@ -711,7 +711,7 @@ xfs_da3_root_split(
 	    oldroot->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC)) {
 		struct xfs_da3_intnode *node3 = (struct xfs_da3_intnode *)node;
 
-		node3->hdr.info.blkno = cpu_to_be64(bp->b_bn);
+		node3->hdr.info.blkno = cpu_to_be64(xfs_buf_daddr(bp));
 	}
 	xfs_trans_log_buf(tp, bp, 0, size - 1);
 
@@ -1219,7 +1219,7 @@ xfs_da3_root_join(
 	xfs_trans_buf_copy_type(root_blk->bp, bp);
 	if (oldroothdr.magic == XFS_DA3_NODE_MAGIC) {
 		struct xfs_da3_blkinfo *da3 = root_blk->bp->b_addr;
-		da3->blkno = cpu_to_be64(root_blk->bp->b_bn);
+		da3->blkno = cpu_to_be64(xfs_buf_daddr(root_blk->bp));
 	}
 	xfs_trans_log_buf(args->trans, root_blk->bp, 0,
 			  args->geo->blksize - 1);

fs/xfs/libxfs/xfs_da_format.h

@@ -789,7 +789,7 @@ struct xfs_attr3_rmt_hdr {
 #define XFS_ATTR3_RMT_CRC_OFF	offsetof(struct xfs_attr3_rmt_hdr, rm_crc)
 
 #define XFS_ATTR3_RMT_BUF_SPACE(mp, bufsize)	\
-	((bufsize) - (xfs_sb_version_hascrc(&(mp)->m_sb) ? \
+	((bufsize) - (xfs_has_crc((mp)) ? \
 			sizeof(struct xfs_attr3_rmt_hdr) : 0))
 
 /* Number of bytes in a directory block. */

fs/xfs/libxfs/xfs_dir2.c

@@ -115,7 +115,7 @@ xfs_da_mount(
 	dageo->fsblog = mp->m_sb.sb_blocklog;
 	dageo->blksize = xfs_dir2_dirblock_bytes(&mp->m_sb);
 	dageo->fsbcount = 1 << mp->m_sb.sb_dirblklog;
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		dageo->node_hdr_size = sizeof(struct xfs_da3_node_hdr);
 		dageo->leaf_hdr_size = sizeof(struct xfs_dir3_leaf_hdr);
 		dageo->free_hdr_size = sizeof(struct xfs_dir3_free_hdr);
@@ -730,7 +730,7 @@ xfs_dir2_hashname(
 	struct xfs_mount	*mp,
 	struct xfs_name		*name)
 {
-	if (unlikely(xfs_sb_version_hasasciici(&mp->m_sb)))
+	if (unlikely(xfs_has_asciici(mp)))
 		return xfs_ascii_ci_hashname(name);
 	return xfs_da_hashname(name->name, name->len);
 }
@@ -741,7 +741,7 @@ xfs_dir2_compname(
 	const unsigned char	*name,
 	int			len)
 {
-	if (unlikely(xfs_sb_version_hasasciici(&args->dp->i_mount->m_sb)))
+	if (unlikely(xfs_has_asciici(args->dp->i_mount)))
 		return xfs_ascii_ci_compname(args, name, len);
 	return xfs_da_compname(args, name, len);
 }

fs/xfs/libxfs/xfs_dir2_block.c

@@ -53,10 +53,10 @@ xfs_dir3_block_verify(
 	if (!xfs_verify_magic(bp, hdr3->magic))
 		return __this_address;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_meta_uuid))
 			return __this_address;
-		if (be64_to_cpu(hdr3->blkno) != bp->b_bn)
+		if (be64_to_cpu(hdr3->blkno) != xfs_buf_daddr(bp))
 			return __this_address;
 		if (!xfs_log_check_lsn(mp, be64_to_cpu(hdr3->lsn)))
 			return __this_address;
@@ -71,7 +71,7 @@ xfs_dir3_block_read_verify(
 	struct xfs_mount	*mp = bp->b_mount;
 	xfs_failaddr_t		fa;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb) &&
+	if (xfs_has_crc(mp) &&
 	     !xfs_buf_verify_cksum(bp, XFS_DIR3_DATA_CRC_OFF))
 		xfs_verifier_error(bp, -EFSBADCRC, __this_address);
 	else {
@@ -96,7 +96,7 @@ xfs_dir3_block_write_verify(
 		return;
 	}
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	if (bip)
@@ -121,7 +121,7 @@ xfs_dir3_block_header_check(
 {
 	struct xfs_mount	*mp = dp->i_mount;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_blk_hdr *hdr3 = bp->b_addr;
 
 		if (be64_to_cpu(hdr3->owner) != dp->i_ino)
@@ -171,10 +171,10 @@ xfs_dir3_block_init(
 	bp->b_ops = &xfs_dir3_block_buf_ops;
 	xfs_trans_buf_set_type(tp, bp, XFS_BLFT_DIR_BLOCK_BUF);
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		memset(hdr3, 0, sizeof(*hdr3));
 		hdr3->magic = cpu_to_be32(XFS_DIR3_BLOCK_MAGIC);
-		hdr3->blkno = cpu_to_be64(bp->b_bn);
+		hdr3->blkno = cpu_to_be64(xfs_buf_daddr(bp));
 		hdr3->owner = cpu_to_be64(dp->i_ino);
 		uuid_copy(&hdr3->uuid, &mp->m_sb.sb_meta_uuid);
 		return;

fs/xfs/libxfs/xfs_dir2_data.c

@@ -29,7 +29,7 @@ xfs_dir2_data_bestfree_p(
 	struct xfs_mount		*mp,
 	struct xfs_dir2_data_hdr	*hdr)
 {
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_has_crc(mp))
 		return ((struct xfs_dir3_data_hdr *)hdr)->best_free;
 	return hdr->bestfree;
 }
@@ -51,7 +51,7 @@ xfs_dir2_data_get_ftype(
 	struct xfs_mount		*mp,
 	struct xfs_dir2_data_entry	*dep)
 {
-	if (xfs_sb_version_hasftype(&mp->m_sb)) {
+	if (xfs_has_ftype(mp)) {
 		uint8_t			ftype = dep->name[dep->namelen];
 
 		if (likely(ftype < XFS_DIR3_FT_MAX))
@@ -70,7 +70,7 @@ xfs_dir2_data_put_ftype(
 	ASSERT(ftype < XFS_DIR3_FT_MAX);
 	ASSERT(dep->namelen != 0);
 
-	if (xfs_sb_version_hasftype(&mp->m_sb))
+	if (xfs_has_ftype(mp))
 		dep->name[dep->namelen] = ftype;
 }
 
@@ -297,10 +297,10 @@ xfs_dir3_data_verify(
 	if (!xfs_verify_magic(bp, hdr3->magic))
 		return __this_address;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_meta_uuid))
 			return __this_address;
-		if (be64_to_cpu(hdr3->blkno) != bp->b_bn)
+		if (be64_to_cpu(hdr3->blkno) != xfs_buf_daddr(bp))
 			return __this_address;
 		if (!xfs_log_check_lsn(mp, be64_to_cpu(hdr3->lsn)))
 			return __this_address;
@@ -343,7 +343,7 @@ xfs_dir3_data_read_verify(
 	struct xfs_mount	*mp = bp->b_mount;
 	xfs_failaddr_t		fa;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb) &&
+	if (xfs_has_crc(mp) &&
 	    !xfs_buf_verify_cksum(bp, XFS_DIR3_DATA_CRC_OFF))
 		xfs_verifier_error(bp, -EFSBADCRC, __this_address);
 	else {
@@ -368,7 +368,7 @@ xfs_dir3_data_write_verify(
 		return;
 	}
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	if (bip)
@@ -401,7 +401,7 @@ xfs_dir3_data_header_check(
 {
 	struct xfs_mount	*mp = dp->i_mount;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_data_hdr *hdr3 = bp->b_addr;
 
 		if (be64_to_cpu(hdr3->hdr.owner) != dp->i_ino)
@@ -717,12 +717,12 @@ xfs_dir3_data_init(
 	 * Initialize the header.
 	 */
 	hdr = bp->b_addr;
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_blk_hdr *hdr3 = bp->b_addr;
 
 		memset(hdr3, 0, sizeof(*hdr3));
 		hdr3->magic = cpu_to_be32(XFS_DIR3_DATA_MAGIC);
-		hdr3->blkno = cpu_to_be64(bp->b_bn);
+		hdr3->blkno = cpu_to_be64(xfs_buf_daddr(bp));
 		hdr3->owner = cpu_to_be64(dp->i_ino);
 		uuid_copy(&hdr3->uuid, &mp->m_sb.sb_meta_uuid);
 

fs/xfs/libxfs/xfs_dir2_leaf.c

@@ -37,7 +37,7 @@ xfs_dir2_leaf_hdr_from_disk(
 	struct xfs_dir3_icleaf_hdr	*to,
 	struct xfs_dir2_leaf		*from)
 {
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_leaf *from3 = (struct xfs_dir3_leaf *)from;
 
 		to->forw = be32_to_cpu(from3->hdr.info.hdr.forw);
@@ -68,7 +68,7 @@ xfs_dir2_leaf_hdr_to_disk(
 	struct xfs_dir2_leaf		*to,
 	struct xfs_dir3_icleaf_hdr	*from)
 {
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_leaf *to3 = (struct xfs_dir3_leaf *)to;
 
 		ASSERT(from->magic == XFS_DIR3_LEAF1_MAGIC ||
@@ -108,7 +108,7 @@ xfs_dir3_leaf1_check(
 
 	if (leafhdr.magic == XFS_DIR3_LEAF1_MAGIC) {
 		struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr;
-		if (be64_to_cpu(leaf3->info.blkno) != bp->b_bn)
+		if (be64_to_cpu(leaf3->info.blkno) != xfs_buf_daddr(bp))
 			return __this_address;
 	} else if (leafhdr.magic != XFS_DIR2_LEAF1_MAGIC)
 		return __this_address;
@@ -209,7 +209,7 @@ xfs_dir3_leaf_read_verify(
 	struct xfs_mount	*mp = bp->b_mount;
 	xfs_failaddr_t		fa;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb) &&
+	if (xfs_has_crc(mp) &&
 	     !xfs_buf_verify_cksum(bp, XFS_DIR3_LEAF_CRC_OFF))
 		xfs_verifier_error(bp, -EFSBADCRC, __this_address);
 	else {
@@ -234,7 +234,7 @@ xfs_dir3_leaf_write_verify(
 		return;
 	}
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	if (bip)
@@ -308,7 +308,7 @@ xfs_dir3_leaf_init(
 
 	ASSERT(type == XFS_DIR2_LEAF1_MAGIC || type == XFS_DIR2_LEAFN_MAGIC);
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr;
 
 		memset(leaf3, 0, sizeof(*leaf3));
@@ -316,7 +316,7 @@ xfs_dir3_leaf_init(
 		leaf3->info.hdr.magic = (type == XFS_DIR2_LEAF1_MAGIC)
 					 ? cpu_to_be16(XFS_DIR3_LEAF1_MAGIC)
 					 : cpu_to_be16(XFS_DIR3_LEAFN_MAGIC);
-		leaf3->info.blkno = cpu_to_be64(bp->b_bn);
+		leaf3->info.blkno = cpu_to_be64(xfs_buf_daddr(bp));
 		leaf3->info.owner = cpu_to_be64(owner);
 		uuid_copy(&leaf3->info.uuid, &mp->m_sb.sb_meta_uuid);
 	} else {

fs/xfs/libxfs/xfs_dir2_node.c

@@ -68,7 +68,7 @@ xfs_dir3_leafn_check(
 
 	if (leafhdr.magic == XFS_DIR3_LEAFN_MAGIC) {
 		struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr;
-		if (be64_to_cpu(leaf3->info.blkno) != bp->b_bn)
+		if (be64_to_cpu(leaf3->info.blkno) != xfs_buf_daddr(bp))
 			return __this_address;
 	} else if (leafhdr.magic != XFS_DIR2_LEAFN_MAGIC)
 		return __this_address;
@@ -105,12 +105,12 @@ xfs_dir3_free_verify(
 	if (!xfs_verify_magic(bp, hdr->magic))
 		return __this_address;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_blk_hdr *hdr3 = bp->b_addr;
 
 		if (!uuid_equal(&hdr3->uuid, &mp->m_sb.sb_meta_uuid))
 			return __this_address;
-		if (be64_to_cpu(hdr3->blkno) != bp->b_bn)
+		if (be64_to_cpu(hdr3->blkno) != xfs_buf_daddr(bp))
 			return __this_address;
 		if (!xfs_log_check_lsn(mp, be64_to_cpu(hdr3->lsn)))
 			return __this_address;
@@ -128,7 +128,7 @@ xfs_dir3_free_read_verify(
 	struct xfs_mount	*mp = bp->b_mount;
 	xfs_failaddr_t		fa;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb) &&
+	if (xfs_has_crc(mp) &&
 	    !xfs_buf_verify_cksum(bp, XFS_DIR3_FREE_CRC_OFF))
 		xfs_verifier_error(bp, -EFSBADCRC, __this_address);
 	else {
@@ -153,7 +153,7 @@ xfs_dir3_free_write_verify(
 		return;
 	}
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	if (bip)
@@ -185,7 +185,7 @@ xfs_dir3_free_header_check(
 	firstdb = (xfs_dir2_da_to_db(mp->m_dir_geo, fbno) -
 		   xfs_dir2_byte_to_db(mp->m_dir_geo, XFS_DIR2_FREE_OFFSET)) *
 			maxbests;
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_free_hdr *hdr3 = bp->b_addr;
 
 		if (be32_to_cpu(hdr3->firstdb) != firstdb)
@@ -247,7 +247,7 @@ xfs_dir2_free_hdr_from_disk(
 	struct xfs_dir3_icfree_hdr	*to,
 	struct xfs_dir2_free		*from)
 {
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_free	*from3 = (struct xfs_dir3_free *)from;
 
 		to->magic = be32_to_cpu(from3->hdr.hdr.magic);
@@ -274,7 +274,7 @@ xfs_dir2_free_hdr_to_disk(
 	struct xfs_dir2_free		*to,
 	struct xfs_dir3_icfree_hdr	*from)
 {
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_free	*to3 = (struct xfs_dir3_free *)to;
 
 		ASSERT(from->magic == XFS_DIR3_FREE_MAGIC);
@@ -341,12 +341,12 @@ xfs_dir3_free_get_buf(
 	memset(bp->b_addr, 0, sizeof(struct xfs_dir3_free_hdr));
 	memset(&hdr, 0, sizeof(hdr));
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dir3_free_hdr *hdr3 = bp->b_addr;
 
 		hdr.magic = XFS_DIR3_FREE_MAGIC;
 
-		hdr3->hdr.blkno = cpu_to_be64(bp->b_bn);
+		hdr3->hdr.blkno = cpu_to_be64(xfs_buf_daddr(bp));
 		hdr3->hdr.owner = cpu_to_be64(dp->i_ino);
 		uuid_copy(&hdr3->hdr.uuid, &mp->m_sb.sb_meta_uuid);
 	} else

fs/xfs/libxfs/xfs_dir2_priv.h

@@ -196,7 +196,7 @@ xfs_dir2_data_entsize(
 
 	len = offsetof(struct xfs_dir2_data_entry, name[0]) + namelen +
 			sizeof(xfs_dir2_data_off_t) /* tag */;
-	if (xfs_sb_version_hasftype(&mp->m_sb))
+	if (xfs_has_ftype(mp))
 		len += sizeof(uint8_t);
 	return round_up(len, XFS_DIR2_DATA_ALIGN);
 }

fs/xfs/libxfs/xfs_dir2_sf.c

@@ -48,7 +48,7 @@ xfs_dir2_sf_entsize(
 	count += sizeof(struct xfs_dir2_sf_entry);	/* namelen + offset */
 	count += hdr->i8count ? XFS_INO64_SIZE : XFS_INO32_SIZE; /* ino # */
 
-	if (xfs_sb_version_hasftype(&mp->m_sb))
+	if (xfs_has_ftype(mp))
 		count += sizeof(uint8_t);
 	return count;
 }
@@ -76,7 +76,7 @@ xfs_dir2_sf_get_ino(
 {
 	uint8_t				*from = sfep->name + sfep->namelen;
 
-	if (xfs_sb_version_hasftype(&mp->m_sb))
+	if (xfs_has_ftype(mp))
 		from++;
 
 	if (!hdr->i8count)
@@ -95,7 +95,7 @@ xfs_dir2_sf_put_ino(
 
 	ASSERT(ino <= XFS_MAXINUMBER);
 
-	if (xfs_sb_version_hasftype(&mp->m_sb))
+	if (xfs_has_ftype(mp))
 		to++;
 
 	if (hdr->i8count)
@@ -135,7 +135,7 @@ xfs_dir2_sf_get_ftype(
 	struct xfs_mount		*mp,
 	struct xfs_dir2_sf_entry	*sfep)
 {
-	if (xfs_sb_version_hasftype(&mp->m_sb)) {
+	if (xfs_has_ftype(mp)) {
 		uint8_t			ftype = sfep->name[sfep->namelen];
 
 		if (ftype < XFS_DIR3_FT_MAX)
@@ -153,7 +153,7 @@ xfs_dir2_sf_put_ftype(
 {
 	ASSERT(ftype < XFS_DIR3_FT_MAX);
 
-	if (xfs_sb_version_hasftype(&mp->m_sb))
+	if (xfs_has_ftype(mp))
 		sfep->name[sfep->namelen] = ftype;
 }
 
@@ -192,7 +192,7 @@ xfs_dir2_block_sfsize(
 	 * if there is a filetype field, add the extra byte to the namelen
 	 * for each entry that we see.
 	 */
-	has_ftype = xfs_sb_version_hasftype(&mp->m_sb) ? 1 : 0;
+	has_ftype = xfs_has_ftype(mp) ? 1 : 0;
 
 	count = i8count = namelen = 0;
 	btp = xfs_dir2_block_tail_p(geo, hdr);

fs/xfs/libxfs/xfs_dquot_buf.c

@@ -70,7 +70,7 @@ xfs_dquot_verify(
 		return __this_address;
 
 	if ((ddq->d_type & XFS_DQTYPE_BIGTIME) &&
-	    !xfs_sb_version_hasbigtime(&mp->m_sb))
+	    !xfs_has_bigtime(mp))
 		return __this_address;
 
 	if ((ddq->d_type & XFS_DQTYPE_BIGTIME) && !ddq->d_id)
@@ -106,7 +106,7 @@ xfs_dqblk_verify(
 	struct xfs_dqblk	*dqb,
 	xfs_dqid_t		id)	/* used only during quotacheck */
 {
-	if (xfs_sb_version_hascrc(&mp->m_sb) &&
+	if (xfs_has_crc(mp) &&
 	    !uuid_equal(&dqb->dd_uuid, &mp->m_sb.sb_meta_uuid))
 		return __this_address;
 
@@ -134,7 +134,7 @@ xfs_dqblk_repair(
 	dqb->dd_diskdq.d_type = type;
 	dqb->dd_diskdq.d_id = cpu_to_be32(id);
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		uuid_copy(&dqb->dd_uuid, &mp->m_sb.sb_meta_uuid);
 		xfs_update_cksum((char *)dqb, sizeof(struct xfs_dqblk),
 				 XFS_DQUOT_CRC_OFF);
@@ -151,7 +151,7 @@ xfs_dquot_buf_verify_crc(
 	int			ndquots;
 	int			i;
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return true;
 
 	/*

fs/xfs/libxfs/xfs_format.h

@@ -265,7 +265,6 @@ typedef struct xfs_dsb {
 	/* must be padded to 64 bit alignment */
 } xfs_dsb_t;
 
-
 /*
  * Misc. Flags - warning - these will be cleared by xfs_repair unless
  * a feature bit is set when the flag is used.
@@ -280,37 +279,9 @@ typedef struct xfs_dsb {
 
 #define	XFS_SB_VERSION_NUM(sbp)	((sbp)->sb_versionnum & XFS_SB_VERSION_NUMBITS)
 
-/*
- * The first XFS version we support is a v4 superblock with V2 directories.
- */
-static inline bool xfs_sb_good_v4_features(struct xfs_sb *sbp)
+static inline bool xfs_sb_is_v5(struct xfs_sb *sbp)
 {
-	if (!(sbp->sb_versionnum & XFS_SB_VERSION_DIRV2BIT))
-		return false;
-	if (!(sbp->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT))
-		return false;
-
-	/* check for unknown features in the fs */
-	if ((sbp->sb_versionnum & ~XFS_SB_VERSION_OKBITS) ||
-	    ((sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) &&
-	     (sbp->sb_features2 & ~XFS_SB_VERSION2_OKBITS)))
-		return false;
-
-	return true;
-}
-
-static inline bool xfs_sb_good_version(struct xfs_sb *sbp)
-{
-	if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5)
-		return true;
-	if (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4)
-		return xfs_sb_good_v4_features(sbp);
-	return false;
-}
-
-static inline bool xfs_sb_version_hasrealtime(struct xfs_sb *sbp)
-{
-	return sbp->sb_rblocks > 0;
+	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
 }
 
 /*
@@ -322,9 +293,10 @@ static inline bool xfs_sb_has_mismatched_features2(struct xfs_sb *sbp)
 	return sbp->sb_bad_features2 != sbp->sb_features2;
 }
 
-static inline bool xfs_sb_version_hasattr(struct xfs_sb *sbp)
+static inline bool xfs_sb_version_hasmorebits(struct xfs_sb *sbp)
 {
-	return (sbp->sb_versionnum & XFS_SB_VERSION_ATTRBIT);
+	return xfs_sb_is_v5(sbp) ||
+	       (sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT);
 }
 
 static inline void xfs_sb_version_addattr(struct xfs_sb *sbp)
@@ -332,87 +304,18 @@ static inline void xfs_sb_version_addattr(struct xfs_sb *sbp)
 	sbp->sb_versionnum |= XFS_SB_VERSION_ATTRBIT;
 }
 
-static inline bool xfs_sb_version_hasquota(struct xfs_sb *sbp)
-{
-	return (sbp->sb_versionnum & XFS_SB_VERSION_QUOTABIT);
-}
-
 static inline void xfs_sb_version_addquota(struct xfs_sb *sbp)
 {
 	sbp->sb_versionnum |= XFS_SB_VERSION_QUOTABIT;
 }
 
-static inline bool xfs_sb_version_hasalign(struct xfs_sb *sbp)
-{
-	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 ||
-		(sbp->sb_versionnum & XFS_SB_VERSION_ALIGNBIT));
-}
-
-static inline bool xfs_sb_version_hasdalign(struct xfs_sb *sbp)
-{
-	return (sbp->sb_versionnum & XFS_SB_VERSION_DALIGNBIT);
-}
-
-static inline bool xfs_sb_version_haslogv2(struct xfs_sb *sbp)
-{
-	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 ||
-	       (sbp->sb_versionnum & XFS_SB_VERSION_LOGV2BIT);
-}
-
-static inline bool xfs_sb_version_hassector(struct xfs_sb *sbp)
-{
-	return (sbp->sb_versionnum & XFS_SB_VERSION_SECTORBIT);
-}
-
-static inline bool xfs_sb_version_hasasciici(struct xfs_sb *sbp)
-{
-	return (sbp->sb_versionnum & XFS_SB_VERSION_BORGBIT);
-}
-
-static inline bool xfs_sb_version_hasmorebits(struct xfs_sb *sbp)
-{
-	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 ||
-	       (sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT);
-}
-
-/*
- * sb_features2 bit version macros.
- */
-static inline bool xfs_sb_version_haslazysbcount(struct xfs_sb *sbp)
-{
-	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
-	       (xfs_sb_version_hasmorebits(sbp) &&
-		(sbp->sb_features2 & XFS_SB_VERSION2_LAZYSBCOUNTBIT));
-}
-
-static inline bool xfs_sb_version_hasattr2(struct xfs_sb *sbp)
-{
-	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
-	       (xfs_sb_version_hasmorebits(sbp) &&
-		(sbp->sb_features2 & XFS_SB_VERSION2_ATTR2BIT));
-}
-
 static inline void xfs_sb_version_addattr2(struct xfs_sb *sbp)
 {
 	sbp->sb_versionnum |= XFS_SB_VERSION_MOREBITSBIT;
 	sbp->sb_features2 |= XFS_SB_VERSION2_ATTR2BIT;
 }
 
-static inline void xfs_sb_version_removeattr2(struct xfs_sb *sbp)
-{
-	sbp->sb_features2 &= ~XFS_SB_VERSION2_ATTR2BIT;
-	if (!sbp->sb_features2)
-		sbp->sb_versionnum &= ~XFS_SB_VERSION_MOREBITSBIT;
-}
-
-static inline bool xfs_sb_version_hasprojid32bit(struct xfs_sb *sbp)
-{
-	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) ||
-	       (xfs_sb_version_hasmorebits(sbp) &&
-		(sbp->sb_features2 & XFS_SB_VERSION2_PROJID32BIT));
-}
-
-static inline void xfs_sb_version_addprojid32bit(struct xfs_sb *sbp)
+static inline void xfs_sb_version_addprojid32(struct xfs_sb *sbp)
 {
 	sbp->sb_versionnum |= XFS_SB_VERSION_MOREBITSBIT;
 	sbp->sb_features2 |= XFS_SB_VERSION2_PROJID32BIT;
@@ -495,106 +398,21 @@ xfs_sb_has_incompat_log_feature(
 	return (sbp->sb_features_log_incompat & feature) != 0;
 }
 
-/*
- * V5 superblock specific feature checks
- */
-static inline bool xfs_sb_version_hascrc(struct xfs_sb *sbp)
+static inline void
+xfs_sb_remove_incompat_log_features(
+	struct xfs_sb	*sbp)
 {
-	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
+	sbp->sb_features_log_incompat &= ~XFS_SB_FEAT_INCOMPAT_LOG_ALL;
 }
 
-/*
- * v5 file systems support V3 inodes only, earlier file systems support
- * v2 and v1 inodes.
- */
-static inline bool xfs_sb_version_has_v3inode(struct xfs_sb *sbp)
+static inline void
+xfs_sb_add_incompat_log_features(
+	struct xfs_sb	*sbp,
+	unsigned int	features)
 {
-	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
+	sbp->sb_features_log_incompat |= features;
 }
 
-static inline bool xfs_dinode_good_version(struct xfs_sb *sbp,
-		uint8_t version)
-{
-	if (xfs_sb_version_has_v3inode(sbp))
-		return version == 3;
-	return version == 1 || version == 2;
-}
-
-static inline bool xfs_sb_version_has_pquotino(struct xfs_sb *sbp)
-{
-	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
-}
-
-static inline int xfs_sb_version_hasftype(struct xfs_sb *sbp)
-{
-	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 &&
-		xfs_sb_has_incompat_feature(sbp, XFS_SB_FEAT_INCOMPAT_FTYPE)) ||
-	       (xfs_sb_version_hasmorebits(sbp) &&
-		 (sbp->sb_features2 & XFS_SB_VERSION2_FTYPE));
-}
-
-static inline bool xfs_sb_version_hasfinobt(xfs_sb_t *sbp)
-{
-	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
-		(sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_FINOBT);
-}
-
-static inline bool xfs_sb_version_hassparseinodes(struct xfs_sb *sbp)
-{
-	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 &&
-		xfs_sb_has_incompat_feature(sbp, XFS_SB_FEAT_INCOMPAT_SPINODES);
-}
-
-/*
- * XFS_SB_FEAT_INCOMPAT_META_UUID indicates that the metadata UUID
- * is stored separately from the user-visible UUID; this allows the
- * user-visible UUID to be changed on V5 filesystems which have a
- * filesystem UUID stamped into every piece of metadata.
- */
-static inline bool xfs_sb_version_hasmetauuid(struct xfs_sb *sbp)
-{
-	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
-		(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_META_UUID);
-}
-
-static inline bool xfs_sb_version_hasrmapbt(struct xfs_sb *sbp)
-{
-	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
-		(sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_RMAPBT);
-}
-
-static inline bool xfs_sb_version_hasreflink(struct xfs_sb *sbp)
-{
-	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 &&
-		(sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_REFLINK);
-}
-
-static inline bool xfs_sb_version_hasbigtime(struct xfs_sb *sbp)
-{
-	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 &&
-		(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_BIGTIME);
-}
-
-/*
- * Inode btree block counter.  We record the number of inobt and finobt blocks
- * in the AGI header so that we can skip the finobt walk at mount time when
- * setting up per-AG reservations.
- */
-static inline bool xfs_sb_version_hasinobtcounts(struct xfs_sb *sbp)
-{
-	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 &&
-		(sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_INOBTCNT);
-}
-
-static inline bool xfs_sb_version_needsrepair(struct xfs_sb *sbp)
-{
-	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 &&
-		(sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR);
-}
-
-/*
- * end of superblock version macros
- */
 
 static inline bool
 xfs_is_quota_inode(struct xfs_sb *sbp, xfs_ino_t ino)
@@ -1062,12 +880,12 @@ enum xfs_dinode_fmt {
 /*
  * Inode size for given fs.
  */
-#define XFS_DINODE_SIZE(sbp) \
-	(xfs_sb_version_has_v3inode(sbp) ? \
+#define XFS_DINODE_SIZE(mp) \
+	(xfs_has_v3inodes(mp) ? \
 		sizeof(struct xfs_dinode) : \
 		offsetof(struct xfs_dinode, di_crc))
 #define XFS_LITINO(mp) \
-	((mp)->m_sb.sb_inodesize - XFS_DINODE_SIZE(&(mp)->m_sb))
+	((mp)->m_sb.sb_inodesize - XFS_DINODE_SIZE(mp))
 
 /*
  * Inode data & attribute fork sizes, per inode.
@@ -1454,7 +1272,7 @@ struct xfs_dsymlink_hdr {
 #define XFS_SYMLINK_MAPS 3
 
 #define XFS_SYMLINK_BUF_SPACE(mp, bufsize)	\
-	((bufsize) - (xfs_sb_version_hascrc(&(mp)->m_sb) ? \
+	((bufsize) - (xfs_has_crc((mp)) ? \
 			sizeof(struct xfs_dsymlink_hdr) : 0))
 
 
@@ -1686,7 +1504,7 @@ struct xfs_rmap_key {
 typedef __be32 xfs_rmap_ptr_t;
 
 #define	XFS_RMAP_BLOCK(mp) \
-	(xfs_sb_version_hasfinobt(&((mp)->m_sb)) ? \
+	(xfs_has_finobt(((mp))) ? \
 	 XFS_FIBT_BLOCK(mp) + 1 : \
 	 XFS_IBT_BLOCK(mp) + 1)
 
@@ -1918,7 +1736,7 @@ struct xfs_acl {
  * limited only by the maximum size of the xattr that stores the information.
  */
 #define XFS_ACL_MAX_ENTRIES(mp)	\
-	(xfs_sb_version_hascrc(&mp->m_sb) \
+	(xfs_has_crc(mp) \
 		?  (XFS_XATTR_SIZE_MAX - sizeof(struct xfs_acl)) / \
 						sizeof(struct xfs_acl_entry) \
 		: 25)

fs/xfs/libxfs/xfs_ialloc.c

@@ -58,7 +58,7 @@ xfs_inobt_update(
 	union xfs_btree_rec	rec;
 
 	rec.inobt.ir_startino = cpu_to_be32(irec->ir_startino);
-	if (xfs_sb_version_hassparseinodes(&cur->bc_mp->m_sb)) {
+	if (xfs_has_sparseinodes(cur->bc_mp)) {
 		rec.inobt.ir_u.sp.ir_holemask = cpu_to_be16(irec->ir_holemask);
 		rec.inobt.ir_u.sp.ir_count = irec->ir_count;
 		rec.inobt.ir_u.sp.ir_freecount = irec->ir_freecount;
@@ -74,11 +74,11 @@ xfs_inobt_update(
 void
 xfs_inobt_btrec_to_irec(
 	struct xfs_mount		*mp,
-	union xfs_btree_rec		*rec,
+	const union xfs_btree_rec	*rec,
 	struct xfs_inobt_rec_incore	*irec)
 {
 	irec->ir_startino = be32_to_cpu(rec->inobt.ir_startino);
-	if (xfs_sb_version_hassparseinodes(&mp->m_sb)) {
+	if (xfs_has_sparseinodes(mp)) {
 		irec->ir_holemask = be16_to_cpu(rec->inobt.ir_u.sp.ir_holemask);
 		irec->ir_count = rec->inobt.ir_u.sp.ir_count;
 		irec->ir_freecount = rec->inobt.ir_u.sp.ir_freecount;
@@ -241,7 +241,7 @@ xfs_check_agi_freecount(
 			}
 		} while (i == 1);
 
-		if (!XFS_FORCED_SHUTDOWN(cur->bc_mp))
+		if (!xfs_is_shutdown(cur->bc_mp))
 			ASSERT(freecount == cur->bc_ag.pag->pagi_freecount);
 	}
 	return 0;
@@ -302,7 +302,7 @@ xfs_ialloc_inode_init(
 	 * That means for v3 inode we log the entire buffer rather than just the
 	 * inode cores.
 	 */
-	if (xfs_sb_version_has_v3inode(&mp->m_sb)) {
+	if (xfs_has_v3inodes(mp)) {
 		version = 3;
 		ino = XFS_AGINO_TO_INO(mp, agno, XFS_AGB_TO_AGINO(mp, agbno));
 
@@ -337,7 +337,6 @@ xfs_ialloc_inode_init(
 		xfs_buf_zero(fbuf, 0, BBTOB(fbuf->b_length));
 		for (i = 0; i < M_IGEO(mp)->inodes_per_cluster; i++) {
 			int	ioffset = i << mp->m_sb.sb_inodelog;
-			uint	isize = XFS_DINODE_SIZE(&mp->m_sb);
 
 			free = xfs_make_iptr(mp, fbuf, i);
 			free->di_magic = cpu_to_be16(XFS_DINODE_MAGIC);
@@ -354,7 +353,7 @@ xfs_ialloc_inode_init(
 			} else if (tp) {
 				/* just log the inode core */
 				xfs_trans_log_buf(tp, fbuf, ioffset,
-						  ioffset + isize - 1);
+					  ioffset + XFS_DINODE_SIZE(mp) - 1);
 			}
 		}
 
@@ -635,7 +634,7 @@ xfs_ialloc_ag_alloc(
 
 #ifdef DEBUG
 	/* randomly do sparse inode allocations */
-	if (xfs_sb_version_hassparseinodes(&tp->t_mountp->m_sb) &&
+	if (xfs_has_sparseinodes(tp->t_mountp) &&
 	    igeo->ialloc_min_blks < igeo->ialloc_blks)
 		do_sparse = prandom_u32() & 1;
 #endif
@@ -712,7 +711,7 @@ xfs_ialloc_ag_alloc(
 		 */
 		isaligned = 0;
 		if (igeo->ialloc_align) {
-			ASSERT(!(args.mp->m_flags & XFS_MOUNT_NOALIGN));
+			ASSERT(!xfs_has_noalign(args.mp));
 			args.alignment = args.mp->m_dalign;
 			isaligned = 1;
 		} else
@@ -754,7 +753,7 @@ xfs_ialloc_ag_alloc(
 	 * Finally, try a sparse allocation if the filesystem supports it and
 	 * the sparse allocation length is smaller than a full chunk.
 	 */
-	if (xfs_sb_version_hassparseinodes(&args.mp->m_sb) &&
+	if (xfs_has_sparseinodes(args.mp) &&
 	    igeo->ialloc_min_blks < igeo->ialloc_blks &&
 	    args.fsbno == NULLFSBLOCK) {
 sparse_alloc:
@@ -856,7 +855,7 @@ sparse_alloc:
 		 * from the previous call. Set merge false to replace any
 		 * existing record with this one.
 		 */
-		if (xfs_sb_version_hasfinobt(&args.mp->m_sb)) {
+		if (xfs_has_finobt(args.mp)) {
 			error = xfs_inobt_insert_sprec(args.mp, tp, agbp, pag,
 				       XFS_BTNUM_FINO, &rec, false);
 			if (error)
@@ -869,7 +868,7 @@ sparse_alloc:
 		if (error)
 			return error;
 
-		if (xfs_sb_version_hasfinobt(&args.mp->m_sb)) {
+		if (xfs_has_finobt(args.mp)) {
 			error = xfs_inobt_insert(args.mp, tp, agbp, pag, newino,
 						 newlen, XFS_BTNUM_FINO);
 			if (error)
@@ -1448,7 +1447,7 @@ xfs_dialloc_ag(
 	int				offset;
 	int				i;
 
-	if (!xfs_sb_version_hasfinobt(&mp->m_sb))
+	if (!xfs_has_finobt(mp))
 		return xfs_dialloc_ag_inobt(tp, agbp, pag, parent, inop);
 
 	/*
@@ -1784,7 +1783,7 @@ xfs_dialloc(
 				break;
 		}
 
-		if (XFS_FORCED_SHUTDOWN(mp)) {
+		if (xfs_is_shutdown(mp)) {
 			error = -EFSCORRUPTED;
 			break;
 		}
@@ -1953,8 +1952,7 @@ xfs_difree_inobt(
 	 * remove the chunk if the block size is large enough for multiple inode
 	 * chunks (that might not be free).
 	 */
-	if (!(mp->m_flags & XFS_MOUNT_IKEEP) &&
-	    rec.ir_free == XFS_INOBT_ALL_FREE &&
+	if (!xfs_has_ikeep(mp) && rec.ir_free == XFS_INOBT_ALL_FREE &&
 	    mp->m_sb.sb_inopblock <= XFS_INODES_PER_CHUNK) {
 		struct xfs_perag	*pag = agbp->b_pag;
 
@@ -2098,9 +2096,8 @@ xfs_difree_finobt(
 	 * enough for multiple chunks. Leave the finobt record to remain in sync
 	 * with the inobt.
 	 */
-	if (rec.ir_free == XFS_INOBT_ALL_FREE &&
-	    mp->m_sb.sb_inopblock <= XFS_INODES_PER_CHUNK &&
-	    !(mp->m_flags & XFS_MOUNT_IKEEP)) {
+	if (!xfs_has_ikeep(mp) && rec.ir_free == XFS_INOBT_ALL_FREE &&
+	    mp->m_sb.sb_inopblock <= XFS_INODES_PER_CHUNK) {
 		error = xfs_btree_delete(cur, &i);
 		if (error)
 			goto error;
@@ -2189,7 +2186,7 @@ xfs_difree(
 	/*
 	 * Fix up the free inode btree.
 	 */
-	if (xfs_sb_version_hasfinobt(&mp->m_sb)) {
+	if (xfs_has_finobt(mp)) {
 		error = xfs_difree_finobt(mp, tp, agbp, pag, agino, &rec);
 		if (error)
 			goto error0;
@@ -2478,7 +2475,7 @@ xfs_agi_verify(
 	struct xfs_agi	*agi = bp->b_addr;
 	int		i;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		if (!uuid_equal(&agi->agi_uuid, &mp->m_sb.sb_meta_uuid))
 			return __this_address;
 		if (!xfs_log_check_lsn(mp, be64_to_cpu(agi->agi_lsn)))
@@ -2497,7 +2494,7 @@ xfs_agi_verify(
 	    be32_to_cpu(agi->agi_level) > M_IGEO(mp)->inobt_maxlevels)
 		return __this_address;
 
-	if (xfs_sb_version_hasfinobt(&mp->m_sb) &&
+	if (xfs_has_finobt(mp) &&
 	    (be32_to_cpu(agi->agi_free_level) < 1 ||
 	     be32_to_cpu(agi->agi_free_level) > M_IGEO(mp)->inobt_maxlevels))
 		return __this_address;
@@ -2528,7 +2525,7 @@ xfs_agi_read_verify(
 	struct xfs_mount *mp = bp->b_mount;
 	xfs_failaddr_t	fa;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb) &&
+	if (xfs_has_crc(mp) &&
 	    !xfs_buf_verify_cksum(bp, XFS_AGI_CRC_OFF))
 		xfs_verifier_error(bp, -EFSBADCRC, __this_address);
 	else {
@@ -2553,7 +2550,7 @@ xfs_agi_write_verify(
 		return;
 	}
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	if (bip)
@@ -2626,7 +2623,7 @@ xfs_ialloc_read_agi(
 	 * we are in the middle of a forced shutdown.
 	 */
 	ASSERT(pag->pagi_freecount == be32_to_cpu(agi->agi_freecount) ||
-		XFS_FORCED_SHUTDOWN(mp));
+		xfs_is_shutdown(mp));
 	return 0;
 }
 
@@ -2716,7 +2713,7 @@ struct xfs_ialloc_count_inodes {
 STATIC int
 xfs_ialloc_count_inodes_rec(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec		*rec,
+	const union xfs_btree_rec	*rec,
 	void				*priv)
 {
 	struct xfs_inobt_rec_incore	irec;
@@ -2773,7 +2770,7 @@ xfs_ialloc_setup_geometry(
 	uint			inodes;
 
 	igeo->new_diflags2 = 0;
-	if (xfs_sb_version_hasbigtime(&mp->m_sb))
+	if (xfs_has_bigtime(mp))
 		igeo->new_diflags2 |= XFS_DIFLAG2_BIGTIME;
 
 	/* Compute inode btree geometry. */
@@ -2828,7 +2825,7 @@ xfs_ialloc_setup_geometry(
 	 * cannot change the behavior.
 	 */
 	igeo->inode_cluster_size_raw = XFS_INODE_BIG_CLUSTER_SIZE;
-	if (xfs_sb_version_has_v3inode(&mp->m_sb)) {
+	if (xfs_has_v3inodes(mp)) {
 		int	new_size = igeo->inode_cluster_size_raw;
 
 		new_size *= mp->m_sb.sb_inodesize / XFS_DINODE_MIN_SIZE;
@@ -2846,7 +2843,7 @@ xfs_ialloc_setup_geometry(
 	igeo->inodes_per_cluster = XFS_FSB_TO_INO(mp, igeo->blocks_per_cluster);
 
 	/* Calculate inode cluster alignment. */
-	if (xfs_sb_version_hasalign(&mp->m_sb) &&
+	if (xfs_has_align(mp) &&
 	    mp->m_sb.sb_inoalignmt >= igeo->blocks_per_cluster)
 		igeo->cluster_align = mp->m_sb.sb_inoalignmt;
 	else
@@ -2894,15 +2891,15 @@ xfs_ialloc_calc_rootino(
 	first_bno += xfs_alloc_min_freelist(mp, NULL);
 
 	/* ...the free inode btree root... */
-	if (xfs_sb_version_hasfinobt(&mp->m_sb))
+	if (xfs_has_finobt(mp))
 		first_bno++;
 
 	/* ...the reverse mapping btree root... */
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (xfs_has_rmapbt(mp))
 		first_bno++;
 
 	/* ...the reference count btree... */
-	if (xfs_sb_version_hasreflink(&mp->m_sb))
+	if (xfs_has_reflink(mp))
 		first_bno++;
 
 	/*
@@ -2920,9 +2917,9 @@ xfs_ialloc_calc_rootino(
 	 * Now round first_bno up to whatever allocation alignment is given
 	 * by the filesystem or was passed in.
 	 */
-	if (xfs_sb_version_hasdalign(&mp->m_sb) && igeo->ialloc_align > 0)
+	if (xfs_has_dalign(mp) && igeo->ialloc_align > 0)
 		first_bno = roundup(first_bno, sunit);
-	else if (xfs_sb_version_hasalign(&mp->m_sb) &&
+	else if (xfs_has_align(mp) &&
 			mp->m_sb.sb_inoalignmt > 1)
 		first_bno = roundup(first_bno, mp->m_sb.sb_inoalignmt);
 
@@ -2953,7 +2950,7 @@ xfs_ialloc_check_shrink(
 	int			has;
 	int			error;
 
-	if (!xfs_sb_version_hassparseinodes(&mp->m_sb))
+	if (!xfs_has_sparseinodes(mp))
 		return 0;
 
 	pag = xfs_perag_get(mp, agno);

fs/xfs/libxfs/xfs_ialloc.h

@@ -106,7 +106,8 @@ int xfs_read_agi(struct xfs_mount *mp, struct xfs_trans *tp,
 		xfs_agnumber_t agno, struct xfs_buf **bpp);
 
 union xfs_btree_rec;
-void xfs_inobt_btrec_to_irec(struct xfs_mount *mp, union xfs_btree_rec *rec,
+void xfs_inobt_btrec_to_irec(struct xfs_mount *mp,
+		const union xfs_btree_rec *rec,
 		struct xfs_inobt_rec_incore *irec);
 int xfs_ialloc_has_inodes_at_extent(struct xfs_btree_cur *cur,
 		xfs_agblock_t bno, xfs_extlen_t len, bool *exists);

fs/xfs/libxfs/xfs_ialloc_btree.c

@@ -41,7 +41,7 @@ xfs_inobt_dup_cursor(
 STATIC void
 xfs_inobt_set_root(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*nptr,
+	const union xfs_btree_ptr	*nptr,
 	int				inc)	/* level change */
 {
 	struct xfs_buf		*agbp = cur->bc_ag.agbp;
@@ -55,7 +55,7 @@ xfs_inobt_set_root(
 STATIC void
 xfs_finobt_set_root(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*nptr,
+	const union xfs_btree_ptr	*nptr,
 	int				inc)	/* level change */
 {
 	struct xfs_buf		*agbp = cur->bc_ag.agbp;
@@ -76,7 +76,7 @@ xfs_inobt_mod_blockcount(
 	struct xfs_buf		*agbp = cur->bc_ag.agbp;
 	struct xfs_agi		*agi = agbp->b_addr;
 
-	if (!xfs_sb_version_hasinobtcounts(&cur->bc_mp->m_sb))
+	if (!xfs_has_inobtcounts(cur->bc_mp))
 		return;
 
 	if (cur->bc_btnum == XFS_BTNUM_FINO)
@@ -89,7 +89,7 @@ xfs_inobt_mod_blockcount(
 STATIC int
 __xfs_inobt_alloc_block(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*start,
+	const union xfs_btree_ptr	*start,
 	union xfs_btree_ptr		*new,
 	int				*stat,
 	enum xfs_ag_resv_type		resv)
@@ -128,7 +128,7 @@ __xfs_inobt_alloc_block(
 STATIC int
 xfs_inobt_alloc_block(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*start,
+	const union xfs_btree_ptr	*start,
 	union xfs_btree_ptr		*new,
 	int				*stat)
 {
@@ -138,7 +138,7 @@ xfs_inobt_alloc_block(
 STATIC int
 xfs_finobt_alloc_block(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*start,
+	const union xfs_btree_ptr	*start,
 	union xfs_btree_ptr		*new,
 	int				*stat)
 {
@@ -156,7 +156,7 @@ __xfs_inobt_free_block(
 {
 	xfs_inobt_mod_blockcount(cur, -1);
 	return xfs_free_extent(cur->bc_tp,
-			XFS_DADDR_TO_FSB(cur->bc_mp, XFS_BUF_ADDR(bp)), 1,
+			XFS_DADDR_TO_FSB(cur->bc_mp, xfs_buf_daddr(bp)), 1,
 			&XFS_RMAP_OINFO_INOBT, resv);
 }
 
@@ -189,7 +189,7 @@ xfs_inobt_get_maxrecs(
 STATIC void
 xfs_inobt_init_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	key->inobt.ir_startino = rec->inobt.ir_startino;
 }
@@ -197,7 +197,7 @@ xfs_inobt_init_key_from_rec(
 STATIC void
 xfs_inobt_init_high_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	__u32				x;
 
@@ -212,7 +212,7 @@ xfs_inobt_init_rec_from_cur(
 	union xfs_btree_rec	*rec)
 {
 	rec->inobt.ir_startino = cpu_to_be32(cur->bc_rec.i.ir_startino);
-	if (xfs_sb_version_hassparseinodes(&cur->bc_mp->m_sb)) {
+	if (xfs_has_sparseinodes(cur->bc_mp)) {
 		rec->inobt.ir_u.sp.ir_holemask =
 					cpu_to_be16(cur->bc_rec.i.ir_holemask);
 		rec->inobt.ir_u.sp.ir_count = cur->bc_rec.i.ir_count;
@@ -254,7 +254,7 @@ xfs_finobt_init_ptr_from_cur(
 STATIC int64_t
 xfs_inobt_key_diff(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*key)
+	const union xfs_btree_key	*key)
 {
 	return (int64_t)be32_to_cpu(key->inobt.ir_startino) -
 			  cur->bc_rec.i.ir_startino;
@@ -263,8 +263,8 @@ xfs_inobt_key_diff(
 STATIC int64_t
 xfs_inobt_diff_two_keys(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	return (int64_t)be32_to_cpu(k1->inobt.ir_startino) -
 			  be32_to_cpu(k2->inobt.ir_startino);
@@ -292,7 +292,7 @@ xfs_inobt_verify(
 	 * but beware of the landmine (i.e. need to check pag->pagi_init) if we
 	 * ever do.
 	 */
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		fa = xfs_btree_sblock_v5hdr_verify(bp);
 		if (fa)
 			return fa;
@@ -361,8 +361,8 @@ const struct xfs_buf_ops xfs_finobt_buf_ops = {
 STATIC int
 xfs_inobt_keys_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	return be32_to_cpu(k1->inobt.ir_startino) <
 		be32_to_cpu(k2->inobt.ir_startino);
@@ -371,8 +371,8 @@ xfs_inobt_keys_inorder(
 STATIC int
 xfs_inobt_recs_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec	*r1,
-	union xfs_btree_rec	*r2)
+	const union xfs_btree_rec	*r1,
+	const union xfs_btree_rec	*r2)
 {
 	return be32_to_cpu(r1->inobt.ir_startino) + XFS_INODES_PER_CHUNK <=
 		be32_to_cpu(r2->inobt.ir_startino);
@@ -446,7 +446,7 @@ xfs_inobt_init_common(
 
 	cur->bc_blocklog = mp->m_sb.sb_blocklog;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_has_crc(mp))
 		cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
 
 	/* take a reference for the cursor */
@@ -511,7 +511,7 @@ xfs_inobt_commit_staged_btree(
 		fields = XFS_AGI_ROOT | XFS_AGI_LEVEL;
 		agi->agi_root = cpu_to_be32(afake->af_root);
 		agi->agi_level = cpu_to_be32(afake->af_levels);
-		if (xfs_sb_version_hasinobtcounts(&cur->bc_mp->m_sb)) {
+		if (xfs_has_inobtcounts(cur->bc_mp)) {
 			agi->agi_iblocks = cpu_to_be32(afake->af_blocks);
 			fields |= XFS_AGI_IBLOCKS;
 		}
@@ -521,7 +521,7 @@ xfs_inobt_commit_staged_btree(
 		fields = XFS_AGI_FREE_ROOT | XFS_AGI_FREE_LEVEL;
 		agi->agi_free_root = cpu_to_be32(afake->af_root);
 		agi->agi_free_level = cpu_to_be32(afake->af_levels);
-		if (xfs_sb_version_hasinobtcounts(&cur->bc_mp->m_sb)) {
+		if (xfs_has_inobtcounts(cur->bc_mp)) {
 			agi->agi_fblocks = cpu_to_be32(afake->af_blocks);
 			fields |= XFS_AGI_IBLOCKS;
 		}
@@ -737,10 +737,10 @@ xfs_finobt_calc_reserves(
 	xfs_extlen_t		tree_len = 0;
 	int			error;
 
-	if (!xfs_sb_version_hasfinobt(&mp->m_sb))
+	if (!xfs_has_finobt(mp))
 		return 0;
 
-	if (xfs_sb_version_hasinobtcounts(&mp->m_sb))
+	if (xfs_has_inobtcounts(mp))
 		error = xfs_finobt_read_blocks(mp, tp, pag, &tree_len);
 	else
 		error = xfs_inobt_count_blocks(mp, tp, pag, XFS_BTNUM_FINO,

fs/xfs/libxfs/xfs_ialloc_btree.h

@@ -19,7 +19,7 @@ struct xfs_perag;
  * Btree block header size depends on a superblock flag.
  */
 #define XFS_INOBT_BLOCK_LEN(mp) \
-	(xfs_sb_version_hascrc(&((mp)->m_sb)) ? \
+	(xfs_has_crc(((mp))) ? \
 		XFS_BTREE_SBLOCK_CRC_LEN : XFS_BTREE_SBLOCK_LEN)
 
 /*

fs/xfs/libxfs/xfs_inode_buf.c

@@ -48,7 +48,7 @@ xfs_inode_buf_verify(
 	/*
 	 * Validate the magic number and version of every inode in the buffer
 	 */
-	agno = xfs_daddr_to_agno(mp, XFS_BUF_ADDR(bp));
+	agno = xfs_daddr_to_agno(mp, xfs_buf_daddr(bp));
 	ni = XFS_BB_TO_FSB(mp, bp->b_length) * mp->m_sb.sb_inopblock;
 	for (i = 0; i < ni; i++) {
 		int		di_ok;
@@ -58,7 +58,7 @@ xfs_inode_buf_verify(
 		dip = xfs_buf_offset(bp, (i << mp->m_sb.sb_inodelog));
 		unlinked_ino = be32_to_cpu(dip->di_next_unlinked);
 		di_ok = xfs_verify_magic16(bp, dip->di_magic) &&
-			xfs_dinode_good_version(&mp->m_sb, dip->di_version) &&
+			xfs_dinode_good_version(mp, dip->di_version) &&
 			xfs_verify_agino_or_null(mp, agno, unlinked_ino);
 		if (unlikely(XFS_TEST_ERROR(!di_ok, mp,
 						XFS_ERRTAG_ITOBP_INOTOBP))) {
@@ -71,7 +71,7 @@ xfs_inode_buf_verify(
 #ifdef DEBUG
 			xfs_alert(mp,
 				"bad inode magic/vsn daddr %lld #%d (magic=%x)",
-				(unsigned long long)bp->b_bn, i,
+				(unsigned long long)xfs_buf_daddr(bp), i,
 				be16_to_cpu(dip->di_magic));
 #endif
 			xfs_buf_verifier_error(bp, -EFSCORRUPTED,
@@ -192,7 +192,7 @@ xfs_inode_from_disk(
 	 * inode. If the inode is unused, mode is zero and we shouldn't mess
 	 * with the uninitialized part of it.
 	 */
-	if (!xfs_sb_version_has_v3inode(&ip->i_mount->m_sb))
+	if (!xfs_has_v3inodes(ip->i_mount))
 		ip->i_flushiter = be16_to_cpu(from->di_flushiter);
 	inode->i_generation = be32_to_cpu(from->di_gen);
 	inode->i_mode = be16_to_cpu(from->di_mode);
@@ -235,7 +235,7 @@ xfs_inode_from_disk(
 	if (from->di_dmevmask || from->di_dmstate)
 		xfs_iflags_set(ip, XFS_IPRESERVE_DM_FIELDS);
 
-	if (xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) {
+	if (xfs_has_v3inodes(ip->i_mount)) {
 		inode_set_iversion_queried(inode,
 					   be64_to_cpu(from->di_changecount));
 		ip->i_crtime = xfs_inode_from_disk_ts(from, from->di_crtime);
@@ -313,7 +313,7 @@ xfs_inode_to_disk(
 	to->di_aformat = xfs_ifork_format(ip->i_afp);
 	to->di_flags = cpu_to_be16(ip->i_diflags);
 
-	if (xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) {
+	if (xfs_has_v3inodes(ip->i_mount)) {
 		to->di_version = 3;
 		to->di_changecount = cpu_to_be64(inode_peek_iversion(inode));
 		to->di_crtime = xfs_inode_to_disk_ts(ip, ip->i_crtime);
@@ -413,7 +413,7 @@ xfs_dinode_verify(
 
 	/* Verify v3 integrity information first */
 	if (dip->di_version >= 3) {
-		if (!xfs_sb_version_has_v3inode(&mp->m_sb))
+		if (!xfs_has_v3inodes(mp))
 			return __this_address;
 		if (!xfs_verify_cksum((char *)dip, mp->m_sb.sb_inodesize,
 				      XFS_DINODE_CRC_OFF))
@@ -515,7 +515,7 @@ xfs_dinode_verify(
 
 	/* don't allow reflink/cowextsize if we don't have reflink */
 	if ((flags2 & (XFS_DIFLAG2_REFLINK | XFS_DIFLAG2_COWEXTSIZE)) &&
-	     !xfs_sb_version_hasreflink(&mp->m_sb))
+	     !xfs_has_reflink(mp))
 		return __this_address;
 
 	/* only regular files get reflink */
@@ -534,7 +534,7 @@ xfs_dinode_verify(
 
 	/* bigtime iflag can only happen on bigtime filesystems */
 	if (xfs_dinode_has_bigtime(dip) &&
-	    !xfs_sb_version_hasbigtime(&mp->m_sb))
+	    !xfs_has_bigtime(mp))
 		return __this_address;
 
 	return NULL;
@@ -550,7 +550,7 @@ xfs_dinode_calc_crc(
 	if (dip->di_version < 3)
 		return;
 
-	ASSERT(xfs_sb_version_hascrc(&mp->m_sb));
+	ASSERT(xfs_has_crc(mp));
 	crc = xfs_start_cksum_update((char *)dip, mp->m_sb.sb_inodesize,
 			      XFS_DINODE_CRC_OFF);
 	dip->di_crc = xfs_end_cksum(crc);
@@ -677,7 +677,7 @@ xfs_inode_validate_cowextsize(
 	hint_flag = (flags2 & XFS_DIFLAG2_COWEXTSIZE);
 	cowextsize_bytes = XFS_FSB_TO_B(mp, cowextsize);
 
-	if (hint_flag && !xfs_sb_version_hasreflink(&mp->m_sb))
+	if (hint_flag && !xfs_has_reflink(mp))
 		return __this_address;
 
 	if (hint_flag && !(S_ISDIR(mode) || S_ISREG(mode)))

fs/xfs/libxfs/xfs_inode_buf.h

@@ -21,7 +21,7 @@ struct xfs_imap {
 
 int	xfs_imap_to_bp(struct xfs_mount *mp, struct xfs_trans *tp,
 		       struct xfs_imap *imap, struct xfs_buf **bpp);
-void	xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *);
+void	xfs_dinode_calc_crc(struct xfs_mount *mp, struct xfs_dinode *dip);
 void	xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to,
 			  xfs_lsn_t lsn);
 int	xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from);
@@ -42,4 +42,13 @@ static inline uint64_t xfs_inode_encode_bigtime(struct timespec64 tv)
 struct timespec64 xfs_inode_from_disk_ts(struct xfs_dinode *dip,
 		const xfs_timestamp_t ts);
 
+static inline bool
+xfs_dinode_good_version(struct xfs_mount *mp, uint8_t version)
+{
+	if (xfs_has_v3inodes(mp))
+		return version == 3;
+	return version == 1 || version == 2;
+}
+
+
 #endif	/* __XFS_INODE_BUF_H__ */

fs/xfs/libxfs/xfs_log_format.h

@@ -41,10 +41,10 @@ typedef uint32_t xlog_tid_t;
 #define XFS_MIN_LOG_FACTOR	3
 
 #define XLOG_REC_SHIFT(log) \
-	BTOBB(1 << (xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? \
+	BTOBB(1 << (xfs_has_logv2(log->l_mp) ? \
 	 XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT))
 #define XLOG_TOTAL_REC_SHIFT(log) \
-	BTOBB(XLOG_MAX_ICLOGS << (xfs_sb_version_haslogv2(&log->l_mp->m_sb) ? \
+	BTOBB(XLOG_MAX_ICLOGS << (xfs_has_logv2(log->l_mp) ? \
 	 XLOG_MAX_RECORD_BSHIFT : XLOG_BIG_RECORD_BSHIFT))
 
 /* get lsn fields */
@@ -434,7 +434,7 @@ struct xfs_log_dinode {
 };
 
 #define xfs_log_dinode_size(mp)						\
-	(xfs_sb_version_has_v3inode(&(mp)->m_sb) ?			\
+	(xfs_has_v3inodes((mp)) ?					\
 		sizeof(struct xfs_log_dinode) :				\
 		offsetof(struct xfs_log_dinode, di_next_unlinked))
 

fs/xfs/libxfs/xfs_log_recover.h

@@ -122,6 +122,8 @@ void xlog_buf_readahead(struct xlog *log, xfs_daddr_t blkno, uint len,
 		const struct xfs_buf_ops *ops);
 bool xlog_is_buffer_cancelled(struct xlog *log, xfs_daddr_t blkno, uint len);
 
+int xlog_recover_iget(struct xfs_mount *mp, xfs_ino_t ino,
+		struct xfs_inode **ipp);
 void xlog_recover_release_intent(struct xlog *log, unsigned short intent_type,
 		uint64_t intent_id);
 

fs/xfs/libxfs/xfs_log_rlimit.c

@@ -92,7 +92,7 @@ xfs_log_calc_minimum_size(
 	if (tres.tr_logcount > 1)
 		max_logres *= tres.tr_logcount;
 
-	if (xfs_sb_version_haslogv2(&mp->m_sb) && mp->m_sb.sb_logsunit > 1)
+	if (xfs_has_logv2(mp) && mp->m_sb.sb_logsunit > 1)
 		lsunit = BTOBB(mp->m_sb.sb_logsunit);
 
 	/*

fs/xfs/libxfs/xfs_quota_defs.h

@@ -60,36 +60,14 @@ typedef uint8_t		xfs_dqtype_t;
 #define XFS_DQUOT_LOGRES(mp)	\
 	((sizeof(struct xfs_dq_logformat) + sizeof(struct xfs_disk_dquot)) * 6)
 
-#define XFS_IS_QUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
-#define XFS_IS_UQUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_UQUOTA_ACCT)
-#define XFS_IS_PQUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_PQUOTA_ACCT)
-#define XFS_IS_GQUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_GQUOTA_ACCT)
+#define XFS_IS_QUOTA_ON(mp)		((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
+#define XFS_IS_UQUOTA_ON(mp)		((mp)->m_qflags & XFS_UQUOTA_ACCT)
+#define XFS_IS_PQUOTA_ON(mp)		((mp)->m_qflags & XFS_PQUOTA_ACCT)
+#define XFS_IS_GQUOTA_ON(mp)		((mp)->m_qflags & XFS_GQUOTA_ACCT)
 #define XFS_IS_UQUOTA_ENFORCED(mp)	((mp)->m_qflags & XFS_UQUOTA_ENFD)
 #define XFS_IS_GQUOTA_ENFORCED(mp)	((mp)->m_qflags & XFS_GQUOTA_ENFD)
 #define XFS_IS_PQUOTA_ENFORCED(mp)	((mp)->m_qflags & XFS_PQUOTA_ENFD)
 
-/*
- * Incore only flags for quotaoff - these bits get cleared when quota(s)
- * are in the process of getting turned off. These flags are in m_qflags but
- * never in sb_qflags.
- */
-#define XFS_UQUOTA_ACTIVE	0x1000  /* uquotas are being turned off */
-#define XFS_GQUOTA_ACTIVE	0x2000  /* gquotas are being turned off */
-#define XFS_PQUOTA_ACTIVE	0x4000  /* pquotas are being turned off */
-#define XFS_ALL_QUOTA_ACTIVE	\
-	(XFS_UQUOTA_ACTIVE | XFS_GQUOTA_ACTIVE | XFS_PQUOTA_ACTIVE)
-
-/*
- * Checking XFS_IS_*QUOTA_ON() while holding any inode lock guarantees
- * quota will be not be switched off as long as that inode lock is held.
- */
-#define XFS_IS_QUOTA_ON(mp)	((mp)->m_qflags & (XFS_UQUOTA_ACTIVE | \
-						   XFS_GQUOTA_ACTIVE | \
-						   XFS_PQUOTA_ACTIVE))
-#define XFS_IS_UQUOTA_ON(mp)	((mp)->m_qflags & XFS_UQUOTA_ACTIVE)
-#define XFS_IS_GQUOTA_ON(mp)	((mp)->m_qflags & XFS_GQUOTA_ACTIVE)
-#define XFS_IS_PQUOTA_ON(mp)	((mp)->m_qflags & XFS_PQUOTA_ACTIVE)
-
 /*
  * Flags to tell various functions what to do. Not all of these are meaningful
  * to a single function. None of these XFS_QMOPT_* flags are meant to have

fs/xfs/libxfs/xfs_refcount.c

@@ -91,7 +91,7 @@ xfs_refcount_lookup_eq(
 /* Convert on-disk record to in-core format. */
 void
 xfs_refcount_btrec_to_irec(
-	union xfs_btree_rec		*rec,
+	const union xfs_btree_rec	*rec,
 	struct xfs_refcount_irec	*irec)
 {
 	irec->rc_startblock = be32_to_cpu(rec->refc.rc_startblock);
@@ -1253,7 +1253,7 @@ xfs_refcount_increase_extent(
 	struct xfs_trans		*tp,
 	struct xfs_bmbt_irec		*PREV)
 {
-	if (!xfs_sb_version_hasreflink(&tp->t_mountp->m_sb))
+	if (!xfs_has_reflink(tp->t_mountp))
 		return;
 
 	__xfs_refcount_add(tp, XFS_REFCOUNT_INCREASE, PREV->br_startblock,
@@ -1268,7 +1268,7 @@ xfs_refcount_decrease_extent(
 	struct xfs_trans		*tp,
 	struct xfs_bmbt_irec		*PREV)
 {
-	if (!xfs_sb_version_hasreflink(&tp->t_mountp->m_sb))
+	if (!xfs_has_reflink(tp->t_mountp))
 		return;
 
 	__xfs_refcount_add(tp, XFS_REFCOUNT_DECREASE, PREV->br_startblock,
@@ -1617,7 +1617,7 @@ xfs_refcount_alloc_cow_extent(
 {
 	struct xfs_mount		*mp = tp->t_mountp;
 
-	if (!xfs_sb_version_hasreflink(&mp->m_sb))
+	if (!xfs_has_reflink(mp))
 		return;
 
 	__xfs_refcount_add(tp, XFS_REFCOUNT_ALLOC_COW, fsb, len);
@@ -1636,7 +1636,7 @@ xfs_refcount_free_cow_extent(
 {
 	struct xfs_mount		*mp = tp->t_mountp;
 
-	if (!xfs_sb_version_hasreflink(&mp->m_sb))
+	if (!xfs_has_reflink(mp))
 		return;
 
 	/* Remove rmap entry */
@@ -1654,7 +1654,7 @@ struct xfs_refcount_recovery {
 STATIC int
 xfs_refcount_recover_extent(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec		*rec,
+	const union xfs_btree_rec	*rec,
 	void				*priv)
 {
 	struct list_head		*debris = priv;

fs/xfs/libxfs/xfs_refcount.h

@@ -78,7 +78,7 @@ static inline xfs_fileoff_t xfs_refcount_max_unmap(int log_res)
 extern int xfs_refcount_has_record(struct xfs_btree_cur *cur,
 		xfs_agblock_t bno, xfs_extlen_t len, bool *exists);
 union xfs_btree_rec;
-extern void xfs_refcount_btrec_to_irec(union xfs_btree_rec *rec,
+extern void xfs_refcount_btrec_to_irec(const union xfs_btree_rec *rec,
 		struct xfs_refcount_irec *irec);
 extern int xfs_refcount_insert(struct xfs_btree_cur *cur,
 		struct xfs_refcount_irec *irec, int *stat);

fs/xfs/libxfs/xfs_refcount_btree.c

@@ -32,7 +32,7 @@ xfs_refcountbt_dup_cursor(
 STATIC void
 xfs_refcountbt_set_root(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*ptr,
+	const union xfs_btree_ptr	*ptr,
 	int				inc)
 {
 	struct xfs_buf		*agbp = cur->bc_ag.agbp;
@@ -52,7 +52,7 @@ xfs_refcountbt_set_root(
 STATIC int
 xfs_refcountbt_alloc_block(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*start,
+	const union xfs_btree_ptr	*start,
 	union xfs_btree_ptr		*new,
 	int				*stat)
 {
@@ -102,7 +102,7 @@ xfs_refcountbt_free_block(
 	struct xfs_mount	*mp = cur->bc_mp;
 	struct xfs_buf		*agbp = cur->bc_ag.agbp;
 	struct xfs_agf		*agf = agbp->b_addr;
-	xfs_fsblock_t		fsbno = XFS_DADDR_TO_FSB(mp, XFS_BUF_ADDR(bp));
+	xfs_fsblock_t		fsbno = XFS_DADDR_TO_FSB(mp, xfs_buf_daddr(bp));
 	int			error;
 
 	trace_xfs_refcountbt_free_block(cur->bc_mp, cur->bc_ag.pag->pag_agno,
@@ -136,7 +136,7 @@ xfs_refcountbt_get_maxrecs(
 STATIC void
 xfs_refcountbt_init_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	key->refc.rc_startblock = rec->refc.rc_startblock;
 }
@@ -144,7 +144,7 @@ xfs_refcountbt_init_key_from_rec(
 STATIC void
 xfs_refcountbt_init_high_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	__u32				x;
 
@@ -178,10 +178,10 @@ xfs_refcountbt_init_ptr_from_cur(
 STATIC int64_t
 xfs_refcountbt_key_diff(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*key)
+	const union xfs_btree_key	*key)
 {
 	struct xfs_refcount_irec	*rec = &cur->bc_rec.rc;
-	struct xfs_refcount_key		*kp = &key->refc;
+	const struct xfs_refcount_key	*kp = &key->refc;
 
 	return (int64_t)be32_to_cpu(kp->rc_startblock) - rec->rc_startblock;
 }
@@ -189,8 +189,8 @@ xfs_refcountbt_key_diff(
 STATIC int64_t
 xfs_refcountbt_diff_two_keys(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	return (int64_t)be32_to_cpu(k1->refc.rc_startblock) -
 			  be32_to_cpu(k2->refc.rc_startblock);
@@ -209,7 +209,7 @@ xfs_refcountbt_verify(
 	if (!xfs_verify_magic(bp, block->bb_magic))
 		return __this_address;
 
-	if (!xfs_sb_version_hasreflink(&mp->m_sb))
+	if (!xfs_has_reflink(mp))
 		return __this_address;
 	fa = xfs_btree_sblock_v5hdr_verify(bp);
 	if (fa)
@@ -270,8 +270,8 @@ const struct xfs_buf_ops xfs_refcountbt_buf_ops = {
 STATIC int
 xfs_refcountbt_keys_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	return be32_to_cpu(k1->refc.rc_startblock) <
 	       be32_to_cpu(k2->refc.rc_startblock);
@@ -280,8 +280,8 @@ xfs_refcountbt_keys_inorder(
 STATIC int
 xfs_refcountbt_recs_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec	*r1,
-	union xfs_btree_rec	*r2)
+	const union xfs_btree_rec	*r1,
+	const union xfs_btree_rec	*r2)
 {
 	return  be32_to_cpu(r1->refc.rc_startblock) +
 		be32_to_cpu(r1->refc.rc_blockcount) <=
@@ -462,7 +462,7 @@ xfs_refcountbt_calc_reserves(
 	xfs_extlen_t		tree_len;
 	int			error;
 
-	if (!xfs_sb_version_hasreflink(&mp->m_sb))
+	if (!xfs_has_reflink(mp))
 		return 0;
 
 	error = xfs_alloc_read_agf(mp, tp, pag->pag_agno, 0, &agbp);

fs/xfs/libxfs/xfs_rmap.c

@@ -179,7 +179,7 @@ done:
 /* Convert an internal btree record to an rmap record. */
 int
 xfs_rmap_btrec_to_irec(
-	union xfs_btree_rec	*rec,
+	const union xfs_btree_rec	*rec,
 	struct xfs_rmap_irec		*irec)
 {
 	irec->rm_startblock = be32_to_cpu(rec->rmap.rm_startblock);
@@ -256,7 +256,7 @@ struct xfs_find_left_neighbor_info {
 STATIC int
 xfs_rmap_find_left_neighbor_helper(
 	struct xfs_btree_cur		*cur,
-	struct xfs_rmap_irec	*rec,
+	const struct xfs_rmap_irec	*rec,
 	void				*priv)
 {
 	struct xfs_find_left_neighbor_info	*info = priv;
@@ -332,7 +332,7 @@ xfs_rmap_find_left_neighbor(
 STATIC int
 xfs_rmap_lookup_le_range_helper(
 	struct xfs_btree_cur		*cur,
-	struct xfs_rmap_irec	*rec,
+	const struct xfs_rmap_irec	*rec,
 	void				*priv)
 {
 	struct xfs_find_left_neighbor_info	*info = priv;
@@ -705,7 +705,7 @@ xfs_rmap_free(
 	struct xfs_btree_cur		*cur;
 	int				error;
 
-	if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (!xfs_has_rmapbt(mp))
 		return 0;
 
 	cur = xfs_rmapbt_init_cursor(mp, tp, agbp, pag);
@@ -959,7 +959,7 @@ xfs_rmap_alloc(
 	struct xfs_btree_cur		*cur;
 	int				error;
 
-	if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (!xfs_has_rmapbt(mp))
 		return 0;
 
 	cur = xfs_rmapbt_init_cursor(mp, tp, agbp, pag);
@@ -2279,7 +2279,7 @@ struct xfs_rmap_query_range_info {
 STATIC int
 xfs_rmap_query_range_helper(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec	*rec,
+	const union xfs_btree_rec	*rec,
 	void				*priv)
 {
 	struct xfs_rmap_query_range_info	*query = priv;
@@ -2296,8 +2296,8 @@ xfs_rmap_query_range_helper(
 int
 xfs_rmap_query_range(
 	struct xfs_btree_cur			*cur,
-	struct xfs_rmap_irec			*low_rec,
-	struct xfs_rmap_irec			*high_rec,
+	const struct xfs_rmap_irec		*low_rec,
+	const struct xfs_rmap_irec		*high_rec,
 	xfs_rmap_query_range_fn			fn,
 	void					*priv)
 {
@@ -2459,7 +2459,7 @@ xfs_rmap_update_is_needed(
 	struct xfs_mount	*mp,
 	int			whichfork)
 {
-	return xfs_sb_version_hasrmapbt(&mp->m_sb) && whichfork != XFS_COW_FORK;
+	return xfs_has_rmapbt(mp) && whichfork != XFS_COW_FORK;
 }
 
 /*
@@ -2707,7 +2707,7 @@ struct xfs_rmap_key_state {
 STATIC int
 xfs_rmap_has_other_keys_helper(
 	struct xfs_btree_cur		*cur,
-	struct xfs_rmap_irec		*rec,
+	const struct xfs_rmap_irec	*rec,
 	void				*priv)
 {
 	struct xfs_rmap_key_state	*rks = priv;

fs/xfs/libxfs/xfs_rmap.h

@@ -135,11 +135,12 @@ int xfs_rmap_get_rec(struct xfs_btree_cur *cur, struct xfs_rmap_irec *irec,
 
 typedef int (*xfs_rmap_query_range_fn)(
 	struct xfs_btree_cur		*cur,
-	struct xfs_rmap_irec	*rec,
+	const struct xfs_rmap_irec	*rec,
 	void				*priv);
 
 int xfs_rmap_query_range(struct xfs_btree_cur *cur,
-		struct xfs_rmap_irec *low_rec, struct xfs_rmap_irec *high_rec,
+		const struct xfs_rmap_irec *low_rec,
+		const struct xfs_rmap_irec *high_rec,
 		xfs_rmap_query_range_fn fn, void *priv);
 int xfs_rmap_query_all(struct xfs_btree_cur *cur, xfs_rmap_query_range_fn fn,
 		void *priv);
@@ -192,7 +193,7 @@ int xfs_rmap_lookup_le_range(struct xfs_btree_cur *cur, xfs_agblock_t bno,
 int xfs_rmap_compare(const struct xfs_rmap_irec *a,
 		const struct xfs_rmap_irec *b);
 union xfs_btree_rec;
-int xfs_rmap_btrec_to_irec(union xfs_btree_rec *rec,
+int xfs_rmap_btrec_to_irec(const union xfs_btree_rec *rec,
 		struct xfs_rmap_irec *irec);
 int xfs_rmap_has_record(struct xfs_btree_cur *cur, xfs_agblock_t bno,
 		xfs_extlen_t len, bool *exists);

fs/xfs/libxfs/xfs_rmap_btree.c

@@ -58,7 +58,7 @@ xfs_rmapbt_dup_cursor(
 STATIC void
 xfs_rmapbt_set_root(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*ptr,
+	const union xfs_btree_ptr	*ptr,
 	int				inc)
 {
 	struct xfs_buf		*agbp = cur->bc_ag.agbp;
@@ -77,7 +77,7 @@ xfs_rmapbt_set_root(
 STATIC int
 xfs_rmapbt_alloc_block(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_ptr	*start,
+	const union xfs_btree_ptr	*start,
 	union xfs_btree_ptr		*new,
 	int				*stat)
 {
@@ -122,7 +122,7 @@ xfs_rmapbt_free_block(
 	xfs_agblock_t		bno;
 	int			error;
 
-	bno = xfs_daddr_to_agbno(cur->bc_mp, XFS_BUF_ADDR(bp));
+	bno = xfs_daddr_to_agbno(cur->bc_mp, xfs_buf_daddr(bp));
 	trace_xfs_rmapbt_free_block(cur->bc_mp, pag->pag_agno,
 			bno, 1);
 	be32_add_cpu(&agf->agf_rmap_blocks, -1);
@@ -157,7 +157,7 @@ xfs_rmapbt_get_maxrecs(
 STATIC void
 xfs_rmapbt_init_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	key->rmap.rm_startblock = rec->rmap.rm_startblock;
 	key->rmap.rm_owner = rec->rmap.rm_owner;
@@ -174,7 +174,7 @@ xfs_rmapbt_init_key_from_rec(
 STATIC void
 xfs_rmapbt_init_high_key_from_rec(
 	union xfs_btree_key		*key,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec	*rec)
 {
 	uint64_t			off;
 	int				adj;
@@ -220,10 +220,10 @@ xfs_rmapbt_init_ptr_from_cur(
 STATIC int64_t
 xfs_rmapbt_key_diff(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*key)
+	const union xfs_btree_key	*key)
 {
 	struct xfs_rmap_irec		*rec = &cur->bc_rec.r;
-	struct xfs_rmap_key	*kp = &key->rmap;
+	const struct xfs_rmap_key	*kp = &key->rmap;
 	__u64				x, y;
 	int64_t				d;
 
@@ -250,11 +250,11 @@ xfs_rmapbt_key_diff(
 STATIC int64_t
 xfs_rmapbt_diff_two_keys(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
-	struct xfs_rmap_key	*kp1 = &k1->rmap;
-	struct xfs_rmap_key	*kp2 = &k2->rmap;
+	const struct xfs_rmap_key	*kp1 = &k1->rmap;
+	const struct xfs_rmap_key	*kp2 = &k2->rmap;
 	int64_t				d;
 	__u64				x, y;
 
@@ -304,7 +304,7 @@ xfs_rmapbt_verify(
 	if (!xfs_verify_magic(bp, block->bb_magic))
 		return __this_address;
 
-	if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (!xfs_has_rmapbt(mp))
 		return __this_address;
 	fa = xfs_btree_sblock_v5hdr_verify(bp);
 	if (fa)
@@ -365,8 +365,8 @@ const struct xfs_buf_ops xfs_rmapbt_buf_ops = {
 STATIC int
 xfs_rmapbt_keys_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_key	*k1,
-	union xfs_btree_key	*k2)
+	const union xfs_btree_key	*k1,
+	const union xfs_btree_key	*k2)
 {
 	uint32_t		x;
 	uint32_t		y;
@@ -395,8 +395,8 @@ xfs_rmapbt_keys_inorder(
 STATIC int
 xfs_rmapbt_recs_inorder(
 	struct xfs_btree_cur		*cur,
-	union xfs_btree_rec	*r1,
-	union xfs_btree_rec	*r2)
+	const union xfs_btree_rec	*r1,
+	const union xfs_btree_rec	*r2)
 {
 	uint32_t		x;
 	uint32_t		y;
@@ -558,7 +558,7 @@ xfs_rmapbt_compute_maxlevels(
 	 * disallow reflinking when less than 10% of the per-AG metadata
 	 * block reservation since the fallback is a regular file copy.
 	 */
-	if (xfs_sb_version_hasreflink(&mp->m_sb))
+	if (xfs_has_reflink(mp))
 		mp->m_rmap_maxlevels = XFS_BTREE_MAXLEVELS;
 	else
 		mp->m_rmap_maxlevels = xfs_btree_compute_maxlevels(
@@ -606,7 +606,7 @@ xfs_rmapbt_calc_reserves(
 	xfs_extlen_t		tree_len;
 	int			error;
 
-	if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (!xfs_has_rmapbt(mp))
 		return 0;
 
 	error = xfs_alloc_read_agf(mp, tp, pag->pag_agno, 0, &agbp);

fs/xfs/libxfs/xfs_rtbitmap.c

@@ -1009,8 +1009,8 @@ xfs_rtfree_extent(
 int
 xfs_rtalloc_query_range(
 	struct xfs_trans		*tp,
-	struct xfs_rtalloc_rec		*low_rec,
-	struct xfs_rtalloc_rec		*high_rec,
+	const struct xfs_rtalloc_rec	*low_rec,
+	const struct xfs_rtalloc_rec	*high_rec,
 	xfs_rtalloc_query_range_fn	fn,
 	void				*priv)
 {
@@ -1018,6 +1018,7 @@ xfs_rtalloc_query_range(
 	struct xfs_mount		*mp = tp->t_mountp;
 	xfs_rtblock_t			rtstart;
 	xfs_rtblock_t			rtend;
+	xfs_rtblock_t			high_key;
 	int				is_free;
 	int				error = 0;
 
@@ -1026,12 +1027,12 @@ xfs_rtalloc_query_range(
 	if (low_rec->ar_startext >= mp->m_sb.sb_rextents ||
 	    low_rec->ar_startext == high_rec->ar_startext)
 		return 0;
-	high_rec->ar_startext = min(high_rec->ar_startext,
-			mp->m_sb.sb_rextents - 1);
+
+	high_key = min(high_rec->ar_startext, mp->m_sb.sb_rextents - 1);
 
 	/* Iterate the bitmap, looking for discrepancies. */
 	rtstart = low_rec->ar_startext;
-	while (rtstart <= high_rec->ar_startext) {
+	while (rtstart <= high_key) {
 		/* Is the first block free? */
 		error = xfs_rtcheck_range(mp, tp, rtstart, 1, 1, &rtend,
 				&is_free);
@@ -1039,8 +1040,7 @@ xfs_rtalloc_query_range(
 			break;
 
 		/* How long does the extent go for? */
-		error = xfs_rtfind_forw(mp, tp, rtstart,
-				high_rec->ar_startext, &rtend);
+		error = xfs_rtfind_forw(mp, tp, rtstart, high_key, &rtend);
 		if (error)
 			break;
 

fs/xfs/libxfs/xfs_sb.c

@@ -30,13 +30,110 @@
  * Physical superblock buffer manipulations. Shared with libxfs in userspace.
  */
 
+/*
+ * We support all XFS versions newer than a v4 superblock with V2 directories.
+ */
+bool
+xfs_sb_good_version(
+	struct xfs_sb	*sbp)
+{
+	/* all v5 filesystems are supported */
+	if (xfs_sb_is_v5(sbp))
+		return true;
+
+	/* versions prior to v4 are not supported */
+	if (XFS_SB_VERSION_NUM(sbp) < XFS_SB_VERSION_4)
+		return false;
+
+	/* V4 filesystems need v2 directories and unwritten extents */
+	if (!(sbp->sb_versionnum & XFS_SB_VERSION_DIRV2BIT))
+		return false;
+	if (!(sbp->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT))
+		return false;
+
+	/* And must not have any unknown v4 feature bits set */
+	if ((sbp->sb_versionnum & ~XFS_SB_VERSION_OKBITS) ||
+	    ((sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) &&
+	     (sbp->sb_features2 & ~XFS_SB_VERSION2_OKBITS)))
+		return false;
+
+	/* It's a supported v4 filesystem */
+	return true;
+}
+
+uint64_t
+xfs_sb_version_to_features(
+	struct xfs_sb	*sbp)
+{
+	uint64_t	features = 0;
+
+	/* optional V4 features */
+	if (sbp->sb_rblocks > 0)
+		features |= XFS_FEAT_REALTIME;
+	if (sbp->sb_versionnum & XFS_SB_VERSION_ATTRBIT)
+		features |= XFS_FEAT_ATTR;
+	if (sbp->sb_versionnum & XFS_SB_VERSION_QUOTABIT)
+		features |= XFS_FEAT_QUOTA;
+	if (sbp->sb_versionnum & XFS_SB_VERSION_ALIGNBIT)
+		features |= XFS_FEAT_ALIGN;
+	if (sbp->sb_versionnum & XFS_SB_VERSION_LOGV2BIT)
+		features |= XFS_FEAT_LOGV2;
+	if (sbp->sb_versionnum & XFS_SB_VERSION_DALIGNBIT)
+		features |= XFS_FEAT_DALIGN;
+	if (sbp->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT)
+		features |= XFS_FEAT_EXTFLG;
+	if (sbp->sb_versionnum & XFS_SB_VERSION_SECTORBIT)
+		features |= XFS_FEAT_SECTOR;
+	if (sbp->sb_versionnum & XFS_SB_VERSION_BORGBIT)
+		features |= XFS_FEAT_ASCIICI;
+	if (sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) {
+		if (sbp->sb_features2 & XFS_SB_VERSION2_LAZYSBCOUNTBIT)
+			features |= XFS_FEAT_LAZYSBCOUNT;
+		if (sbp->sb_features2 & XFS_SB_VERSION2_ATTR2BIT)
+			features |= XFS_FEAT_ATTR2;
+		if (sbp->sb_features2 & XFS_SB_VERSION2_PROJID32BIT)
+			features |= XFS_FEAT_PROJID32;
+		if (sbp->sb_features2 & XFS_SB_VERSION2_FTYPE)
+			features |= XFS_FEAT_FTYPE;
+	}
+
+	if (!xfs_sb_is_v5(sbp))
+		return features;
+
+	/* Always on V5 features */
+	features |= XFS_FEAT_ALIGN | XFS_FEAT_LOGV2 | XFS_FEAT_EXTFLG |
+		    XFS_FEAT_LAZYSBCOUNT | XFS_FEAT_ATTR2 | XFS_FEAT_PROJID32 |
+		    XFS_FEAT_V3INODES | XFS_FEAT_CRC | XFS_FEAT_PQUOTINO;
+
+	/* Optional V5 features */
+	if (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_FINOBT)
+		features |= XFS_FEAT_FINOBT;
+	if (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_RMAPBT)
+		features |= XFS_FEAT_RMAPBT;
+	if (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_REFLINK)
+		features |= XFS_FEAT_REFLINK;
+	if (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_INOBTCNT)
+		features |= XFS_FEAT_INOBTCNT;
+	if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_FTYPE)
+		features |= XFS_FEAT_FTYPE;
+	if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_SPINODES)
+		features |= XFS_FEAT_SPINODES;
+	if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_META_UUID)
+		features |= XFS_FEAT_META_UUID;
+	if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_BIGTIME)
+		features |= XFS_FEAT_BIGTIME;
+	if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR)
+		features |= XFS_FEAT_NEEDSREPAIR;
+	return features;
+}
+
 /* Check all the superblock fields we care about when reading one in. */
 STATIC int
 xfs_validate_sb_read(
 	struct xfs_mount	*mp,
 	struct xfs_sb		*sbp)
 {
-	if (XFS_SB_VERSION_NUM(sbp) != XFS_SB_VERSION_5)
+	if (!xfs_sb_is_v5(sbp))
 		return 0;
 
 	/*
@@ -56,7 +153,7 @@ xfs_validate_sb_read(
 "Superblock has unknown read-only compatible features (0x%x) enabled.",
 			(sbp->sb_features_ro_compat &
 					XFS_SB_FEAT_RO_COMPAT_UNKNOWN));
-		if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
+		if (!xfs_is_readonly(mp)) {
 			xfs_warn(mp,
 "Attempted to mount read-only compatible filesystem read-write.");
 			xfs_warn(mp,
@@ -95,7 +192,7 @@ xfs_validate_sb_write(
 	 * secondary superblocks, so allow this usage to continue because
 	 * we never read counters from such superblocks.
 	 */
-	if (XFS_BUF_ADDR(bp) == XFS_SB_DADDR && !sbp->sb_inprogress &&
+	if (xfs_buf_daddr(bp) == XFS_SB_DADDR && !sbp->sb_inprogress &&
 	    (sbp->sb_fdblocks > sbp->sb_dblocks ||
 	     !xfs_verify_icount(mp, sbp->sb_icount) ||
 	     sbp->sb_ifree > sbp->sb_icount)) {
@@ -103,7 +200,7 @@ xfs_validate_sb_write(
 		return -EFSCORRUPTED;
 	}
 
-	if (XFS_SB_VERSION_NUM(sbp) != XFS_SB_VERSION_5)
+	if (!xfs_sb_is_v5(sbp))
 		return 0;
 
 	/*
@@ -162,6 +259,7 @@ xfs_validate_sb_common(
 	struct xfs_dsb		*dsb = bp->b_addr;
 	uint32_t		agcount = 0;
 	uint32_t		rem;
+	bool			has_dalign;
 
 	if (!xfs_verify_magic(bp, dsb->sb_magicnum)) {
 		xfs_warn(mp, "bad magic number");
@@ -173,25 +271,30 @@ xfs_validate_sb_common(
 		return -EWRONGFS;
 	}
 
-	if (xfs_sb_version_has_pquotino(sbp)) {
+	/*
+	 * Validate feature flags and state
+	 */
+	if (xfs_sb_is_v5(sbp)) {
+		if (sbp->sb_blocksize < XFS_MIN_CRC_BLOCKSIZE) {
+			xfs_notice(mp,
+"Block size (%u bytes) too small for Version 5 superblock (minimum %d bytes)",
+				sbp->sb_blocksize, XFS_MIN_CRC_BLOCKSIZE);
+			return -EFSCORRUPTED;
+		}
+
+		/* V5 has a separate project quota inode */
 		if (sbp->sb_qflags & (XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD)) {
 			xfs_notice(mp,
 			   "Version 5 of Super block has XFS_OQUOTA bits.");
 			return -EFSCORRUPTED;
 		}
-	} else if (sbp->sb_qflags & (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD |
-				XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) {
-			xfs_notice(mp,
-"Superblock earlier than Version 5 has XFS_{P|G}QUOTA_{ENFD|CHKD} bits.");
-			return -EFSCORRUPTED;
-	}
 
 		/*
 		 * Full inode chunks must be aligned to inode chunk size when
 		 * sparse inodes are enabled to support the sparse chunk
 		 * allocation algorithm and prevent overlapping inode records.
 		 */
-	if (xfs_sb_version_hassparseinodes(sbp)) {
+		if (sbp->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_SPINODES) {
 			uint32_t	align;
 
 			align = XFS_INODES_PER_CHUNK * sbp->sb_inodesize
@@ -203,6 +306,12 @@ xfs_validate_sb_common(
 				return -EINVAL;
 			}
 		}
+	} else if (sbp->sb_qflags & (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD |
+				XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) {
+			xfs_notice(mp,
+"Superblock earlier than Version 5 has XFS_{P|G}QUOTA_{ENFD|CHKD} bits.");
+			return -EFSCORRUPTED;
+	}
 
 	if (unlikely(
 	    sbp->sb_logstart == 0 && mp->m_logdev_targp == mp->m_ddev_targp)) {
@@ -303,7 +412,8 @@ xfs_validate_sb_common(
 	 * Either (sb_unit and !hasdalign) or (!sb_unit and hasdalign)
 	 * would imply the image is corrupted.
 	 */
-	if (!!sbp->sb_unit ^ xfs_sb_version_hasdalign(sbp)) {
+	has_dalign = sbp->sb_versionnum & XFS_SB_VERSION_DALIGNBIT;
+	if (!!sbp->sb_unit ^ has_dalign) {
 		xfs_notice(mp, "SB stripe alignment sanity check failed");
 		return -EFSCORRUPTED;
 	}
@@ -312,12 +422,6 @@ xfs_validate_sb_common(
 			XFS_FSB_TO_B(mp, sbp->sb_width), 0, false))
 		return -EFSCORRUPTED;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb) &&
-	    sbp->sb_blocksize < XFS_MIN_CRC_BLOCKSIZE) {
-		xfs_notice(mp, "v5 SB sanity check failed");
-		return -EFSCORRUPTED;
-	}
-
 	/*
 	 * Currently only very few inode sizes are supported.
 	 */
@@ -361,7 +465,7 @@ xfs_sb_quota_from_disk(struct xfs_sb *sbp)
 	 * We need to do these manipilations only if we are working
 	 * with an older version of on-disk superblock.
 	 */
-	if (xfs_sb_version_has_pquotino(sbp))
+	if (xfs_sb_is_v5(sbp))
 		return;
 
 	if (sbp->sb_qflags & XFS_OQUOTA_ENFD)
@@ -454,7 +558,8 @@ __xfs_sb_from_disk(
 	 * sb_meta_uuid is only on disk if it differs from sb_uuid and the
 	 * feature flag is set; if not set we keep it only in memory.
 	 */
-	if (xfs_sb_version_hasmetauuid(to))
+	if (xfs_sb_is_v5(to) &&
+	    (to->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_META_UUID))
 		uuid_copy(&to->sb_meta_uuid, &from->sb_meta_uuid);
 	else
 		uuid_copy(&to->sb_meta_uuid, &from->sb_uuid);
@@ -479,7 +584,12 @@ xfs_sb_quota_to_disk(
 	uint16_t	qflags = from->sb_qflags;
 
 	to->sb_uquotino = cpu_to_be64(from->sb_uquotino);
-	if (xfs_sb_version_has_pquotino(from)) {
+
+	/*
+	 * The in-memory superblock quota state matches the v5 on-disk format so
+	 * just write them out and return
+	 */
+	if (xfs_sb_is_v5(from)) {
 		to->sb_qflags = cpu_to_be16(from->sb_qflags);
 		to->sb_gquotino = cpu_to_be64(from->sb_gquotino);
 		to->sb_pquotino = cpu_to_be64(from->sb_pquotino);
@@ -487,9 +597,9 @@ xfs_sb_quota_to_disk(
 	}
 
 	/*
-	 * The in-core version of sb_qflags do not have XFS_OQUOTA_*
-	 * flags, whereas the on-disk version does.  So, convert incore
-	 * XFS_{PG}QUOTA_* flags to on-disk XFS_OQUOTA_* flags.
+	 * For older superblocks (v4), the in-core version of sb_qflags do not
+	 * have XFS_OQUOTA_* flags, whereas the on-disk version does.  So,
+	 * convert incore XFS_{PG}QUOTA_* flags to on-disk XFS_OQUOTA_* flags.
 	 */
 	qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD |
 			XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD);
@@ -589,7 +699,9 @@ xfs_sb_to_disk(
 	to->sb_features2 = cpu_to_be32(from->sb_features2);
 	to->sb_bad_features2 = cpu_to_be32(from->sb_bad_features2);
 
-	if (xfs_sb_version_hascrc(from)) {
+	if (!xfs_sb_is_v5(from))
+		return;
+
 	to->sb_features_compat = cpu_to_be32(from->sb_features_compat);
 	to->sb_features_ro_compat =
 			cpu_to_be32(from->sb_features_ro_compat);
@@ -599,10 +711,9 @@ xfs_sb_to_disk(
 			cpu_to_be32(from->sb_features_log_incompat);
 	to->sb_spino_align = cpu_to_be32(from->sb_spino_align);
 	to->sb_lsn = cpu_to_be64(from->sb_lsn);
-		if (xfs_sb_version_hasmetauuid(from))
+	if (from->sb_features_incompat & XFS_SB_FEAT_INCOMPAT_META_UUID)
 		uuid_copy(&to->sb_meta_uuid, &from->sb_meta_uuid);
 }
-}
 
 /*
  * If the superblock has the CRC feature bit set or the CRC field is non-null,
@@ -636,8 +747,8 @@ xfs_sb_read_verify(
 
 		if (!xfs_buf_verify_cksum(bp, XFS_SB_CRC_OFF)) {
 			/* Only fail bad secondaries on a known V5 filesystem */
-			if (bp->b_bn == XFS_SB_DADDR ||
-			    xfs_sb_version_hascrc(&mp->m_sb)) {
+			if (xfs_buf_daddr(bp) == XFS_SB_DADDR ||
+			    xfs_has_crc(mp)) {
 				error = -EFSBADCRC;
 				goto out_error;
 			}
@@ -704,7 +815,7 @@ xfs_sb_write_verify(
 	if (error)
 		goto out_error;
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_sb_is_v5(&sb))
 		return;
 
 	if (bip)
@@ -801,7 +912,7 @@ xfs_log_sb(
 	 * unclean shutdown, this will be corrected by log recovery rebuilding
 	 * the counters from the AGF block counts.
 	 */
-	if (xfs_sb_version_haslazysbcount(&mp->m_sb)) {
+	if (xfs_has_lazysbcount(mp)) {
 		mp->m_sb.sb_icount = percpu_counter_sum(&mp->m_icount);
 		mp->m_sb.sb_ifree = percpu_counter_sum(&mp->m_ifree);
 		mp->m_sb.sb_fdblocks = percpu_counter_sum(&mp->m_fdblocks);
@@ -950,10 +1061,12 @@ out:
 
 void
 xfs_fs_geometry(
-	struct xfs_sb		*sbp,
+	struct xfs_mount	*mp,
 	struct xfs_fsop_geom	*geo,
 	int			struct_version)
 {
+	struct xfs_sb		*sbp = &mp->m_sb;
+
 	memset(geo, 0, sizeof(struct xfs_fsop_geom));
 
 	geo->blocksize = sbp->sb_blocksize;
@@ -984,51 +1097,51 @@ xfs_fs_geometry(
 	geo->flags = XFS_FSOP_GEOM_FLAGS_NLINK |
 		     XFS_FSOP_GEOM_FLAGS_DIRV2 |
 		     XFS_FSOP_GEOM_FLAGS_EXTFLG;
-	if (xfs_sb_version_hasattr(sbp))
+	if (xfs_has_attr(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_ATTR;
-	if (xfs_sb_version_hasquota(sbp))
+	if (xfs_has_quota(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_QUOTA;
-	if (xfs_sb_version_hasalign(sbp))
+	if (xfs_has_align(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_IALIGN;
-	if (xfs_sb_version_hasdalign(sbp))
+	if (xfs_has_dalign(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_DALIGN;
-	if (xfs_sb_version_hassector(sbp))
-		geo->flags |= XFS_FSOP_GEOM_FLAGS_SECTOR;
-	if (xfs_sb_version_hasasciici(sbp))
+	if (xfs_has_asciici(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_DIRV2CI;
-	if (xfs_sb_version_haslazysbcount(sbp))
+	if (xfs_has_lazysbcount(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_LAZYSB;
-	if (xfs_sb_version_hasattr2(sbp))
+	if (xfs_has_attr2(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_ATTR2;
-	if (xfs_sb_version_hasprojid32bit(sbp))
+	if (xfs_has_projid32(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_PROJID32;
-	if (xfs_sb_version_hascrc(sbp))
+	if (xfs_has_crc(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_V5SB;
-	if (xfs_sb_version_hasftype(sbp))
+	if (xfs_has_ftype(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_FTYPE;
-	if (xfs_sb_version_hasfinobt(sbp))
+	if (xfs_has_finobt(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_FINOBT;
-	if (xfs_sb_version_hassparseinodes(sbp))
+	if (xfs_has_sparseinodes(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_SPINODES;
-	if (xfs_sb_version_hasrmapbt(sbp))
+	if (xfs_has_rmapbt(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_RMAPBT;
-	if (xfs_sb_version_hasreflink(sbp))
+	if (xfs_has_reflink(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_REFLINK;
-	if (xfs_sb_version_hasbigtime(sbp))
+	if (xfs_has_bigtime(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_BIGTIME;
-	if (xfs_sb_version_hasinobtcounts(sbp))
+	if (xfs_has_inobtcounts(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_INOBTCNT;
-	if (xfs_sb_version_hassector(sbp))
+	if (xfs_has_sector(mp)) {
+		geo->flags |= XFS_FSOP_GEOM_FLAGS_SECTOR;
 		geo->logsectsize = sbp->sb_logsectsize;
-	else
+	} else {
 		geo->logsectsize = BBSIZE;
+	}
 	geo->rtsectsize = sbp->sb_blocksize;
 	geo->dirblocksize = xfs_dir2_dirblock_bytes(sbp);
 
 	if (struct_version < 4)
 		return;
 
-	if (xfs_sb_version_haslogv2(sbp))
+	if (xfs_has_logv2(mp))
 		geo->flags |= XFS_FSOP_GEOM_FLAGS_LOGV2;
 
 	geo->logsunit = sbp->sb_logsunit;

fs/xfs/libxfs/xfs_sb.h

@@ -20,11 +20,13 @@ extern void	xfs_sb_mount_common(struct xfs_mount *mp, struct xfs_sb *sbp);
 extern void	xfs_sb_from_disk(struct xfs_sb *to, struct xfs_dsb *from);
 extern void	xfs_sb_to_disk(struct xfs_dsb *to, struct xfs_sb *from);
 extern void	xfs_sb_quota_from_disk(struct xfs_sb *sbp);
+extern bool	xfs_sb_good_version(struct xfs_sb *sbp);
+extern uint64_t	xfs_sb_version_to_features(struct xfs_sb *sbp);
 
 extern int	xfs_update_secondary_sbs(struct xfs_mount *mp);
 
 #define XFS_FS_GEOM_MAX_STRUCT_VER	(4)
-extern void	xfs_fs_geometry(struct xfs_sb *sbp, struct xfs_fsop_geom *geo,
+extern void	xfs_fs_geometry(struct xfs_mount *mp, struct xfs_fsop_geom *geo,
 				int struct_version);
 extern int	xfs_sb_read_secondary(struct xfs_mount *mp,
 				struct xfs_trans *tp, xfs_agnumber_t agno,

fs/xfs/libxfs/xfs_symlink_remote.c

@@ -42,7 +42,7 @@ xfs_symlink_hdr_set(
 {
 	struct xfs_dsymlink_hdr	*dsl = bp->b_addr;
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return 0;
 
 	memset(dsl, 0, sizeof(struct xfs_dsymlink_hdr));
@@ -51,7 +51,7 @@ xfs_symlink_hdr_set(
 	dsl->sl_bytes = cpu_to_be32(size);
 	uuid_copy(&dsl->sl_uuid, &mp->m_sb.sb_meta_uuid);
 	dsl->sl_owner = cpu_to_be64(ino);
-	dsl->sl_blkno = cpu_to_be64(bp->b_bn);
+	dsl->sl_blkno = cpu_to_be64(xfs_buf_daddr(bp));
 	bp->b_ops = &xfs_symlink_buf_ops;
 
 	return sizeof(struct xfs_dsymlink_hdr);
@@ -89,13 +89,13 @@ xfs_symlink_verify(
 	struct xfs_mount	*mp = bp->b_mount;
 	struct xfs_dsymlink_hdr	*dsl = bp->b_addr;
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return __this_address;
 	if (!xfs_verify_magic(bp, dsl->sl_magic))
 		return __this_address;
 	if (!uuid_equal(&dsl->sl_uuid, &mp->m_sb.sb_meta_uuid))
 		return __this_address;
-	if (bp->b_bn != be64_to_cpu(dsl->sl_blkno))
+	if (xfs_buf_daddr(bp) != be64_to_cpu(dsl->sl_blkno))
 		return __this_address;
 	if (be32_to_cpu(dsl->sl_offset) +
 				be32_to_cpu(dsl->sl_bytes) >= XFS_SYMLINK_MAXLEN)
@@ -116,7 +116,7 @@ xfs_symlink_read_verify(
 	xfs_failaddr_t	fa;
 
 	/* no verification of non-crc buffers */
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	if (!xfs_buf_verify_cksum(bp, XFS_SYMLINK_CRC_OFF))
@@ -137,7 +137,7 @@ xfs_symlink_write_verify(
 	xfs_failaddr_t		fa;
 
 	/* no verification of non-crc buffers */
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	fa = xfs_symlink_verify(bp);
@@ -173,7 +173,7 @@ xfs_symlink_local_to_remote(
 
 	xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SYMLINK_BUF);
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (!xfs_has_crc(mp)) {
 		bp->b_ops = NULL;
 		memcpy(bp->b_addr, ifp->if_u1.if_data, ifp->if_bytes);
 		xfs_trans_log_buf(tp, bp, 0, ifp->if_bytes - 1);

fs/xfs/libxfs/xfs_trans_inode.c

@@ -136,7 +136,7 @@ xfs_trans_log_inode(
 	 * to upgrade this inode to bigtime format, do so now.
 	 */
 	if ((flags & (XFS_ILOG_CORE | XFS_ILOG_TIMESTAMP)) &&
-	    xfs_sb_version_hasbigtime(&ip->i_mount->m_sb) &&
+	    xfs_has_bigtime(ip->i_mount) &&
 	    !xfs_inode_has_bigtime(ip)) {
 		ip->i_diflags2 |= XFS_DIFLAG2_BIGTIME;
 		flags |= XFS_ILOG_CORE;

fs/xfs/libxfs/xfs_trans_resv.c

@@ -71,9 +71,9 @@ xfs_allocfree_log_count(
 	uint		blocks;
 
 	blocks = num_ops * 2 * (2 * mp->m_ag_maxlevels - 1);
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (xfs_has_rmapbt(mp))
 		blocks += num_ops * (2 * mp->m_rmap_maxlevels - 1);
-	if (xfs_sb_version_hasreflink(&mp->m_sb))
+	if (xfs_has_reflink(mp))
 		blocks += num_ops * (2 * mp->m_refc_maxlevels - 1);
 
 	return blocks;
@@ -155,7 +155,7 @@ STATIC uint
 xfs_calc_finobt_res(
 	struct xfs_mount	*mp)
 {
-	if (!xfs_sb_version_hasfinobt(&mp->m_sb))
+	if (!xfs_has_finobt(mp))
 		return 0;
 
 	return xfs_calc_inobt_res(mp);
@@ -187,7 +187,7 @@ xfs_calc_inode_chunk_res(
 			       XFS_FSB_TO_B(mp, 1));
 	if (alloc) {
 		/* icreate tx uses ordered buffers */
-		if (xfs_sb_version_has_v3inode(&mp->m_sb))
+		if (xfs_has_v3inodes(mp))
 			return res;
 		size = XFS_FSB_TO_B(mp, 1);
 	}
@@ -268,7 +268,7 @@ xfs_calc_write_reservation(
 	     xfs_calc_buf_res(3, mp->m_sb.sb_sectsize) +
 	     xfs_calc_buf_res(xfs_allocfree_log_count(mp, 2), blksz);
 
-	if (xfs_sb_version_hasrealtime(&mp->m_sb)) {
+	if (xfs_has_realtime(mp)) {
 		t2 = xfs_calc_inode_res(mp, 1) +
 		     xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK),
 				     blksz) +
@@ -317,7 +317,7 @@ xfs_calc_itruncate_reservation(
 	t2 = xfs_calc_buf_res(9, mp->m_sb.sb_sectsize) +
 	     xfs_calc_buf_res(xfs_allocfree_log_count(mp, 4), blksz);
 
-	if (xfs_sb_version_hasrealtime(&mp->m_sb)) {
+	if (xfs_has_realtime(mp)) {
 		t3 = xfs_calc_buf_res(5, mp->m_sb.sb_sectsize) +
 		     xfs_calc_buf_res(xfs_rtalloc_log_count(mp, 2), blksz) +
 		     xfs_calc_buf_res(xfs_allocfree_log_count(mp, 2), blksz);
@@ -798,29 +798,6 @@ xfs_calc_qm_dqalloc_reservation(
 			XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB) - 1);
 }
 
-/*
- * Turning off quotas.
- *    the quota off logitems: sizeof(struct xfs_qoff_logitem) * 2
- *    the superblock for the quota flags: sector size
- */
-STATIC uint
-xfs_calc_qm_quotaoff_reservation(
-	struct xfs_mount	*mp)
-{
-	return sizeof(struct xfs_qoff_logitem) * 2 +
-		xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
-}
-
-/*
- * End of turning off quotas.
- *    the quota off logitems: sizeof(struct xfs_qoff_logitem) * 2
- */
-STATIC uint
-xfs_calc_qm_quotaoff_end_reservation(void)
-{
-	return sizeof(struct xfs_qoff_logitem) * 2;
-}
-
 /*
  * Syncing the incore super block changes to disk.
  *     the super block to reflect the changes: sector size
@@ -842,14 +819,14 @@ xfs_trans_resv_calc(
 	 * require a permanent reservation on space.
 	 */
 	resp->tr_write.tr_logres = xfs_calc_write_reservation(mp);
-	if (xfs_sb_version_hasreflink(&mp->m_sb))
+	if (xfs_has_reflink(mp))
 		resp->tr_write.tr_logcount = XFS_WRITE_LOG_COUNT_REFLINK;
 	else
 		resp->tr_write.tr_logcount = XFS_WRITE_LOG_COUNT;
 	resp->tr_write.tr_logflags |= XFS_TRANS_PERM_LOG_RES;
 
 	resp->tr_itruncate.tr_logres = xfs_calc_itruncate_reservation(mp);
-	if (xfs_sb_version_hasreflink(&mp->m_sb))
+	if (xfs_has_reflink(mp))
 		resp->tr_itruncate.tr_logcount =
 				XFS_ITRUNCATE_LOG_COUNT_REFLINK;
 	else
@@ -910,7 +887,7 @@ xfs_trans_resv_calc(
 	resp->tr_growrtalloc.tr_logflags |= XFS_TRANS_PERM_LOG_RES;
 
 	resp->tr_qm_dqalloc.tr_logres = xfs_calc_qm_dqalloc_reservation(mp);
-	if (xfs_sb_version_hasreflink(&mp->m_sb))
+	if (xfs_has_reflink(mp))
 		resp->tr_qm_dqalloc.tr_logcount = XFS_WRITE_LOG_COUNT_REFLINK;
 	else
 		resp->tr_qm_dqalloc.tr_logcount = XFS_WRITE_LOG_COUNT;
@@ -923,13 +900,6 @@ xfs_trans_resv_calc(
 	resp->tr_qm_setqlim.tr_logres = xfs_calc_qm_setqlim_reservation();
 	resp->tr_qm_setqlim.tr_logcount = XFS_DEFAULT_LOG_COUNT;
 
-	resp->tr_qm_quotaoff.tr_logres = xfs_calc_qm_quotaoff_reservation(mp);
-	resp->tr_qm_quotaoff.tr_logcount = XFS_DEFAULT_LOG_COUNT;
-
-	resp->tr_qm_equotaoff.tr_logres =
-		xfs_calc_qm_quotaoff_end_reservation();
-	resp->tr_qm_equotaoff.tr_logcount = XFS_DEFAULT_LOG_COUNT;
-
 	resp->tr_sb.tr_logres = xfs_calc_sb_reservation(mp);
 	resp->tr_sb.tr_logcount = XFS_DEFAULT_LOG_COUNT;
 

fs/xfs/libxfs/xfs_trans_resv.h

@@ -46,8 +46,6 @@ struct xfs_trans_resv {
 	struct xfs_trans_res	tr_growrtfree;	/* grow realtime freeing */
 	struct xfs_trans_res	tr_qm_setqlim;	/* adjust quota limits */
 	struct xfs_trans_res	tr_qm_dqalloc;	/* allocate quota on disk */
-	struct xfs_trans_res	tr_qm_quotaoff;	/* turn quota off */
-	struct xfs_trans_res	tr_qm_equotaoff;/* end of turn quota off */
 	struct xfs_trans_res	tr_sb;		/* modify superblock */
 	struct xfs_trans_res	tr_fsyncts;	/* update timestamps on fsync */
 };

fs/xfs/libxfs/xfs_trans_space.h

@@ -57,8 +57,7 @@
 	XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK)
 #define	XFS_IALLOC_SPACE_RES(mp)	\
 	(M_IGEO(mp)->ialloc_blks + \
-	 ((xfs_sb_version_hasfinobt(&mp->m_sb) ? 2 : 1) * \
-	  M_IGEO(mp)->inobt_maxlevels))
+	 ((xfs_has_finobt(mp) ? 2 : 1) * M_IGEO(mp)->inobt_maxlevels))
 
 /*
  * Space reservation values for various transactions.
@@ -94,8 +93,7 @@
 #define	XFS_SYMLINK_SPACE_RES(mp,nl,b)	\
 	(XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b))
 #define XFS_IFREE_SPACE_RES(mp)		\
-	(xfs_sb_version_hasfinobt(&mp->m_sb) ? \
-			M_IGEO(mp)->inobt_maxlevels : 0)
+	(xfs_has_finobt(mp) ? M_IGEO(mp)->inobt_maxlevels : 0)
 
 
 #endif	/* __XFS_TRANS_SPACE_H__ */

fs/xfs/libxfs/xfs_types.c

@@ -169,7 +169,7 @@ xfs_internal_inum(
 	xfs_ino_t		ino)
 {
 	return ino == mp->m_sb.sb_rbmino || ino == mp->m_sb.sb_rsumino ||
-		(xfs_sb_version_hasquota(&mp->m_sb) &&
+		(xfs_has_quota(mp) &&
 		 xfs_is_quota_inode(&mp->m_sb, ino));
 }
 

fs/xfs/libxfs/xfs_types.h

@@ -87,6 +87,11 @@ typedef void *		xfs_failaddr_t;
 #define	XFS_ATTR_FORK	1
 #define	XFS_COW_FORK	2
 
+#define XFS_WHICHFORK_STRINGS \
+	{ XFS_DATA_FORK, 	"data" }, \
+	{ XFS_ATTR_FORK,	"attr" }, \
+	{ XFS_COW_FORK,		"cow" }
+
 /*
  * Min numbers of data/attr fork btree root pointers.
  */

fs/xfs/scrub/agheader.c

@@ -36,7 +36,7 @@ xchk_superblock_xref(
 
 	agbno = XFS_SB_BLOCK(mp);
 
-	error = xchk_ag_init(sc, agno, &sc->sa);
+	error = xchk_ag_init_existing(sc, agno, &sc->sa);
 	if (!xchk_xref_process_error(sc, agno, agbno, &error))
 		return;
 
@@ -63,6 +63,7 @@ xchk_superblock(
 	struct xfs_mount	*mp = sc->mp;
 	struct xfs_buf		*bp;
 	struct xfs_dsb		*sb;
+	struct xfs_perag	*pag;
 	xfs_agnumber_t		agno;
 	uint32_t		v2_ok;
 	__be32			features_mask;
@@ -73,6 +74,15 @@ xchk_superblock(
 	if (agno == 0)
 		return 0;
 
+	/*
+	 * Grab an active reference to the perag structure.  If we can't get
+	 * it, we're racing with something that's tearing down the AG, so
+	 * signal that the AG no longer exists.
+	 */
+	pag = xfs_perag_get(mp, agno);
+	if (!pag)
+		return -ENOENT;
+
 	error = xfs_sb_read_secondary(mp, sc->tp, agno, &bp);
 	/*
 	 * The superblock verifier can return several different error codes
@@ -92,7 +102,7 @@ xchk_superblock(
 		break;
 	}
 	if (!xchk_process_error(sc, agno, XFS_SB_BLOCK(mp), &error))
-		return error;
+		goto out_pag;
 
 	sb = bp->b_addr;
 
@@ -248,7 +258,7 @@ xchk_superblock(
 			xchk_block_set_corrupt(sc, bp);
 	} else {
 		v2_ok = XFS_SB_VERSION2_OKBITS;
-		if (XFS_SB_VERSION_NUM(&mp->m_sb) >= XFS_SB_VERSION_5)
+		if (xfs_sb_is_v5(&mp->m_sb))
 			v2_ok |= XFS_SB_VERSION2_CRCBIT;
 
 		if (!!(sb->sb_features2 & cpu_to_be32(~v2_ok)))
@@ -273,7 +283,7 @@ xchk_superblock(
 	    (cpu_to_be32(mp->m_sb.sb_features2) & features_mask))
 		xchk_block_set_corrupt(sc, bp);
 
-	if (!xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (!xfs_has_crc(mp)) {
 		/* all v5 fields must be zero */
 		if (memchr_inv(&sb->sb_features_compat, 0,
 				sizeof(struct xfs_dsb) -
@@ -324,7 +334,7 @@ xchk_superblock(
 		/* Don't care about sb_lsn */
 	}
 
-	if (xfs_sb_version_hasmetauuid(&mp->m_sb)) {
+	if (xfs_has_metauuid(mp)) {
 		/* The metadata UUID must be the same for all supers */
 		if (!uuid_equal(&sb->sb_meta_uuid, &mp->m_sb.sb_meta_uuid))
 			xchk_block_set_corrupt(sc, bp);
@@ -336,7 +346,8 @@ xchk_superblock(
 		xchk_block_set_corrupt(sc, bp);
 
 	xchk_superblock_xref(sc, bp);
-
+out_pag:
+	xfs_perag_put(pag);
 	return error;
 }
 
@@ -346,7 +357,7 @@ xchk_superblock(
 STATIC int
 xchk_agf_record_bno_lengths(
 	struct xfs_btree_cur		*cur,
-	struct xfs_alloc_rec_incore	*rec,
+	const struct xfs_alloc_rec_incore *rec,
 	void				*priv)
 {
 	xfs_extlen_t			*blocks = priv;
@@ -419,7 +430,7 @@ xchk_agf_xref_btreeblks(
 	int			error;
 
 	/* agf_btreeblks didn't exist before lazysbcount */
-	if (!xfs_sb_version_haslazysbcount(&sc->mp->m_sb))
+	if (!xfs_has_lazysbcount(sc->mp))
 		return;
 
 	/* Check agf_rmap_blocks; set up for agf_btreeblks check */
@@ -438,7 +449,7 @@ xchk_agf_xref_btreeblks(
 	 * No rmap cursor; we can't xref if we have the rmapbt feature.
 	 * We also can't do it if we're missing the free space btree cursors.
 	 */
-	if ((xfs_sb_version_hasrmapbt(&mp->m_sb) && !sc->sa.rmap_cur) ||
+	if ((xfs_has_rmapbt(mp) && !sc->sa.rmap_cur) ||
 	    !sc->sa.bno_cur || !sc->sa.cnt_cur)
 		return;
 
@@ -527,6 +538,7 @@ xchk_agf(
 	xchk_buffer_recheck(sc, sc->sa.agf_bp);
 
 	agf = sc->sa.agf_bp->b_addr;
+	pag = sc->sa.pag;
 
 	/* Check the AG length */
 	eoag = be32_to_cpu(agf->agf_length);
@@ -550,7 +562,7 @@ xchk_agf(
 	if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
 		xchk_block_set_corrupt(sc, sc->sa.agf_bp);
 
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
+	if (xfs_has_rmapbt(mp)) {
 		agbno = be32_to_cpu(agf->agf_roots[XFS_BTNUM_RMAP]);
 		if (!xfs_verify_agbno(mp, agno, agbno))
 			xchk_block_set_corrupt(sc, sc->sa.agf_bp);
@@ -560,7 +572,7 @@ xchk_agf(
 			xchk_block_set_corrupt(sc, sc->sa.agf_bp);
 	}
 
-	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+	if (xfs_has_reflink(mp)) {
 		agbno = be32_to_cpu(agf->agf_refcount_root);
 		if (!xfs_verify_agbno(mp, agno, agbno))
 			xchk_block_set_corrupt(sc, sc->sa.agf_bp);
@@ -582,15 +594,13 @@ xchk_agf(
 		xchk_block_set_corrupt(sc, sc->sa.agf_bp);
 
 	/* Do the incore counters match? */
-	pag = xfs_perag_get(mp, agno);
 	if (pag->pagf_freeblks != be32_to_cpu(agf->agf_freeblks))
 		xchk_block_set_corrupt(sc, sc->sa.agf_bp);
 	if (pag->pagf_flcount != be32_to_cpu(agf->agf_flcount))
 		xchk_block_set_corrupt(sc, sc->sa.agf_bp);
-	if (xfs_sb_version_haslazysbcount(&sc->mp->m_sb) &&
+	if (xfs_has_lazysbcount(sc->mp) &&
 	    pag->pagf_btreeblks != be32_to_cpu(agf->agf_btreeblks))
 		xchk_block_set_corrupt(sc, sc->sa.agf_bp);
-	xfs_perag_put(pag);
 
 	xchk_agf_xref(sc);
 out:
@@ -630,7 +640,7 @@ xchk_agfl_block(
 {
 	struct xchk_agfl_info	*sai = priv;
 	struct xfs_scrub	*sc = sai->sc;
-	xfs_agnumber_t		agno = sc->sa.agno;
+	xfs_agnumber_t		agno = sc->sa.pag->pag_agno;
 
 	if (xfs_verify_agbno(mp, agno, agbno) &&
 	    sai->nr_entries < sai->sz_entries)
@@ -787,7 +797,7 @@ xchk_agi_xref_fiblocks(
 	xfs_agblock_t		blocks;
 	int			error = 0;
 
-	if (!xfs_sb_version_hasinobtcounts(&sc->mp->m_sb))
+	if (!xfs_has_inobtcounts(sc->mp))
 		return;
 
 	if (sc->sa.ino_cur) {
@@ -857,6 +867,7 @@ xchk_agi(
 	xchk_buffer_recheck(sc, sc->sa.agi_bp);
 
 	agi = sc->sa.agi_bp->b_addr;
+	pag = sc->sa.pag;
 
 	/* Check the AG length */
 	eoag = be32_to_cpu(agi->agi_length);
@@ -872,7 +883,7 @@ xchk_agi(
 	if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
 		xchk_block_set_corrupt(sc, sc->sa.agi_bp);
 
-	if (xfs_sb_version_hasfinobt(&mp->m_sb)) {
+	if (xfs_has_finobt(mp)) {
 		agbno = be32_to_cpu(agi->agi_free_root);
 		if (!xfs_verify_agbno(mp, agno, agbno))
 			xchk_block_set_corrupt(sc, sc->sa.agi_bp);
@@ -909,12 +920,10 @@ xchk_agi(
 		xchk_block_set_corrupt(sc, sc->sa.agi_bp);
 
 	/* Do the incore counters match? */
-	pag = xfs_perag_get(mp, agno);
 	if (pag->pagi_count != be32_to_cpu(agi->agi_count))
 		xchk_block_set_corrupt(sc, sc->sa.agi_bp);
 	if (pag->pagi_freecount != be32_to_cpu(agi->agi_freecount))
 		xchk_block_set_corrupt(sc, sc->sa.agi_bp);
-	xfs_perag_put(pag);
 
 	xchk_agi_xref(sc);
 out:

fs/xfs/scrub/agheader_repair.c

@@ -70,7 +70,7 @@ struct xrep_agf_allocbt {
 STATIC int
 xrep_agf_walk_allocbt(
 	struct xfs_btree_cur		*cur,
-	struct xfs_alloc_rec_incore	*rec,
+	const struct xfs_alloc_rec_incore *rec,
 	void				*priv)
 {
 	struct xrep_agf_allocbt		*raa = priv;
@@ -94,7 +94,7 @@ xrep_agf_check_agfl_block(
 {
 	struct xfs_scrub	*sc = priv;
 
-	if (!xfs_verify_agbno(mp, sc->sa.agno, agbno))
+	if (!xfs_verify_agbno(mp, sc->sa.pag->pag_agno, agbno))
 		return -EFSCORRUPTED;
 	return 0;
 }
@@ -164,7 +164,7 @@ xrep_agf_find_btrees(
 		return -EFSCORRUPTED;
 
 	/* We must find the refcountbt root if that feature is enabled. */
-	if (xfs_sb_version_hasreflink(&sc->mp->m_sb) &&
+	if (xfs_has_reflink(sc->mp) &&
 	    !xrep_check_btree_root(sc, &fab[XREP_AGF_REFCOUNTBT]))
 		return -EFSCORRUPTED;
 
@@ -188,12 +188,13 @@ xrep_agf_init_header(
 	memset(agf, 0, BBTOB(agf_bp->b_length));
 	agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC);
 	agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION);
-	agf->agf_seqno = cpu_to_be32(sc->sa.agno);
-	agf->agf_length = cpu_to_be32(xfs_ag_block_count(mp, sc->sa.agno));
+	agf->agf_seqno = cpu_to_be32(sc->sa.pag->pag_agno);
+	agf->agf_length = cpu_to_be32(xfs_ag_block_count(mp,
+							sc->sa.pag->pag_agno));
 	agf->agf_flfirst = old_agf->agf_flfirst;
 	agf->agf_fllast = old_agf->agf_fllast;
 	agf->agf_flcount = old_agf->agf_flcount;
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_has_crc(mp))
 		uuid_copy(&agf->agf_uuid, &mp->m_sb.sb_meta_uuid);
 
 	/* Mark the incore AGF data stale until we're done fixing things. */
@@ -223,7 +224,7 @@ xrep_agf_set_roots(
 	agf->agf_levels[XFS_BTNUM_RMAPi] =
 			cpu_to_be32(fab[XREP_AGF_RMAPBT].height);
 
-	if (xfs_sb_version_hasreflink(&sc->mp->m_sb)) {
+	if (xfs_has_reflink(sc->mp)) {
 		agf->agf_refcount_root =
 				cpu_to_be32(fab[XREP_AGF_REFCOUNTBT].root);
 		agf->agf_refcount_level =
@@ -280,7 +281,7 @@ xrep_agf_calc_from_btrees(
 	agf->agf_btreeblks = cpu_to_be32(btreeblks);
 
 	/* Update the AGF counters from the refcountbt. */
-	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+	if (xfs_has_reflink(mp)) {
 		cur = xfs_refcountbt_init_cursor(mp, sc->tp, agf_bp,
 				sc->sa.pag);
 		error = xfs_btree_count_blocks(cur, &blocks);
@@ -363,16 +364,16 @@ xrep_agf(
 	int				error;
 
 	/* We require the rmapbt to rebuild anything. */
-	if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (!xfs_has_rmapbt(mp))
 		return -EOPNOTSUPP;
 
-	xchk_perag_get(sc->mp, &sc->sa);
 	/*
 	 * Make sure we have the AGF buffer, as scrub might have decided it
 	 * was corrupt after xfs_alloc_read_agf failed with -EFSCORRUPTED.
 	 */
 	error = xfs_trans_read_buf(mp, sc->tp, mp->m_ddev_targp,
-			XFS_AG_DADDR(mp, sc->sa.agno, XFS_AGF_DADDR(mp)),
+			XFS_AG_DADDR(mp, sc->sa.pag->pag_agno,
+						XFS_AGF_DADDR(mp)),
 			XFS_FSS_TO_BB(mp, 1), 0, &agf_bp, NULL);
 	if (error)
 		return error;
@@ -388,7 +389,7 @@ xrep_agf(
 	 * btrees rooted in the AGF.  If the AGFL contents are obviously bad
 	 * then we'll bail out.
 	 */
-	error = xfs_alloc_read_agfl(mp, sc->tp, sc->sa.agno, &agfl_bp);
+	error = xfs_alloc_read_agfl(mp, sc->tp, sc->sa.pag->pag_agno, &agfl_bp);
 	if (error)
 		return error;
 
@@ -442,7 +443,7 @@ struct xrep_agfl {
 STATIC int
 xrep_agfl_walk_rmap(
 	struct xfs_btree_cur	*cur,
-	struct xfs_rmap_irec	*rec,
+	const struct xfs_rmap_irec *rec,
 	void			*priv)
 {
 	struct xrep_agfl	*ra = priv;
@@ -586,7 +587,7 @@ xrep_agfl_init_header(
 	agfl = XFS_BUF_TO_AGFL(agfl_bp);
 	memset(agfl, 0xFF, BBTOB(agfl_bp->b_length));
 	agfl->agfl_magicnum = cpu_to_be32(XFS_AGFL_MAGIC);
-	agfl->agfl_seqno = cpu_to_be32(sc->sa.agno);
+	agfl->agfl_seqno = cpu_to_be32(sc->sa.pag->pag_agno);
 	uuid_copy(&agfl->agfl_uuid, &mp->m_sb.sb_meta_uuid);
 
 	/*
@@ -599,7 +600,8 @@ xrep_agfl_init_header(
 	for_each_xbitmap_extent(br, n, agfl_extents) {
 		agbno = XFS_FSB_TO_AGBNO(mp, br->start);
 
-		trace_xrep_agfl_insert(mp, sc->sa.agno, agbno, br->len);
+		trace_xrep_agfl_insert(mp, sc->sa.pag->pag_agno, agbno,
+				br->len);
 
 		while (br->len > 0 && fl_off < flcount) {
 			agfl_bno[fl_off] = cpu_to_be32(agbno);
@@ -638,10 +640,9 @@ xrep_agfl(
 	int			error;
 
 	/* We require the rmapbt to rebuild anything. */
-	if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (!xfs_has_rmapbt(mp))
 		return -EOPNOTSUPP;
 
-	xchk_perag_get(sc->mp, &sc->sa);
 	xbitmap_init(&agfl_extents);
 
 	/*
@@ -649,7 +650,8 @@ xrep_agfl(
 	 * nothing wrong with the AGF, but all the AG header repair functions
 	 * have this chicken-and-egg problem.
 	 */
-	error = xfs_alloc_read_agf(mp, sc->tp, sc->sa.agno, 0, &agf_bp);
+	error = xfs_alloc_read_agf(mp, sc->tp, sc->sa.pag->pag_agno, 0,
+			&agf_bp);
 	if (error)
 		return error;
 
@@ -658,7 +660,8 @@ xrep_agfl(
 	 * was corrupt after xfs_alloc_read_agfl failed with -EFSCORRUPTED.
 	 */
 	error = xfs_trans_read_buf(mp, sc->tp, mp->m_ddev_targp,
-			XFS_AG_DADDR(mp, sc->sa.agno, XFS_AGFL_DADDR(mp)),
+			XFS_AG_DADDR(mp, sc->sa.pag->pag_agno,
+						XFS_AGFL_DADDR(mp)),
 			XFS_FSS_TO_BB(mp, 1), 0, &agfl_bp, NULL);
 	if (error)
 		return error;
@@ -723,7 +726,8 @@ xrep_agi_find_btrees(
 	int				error;
 
 	/* Read the AGF. */
-	error = xfs_alloc_read_agf(mp, sc->tp, sc->sa.agno, 0, &agf_bp);
+	error = xfs_alloc_read_agf(mp, sc->tp, sc->sa.pag->pag_agno, 0,
+			&agf_bp);
 	if (error)
 		return error;
 
@@ -737,7 +741,7 @@ xrep_agi_find_btrees(
 		return -EFSCORRUPTED;
 
 	/* We must find the finobt root if that feature is enabled. */
-	if (xfs_sb_version_hasfinobt(&mp->m_sb) &&
+	if (xfs_has_finobt(mp) &&
 	    !xrep_check_btree_root(sc, &fab[XREP_AGI_FINOBT]))
 		return -EFSCORRUPTED;
 
@@ -761,11 +765,12 @@ xrep_agi_init_header(
 	memset(agi, 0, BBTOB(agi_bp->b_length));
 	agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC);
 	agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION);
-	agi->agi_seqno = cpu_to_be32(sc->sa.agno);
-	agi->agi_length = cpu_to_be32(xfs_ag_block_count(mp, sc->sa.agno));
+	agi->agi_seqno = cpu_to_be32(sc->sa.pag->pag_agno);
+	agi->agi_length = cpu_to_be32(xfs_ag_block_count(mp,
+							sc->sa.pag->pag_agno));
 	agi->agi_newino = cpu_to_be32(NULLAGINO);
 	agi->agi_dirino = cpu_to_be32(NULLAGINO);
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_has_crc(mp))
 		uuid_copy(&agi->agi_uuid, &mp->m_sb.sb_meta_uuid);
 
 	/* We don't know how to fix the unlinked list yet. */
@@ -787,7 +792,7 @@ xrep_agi_set_roots(
 	agi->agi_root = cpu_to_be32(fab[XREP_AGI_INOBT].root);
 	agi->agi_level = cpu_to_be32(fab[XREP_AGI_INOBT].height);
 
-	if (xfs_sb_version_hasfinobt(&sc->mp->m_sb)) {
+	if (xfs_has_finobt(sc->mp)) {
 		agi->agi_free_root = cpu_to_be32(fab[XREP_AGI_FINOBT].root);
 		agi->agi_free_level = cpu_to_be32(fab[XREP_AGI_FINOBT].height);
 	}
@@ -811,7 +816,7 @@ xrep_agi_calc_from_btrees(
 	error = xfs_ialloc_count_inodes(cur, &count, &freecount);
 	if (error)
 		goto err;
-	if (xfs_sb_version_hasinobtcounts(&mp->m_sb)) {
+	if (xfs_has_inobtcounts(mp)) {
 		xfs_agblock_t	blocks;
 
 		error = xfs_btree_count_blocks(cur, &blocks);
@@ -824,8 +829,7 @@ xrep_agi_calc_from_btrees(
 	agi->agi_count = cpu_to_be32(count);
 	agi->agi_freecount = cpu_to_be32(freecount);
 
-	if (xfs_sb_version_hasfinobt(&mp->m_sb) &&
-	    xfs_sb_version_hasinobtcounts(&mp->m_sb)) {
+	if (xfs_has_finobt(mp) && xfs_has_inobtcounts(mp)) {
 		xfs_agblock_t	blocks;
 
 		cur = xfs_inobt_init_cursor(mp, sc->tp, agi_bp,
@@ -893,16 +897,16 @@ xrep_agi(
 	int				error;
 
 	/* We require the rmapbt to rebuild anything. */
-	if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (!xfs_has_rmapbt(mp))
 		return -EOPNOTSUPP;
 
-	xchk_perag_get(sc->mp, &sc->sa);
 	/*
 	 * Make sure we have the AGI buffer, as scrub might have decided it
 	 * was corrupt after xfs_ialloc_read_agi failed with -EFSCORRUPTED.
 	 */
 	error = xfs_trans_read_buf(mp, sc->tp, mp->m_ddev_targp,
-			XFS_AG_DADDR(mp, sc->sa.agno, XFS_AGI_DADDR(mp)),
+			XFS_AG_DADDR(mp, sc->sa.pag->pag_agno,
+						XFS_AGI_DADDR(mp)),
 			XFS_FSS_TO_BB(mp, 1), 0, &agi_bp, NULL);
 	if (error)
 		return error;

fs/xfs/scrub/alloc.c

@@ -91,7 +91,7 @@ xchk_allocbt_xref(
 STATIC int
 xchk_allocbt_rec(
 	struct xchk_btree	*bs,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec *rec)
 {
 	struct xfs_mount	*mp = bs->cur->bc_mp;
 	xfs_agnumber_t		agno = bs->cur->bc_ag.pag->pag_agno;

fs/xfs/scrub/attr.c

@@ -25,11 +25,11 @@
  * reallocating the buffer if necessary.  Buffer contents are not preserved
  * across a reallocation.
  */
-int
+static int
 xchk_setup_xattr_buf(
 	struct xfs_scrub	*sc,
 	size_t			value_size,
-	xfs_km_flags_t		flags)
+	gfp_t			flags)
 {
 	size_t			sz;
 	struct xchk_xattr_buf	*ab = sc->buf;
@@ -57,7 +57,7 @@ xchk_setup_xattr_buf(
 	 * Don't zero the buffer upon allocation to avoid runtime overhead.
 	 * All users must be careful never to read uninitialized contents.
 	 */
-	ab = kmem_alloc_large(sizeof(*ab) + sz, flags);
+	ab = kvmalloc(sizeof(*ab) + sz, flags);
 	if (!ab)
 		return -ENOMEM;
 
@@ -79,7 +79,7 @@ xchk_setup_xattr(
 	 * without the inode lock held, which means we can sleep.
 	 */
 	if (sc->flags & XCHK_TRY_HARDER) {
-		error = xchk_setup_xattr_buf(sc, XATTR_SIZE_MAX, 0);
+		error = xchk_setup_xattr_buf(sc, XATTR_SIZE_MAX, GFP_KERNEL);
 		if (error)
 			return error;
 	}
@@ -138,7 +138,8 @@ xchk_xattr_listent(
 	 * doesn't work, we overload the seen_enough variable to convey
 	 * the error message back to the main scrub function.
 	 */
-	error = xchk_setup_xattr_buf(sx->sc, valuelen, KM_MAYFAIL);
+	error = xchk_setup_xattr_buf(sx->sc, valuelen,
+			GFP_KERNEL | __GFP_RETRY_MAYFAIL);
 	if (error == -ENOMEM)
 		error = -EDEADLOCK;
 	if (error) {
@@ -323,7 +324,8 @@ xchk_xattr_block(
 		return 0;
 
 	/* Allocate memory for block usage checking. */
-	error = xchk_setup_xattr_buf(ds->sc, 0, KM_MAYFAIL);
+	error = xchk_setup_xattr_buf(ds->sc, 0,
+			GFP_KERNEL | __GFP_RETRY_MAYFAIL);
 	if (error == -ENOMEM)
 		return -EDEADLOCK;
 	if (error)
@@ -334,7 +336,7 @@ xchk_xattr_block(
 	bitmap_zero(usedmap, mp->m_attr_geo->blksize);
 
 	/* Check all the padding. */
-	if (xfs_sb_version_hascrc(&ds->sc->mp->m_sb)) {
+	if (xfs_has_crc(ds->sc->mp)) {
 		struct xfs_attr3_leafblock	*leaf = bp->b_addr;
 
 		if (leaf->hdr.pad1 != 0 || leaf->hdr.pad2 != 0 ||

fs/xfs/scrub/attr.h

@@ -65,7 +65,4 @@ xchk_xattr_dstmap(
 			BITS_TO_LONGS(sc->mp->m_attr_geo->blksize);
 }
 
-int xchk_setup_xattr_buf(struct xfs_scrub *sc, size_t value_size,
-		xfs_km_flags_t flags);
-
 #endif	/* __XFS_SCRUB_ATTR_H__ */

fs/xfs/scrub/bitmap.c

@@ -260,7 +260,7 @@ xbitmap_set_btcur_path(
 		xfs_btree_get_block(cur, i, &bp);
 		if (!bp)
 			continue;
-		fsb = XFS_DADDR_TO_FSB(cur->bc_mp, bp->b_bn);
+		fsb = XFS_DADDR_TO_FSB(cur->bc_mp, xfs_buf_daddr(bp));
 		error = xbitmap_set(bitmap, fsb, 1);
 		if (error)
 			return error;
@@ -284,7 +284,7 @@ xbitmap_collect_btblock(
 	if (!bp)
 		return 0;
 
-	fsbno = XFS_DADDR_TO_FSB(cur->bc_mp, bp->b_bn);
+	fsbno = XFS_DADDR_TO_FSB(cur->bc_mp, xfs_buf_daddr(bp));
 	return xbitmap_set(bitmap, fsbno, 1);
 }
 

fs/xfs/scrub/bmap.c

@@ -260,10 +260,10 @@ xchk_bmap_iextent_xref(
 	agbno = XFS_FSB_TO_AGBNO(mp, irec->br_startblock);
 	len = irec->br_blockcount;
 
-	error = xchk_ag_init(info->sc, agno, &info->sc->sa);
+	error = xchk_ag_init_existing(info->sc, agno, &info->sc->sa);
 	if (!xchk_fblock_process_error(info->sc, info->whichfork,
 			irec->br_startoff, &error))
-		return;
+		goto out_free;
 
 	xchk_xref_is_used_space(info->sc, agbno, len);
 	xchk_xref_is_not_inode_chunk(info->sc, agbno, len);
@@ -283,6 +283,7 @@ xchk_bmap_iextent_xref(
 		break;
 	}
 
+out_free:
 	xchk_ag_free(info->sc, &info->sc->sa);
 }
 
@@ -383,7 +384,7 @@ xchk_bmap_iextent(
 STATIC int
 xchk_bmapbt_rec(
 	struct xchk_btree	*bs,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec *rec)
 {
 	struct xfs_bmbt_irec	irec;
 	struct xfs_bmbt_irec	iext_irec;
@@ -400,7 +401,7 @@ xchk_bmapbt_rec(
 	 * Check the owners of the btree blocks up to the level below
 	 * the root since the verifiers don't do that.
 	 */
-	if (xfs_sb_version_hascrc(&bs->cur->bc_mp->m_sb) &&
+	if (xfs_has_crc(bs->cur->bc_mp) &&
 	    bs->cur->bc_ptrs[0] == 1) {
 		for (i = 0; i < bs->cur->bc_nlevels - 1; i++) {
 			block = xfs_btree_get_block(bs->cur, i, &bp);
@@ -473,10 +474,11 @@ struct xchk_bmap_check_rmap_info {
 STATIC int
 xchk_bmap_check_rmap(
 	struct xfs_btree_cur		*cur,
-	struct xfs_rmap_irec		*rec,
+	const struct xfs_rmap_irec	*rec,
 	void				*priv)
 {
 	struct xfs_bmbt_irec		irec;
+	struct xfs_rmap_irec		check_rec;
 	struct xchk_bmap_check_rmap_info	*sbcri = priv;
 	struct xfs_ifork		*ifp;
 	struct xfs_scrub		*sc = sbcri->sc;
@@ -510,28 +512,30 @@ xchk_bmap_check_rmap(
 	 * length, so we have to loop through the bmbt to make sure that the
 	 * entire rmap is covered by bmbt records.
 	 */
+	check_rec = *rec;
 	while (have_map) {
-		if (irec.br_startoff != rec->rm_offset)
+		if (irec.br_startoff != check_rec.rm_offset)
 			xchk_fblock_set_corrupt(sc, sbcri->whichfork,
-					rec->rm_offset);
+					check_rec.rm_offset);
 		if (irec.br_startblock != XFS_AGB_TO_FSB(sc->mp,
-				cur->bc_ag.pag->pag_agno, rec->rm_startblock))
+				cur->bc_ag.pag->pag_agno,
+				check_rec.rm_startblock))
 			xchk_fblock_set_corrupt(sc, sbcri->whichfork,
-					rec->rm_offset);
-		if (irec.br_blockcount > rec->rm_blockcount)
+					check_rec.rm_offset);
+		if (irec.br_blockcount > check_rec.rm_blockcount)
 			xchk_fblock_set_corrupt(sc, sbcri->whichfork,
-					rec->rm_offset);
+					check_rec.rm_offset);
 		if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
 			break;
-		rec->rm_startblock += irec.br_blockcount;
-		rec->rm_offset += irec.br_blockcount;
-		rec->rm_blockcount -= irec.br_blockcount;
-		if (rec->rm_blockcount == 0)
+		check_rec.rm_startblock += irec.br_blockcount;
+		check_rec.rm_offset += irec.br_blockcount;
+		check_rec.rm_blockcount -= irec.br_blockcount;
+		if (check_rec.rm_blockcount == 0)
 			break;
 		have_map = xfs_iext_next_extent(ifp, &sbcri->icur, &irec);
 		if (!have_map)
 			xchk_fblock_set_corrupt(sc, sbcri->whichfork,
-					rec->rm_offset);
+					check_rec.rm_offset);
 	}
 
 out:
@@ -581,7 +585,7 @@ xchk_bmap_check_rmaps(
 	bool			zero_size;
 	int			error;
 
-	if (!xfs_sb_version_hasrmapbt(&sc->mp->m_sb) ||
+	if (!xfs_has_rmapbt(sc->mp) ||
 	    whichfork == XFS_COW_FORK ||
 	    (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT))
 		return 0;
@@ -659,8 +663,7 @@ xchk_bmap(
 		}
 		break;
 	case XFS_ATTR_FORK:
-		if (!xfs_sb_version_hasattr(&mp->m_sb) &&
-		    !xfs_sb_version_hasattr2(&mp->m_sb))
+		if (!xfs_has_attr(mp) && !xfs_has_attr2(mp))
 			xchk_ino_set_corrupt(sc, sc->ip->i_ino);
 		break;
 	default:

fs/xfs/scrub/btree.c

@@ -374,10 +374,10 @@ xchk_btree_check_block_owner(
 
 	init_sa = bs->cur->bc_flags & XFS_BTREE_LONG_PTRS;
 	if (init_sa) {
-		error = xchk_ag_init(bs->sc, agno, &bs->sc->sa);
+		error = xchk_ag_init_existing(bs->sc, agno, &bs->sc->sa);
 		if (!xchk_btree_xref_process_error(bs->sc, bs->cur,
 				level, &error))
-			return error;
+			goto out_free;
 	}
 
 	xchk_xref_is_used_space(bs->sc, agbno, 1);
@@ -393,6 +393,7 @@ xchk_btree_check_block_owner(
 	if (!bs->sc->sa.rmap_cur && btnum == XFS_BTNUM_RMAP)
 		bs->cur = NULL;
 
+out_free:
 	if (init_sa)
 		xchk_ag_free(bs->sc, &bs->sc->sa);
 
@@ -435,12 +436,12 @@ xchk_btree_check_owner(
 		if (!co)
 			return -ENOMEM;
 		co->level = level;
-		co->daddr = XFS_BUF_ADDR(bp);
+		co->daddr = xfs_buf_daddr(bp);
 		list_add_tail(&co->list, &bs->to_check);
 		return 0;
 	}
 
-	return xchk_btree_check_block_owner(bs, level, XFS_BUF_ADDR(bp));
+	return xchk_btree_check_block_owner(bs, level, xfs_buf_daddr(bp));
 }
 
 /* Decide if we want to check minrecs of a btree block in the inode root. */

fs/xfs/scrub/btree.h

@@ -27,7 +27,7 @@ void xchk_btree_xref_set_corrupt(struct xfs_scrub *sc,
 struct xchk_btree;
 typedef int (*xchk_btree_rec_fn)(
 	struct xchk_btree		*bs,
-	union xfs_btree_rec	*rec);
+	const union xfs_btree_rec	*rec);
 
 struct xchk_btree {
 	/* caller-provided scrub state */

fs/xfs/scrub/common.c

@@ -186,7 +186,7 @@ xchk_block_set_preen(
 	struct xfs_buf		*bp)
 {
 	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_PREEN;
-	trace_xchk_block_preen(sc, bp->b_bn, __return_address);
+	trace_xchk_block_preen(sc, xfs_buf_daddr(bp), __return_address);
 }
 
 /*
@@ -219,7 +219,7 @@ xchk_block_set_corrupt(
 	struct xfs_buf		*bp)
 {
 	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
-	trace_xchk_block_error(sc, bp->b_bn, __return_address);
+	trace_xchk_block_error(sc, xfs_buf_daddr(bp), __return_address);
 }
 
 /* Record a corruption while cross-referencing. */
@@ -229,7 +229,7 @@ xchk_block_xref_set_corrupt(
 	struct xfs_buf		*bp)
 {
 	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_XCORRUPT;
-	trace_xchk_block_error(sc, bp->b_bn, __return_address);
+	trace_xchk_block_error(sc, xfs_buf_daddr(bp), __return_address);
 }
 
 /*
@@ -324,7 +324,7 @@ struct xchk_rmap_ownedby_info {
 STATIC int
 xchk_count_rmap_ownedby_irec(
 	struct xfs_btree_cur		*cur,
-	struct xfs_rmap_irec		*rec,
+	const struct xfs_rmap_irec	*rec,
 	void				*priv)
 {
 	struct xchk_rmap_ownedby_info	*sroi = priv;
@@ -394,11 +394,11 @@ want_ag_read_header_failure(
 }
 
 /*
- * Grab all the headers for an AG.
+ * Grab the perag structure and all the headers for an AG.
  *
- * The headers should be released by xchk_ag_free, but as a fail
- * safe we attach all the buffers we grab to the scrub transaction so
- * they'll all be freed when we cancel it.
+ * The headers should be released by xchk_ag_free, but as a fail safe we attach
+ * all the buffers we grab to the scrub transaction so they'll all be freed
+ * when we cancel it.  Returns ENOENT if we can't grab the perag structure.
  */
 int
 xchk_ag_read_headers(
@@ -409,22 +409,24 @@ xchk_ag_read_headers(
 	struct xfs_mount	*mp = sc->mp;
 	int			error;
 
-	sa->agno = agno;
+	ASSERT(!sa->pag);
+	sa->pag = xfs_perag_get(mp, agno);
+	if (!sa->pag)
+		return -ENOENT;
 
 	error = xfs_ialloc_read_agi(mp, sc->tp, agno, &sa->agi_bp);
 	if (error && want_ag_read_header_failure(sc, XFS_SCRUB_TYPE_AGI))
-		goto out;
+		return error;
 
 	error = xfs_alloc_read_agf(mp, sc->tp, agno, 0, &sa->agf_bp);
 	if (error && want_ag_read_header_failure(sc, XFS_SCRUB_TYPE_AGF))
-		goto out;
+		return error;
 
 	error = xfs_alloc_read_agfl(mp, sc->tp, agno, &sa->agfl_bp);
 	if (error && want_ag_read_header_failure(sc, XFS_SCRUB_TYPE_AGFL))
-		goto out;
-	error = 0;
-out:
 		return error;
+
+	return 0;
 }
 
 /* Release all the AG btree cursors. */
@@ -461,7 +463,6 @@ xchk_ag_btcur_init(
 {
 	struct xfs_mount	*mp = sc->mp;
 
-	xchk_perag_get(sc->mp, sa);
 	if (sa->agf_bp &&
 	    xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_BNO)) {
 		/* Set up a bnobt cursor for cross-referencing. */
@@ -484,21 +485,21 @@ xchk_ag_btcur_init(
 	}
 
 	/* Set up a finobt cursor for cross-referencing. */
-	if (sa->agi_bp && xfs_sb_version_hasfinobt(&mp->m_sb) &&
+	if (sa->agi_bp && xfs_has_finobt(mp) &&
 	    xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_FINO)) {
 		sa->fino_cur = xfs_inobt_init_cursor(mp, sc->tp, sa->agi_bp,
 				sa->pag, XFS_BTNUM_FINO);
 	}
 
 	/* Set up a rmapbt cursor for cross-referencing. */
-	if (sa->agf_bp && xfs_sb_version_hasrmapbt(&mp->m_sb) &&
+	if (sa->agf_bp && xfs_has_rmapbt(mp) &&
 	    xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_RMAP)) {
 		sa->rmap_cur = xfs_rmapbt_init_cursor(mp, sc->tp, sa->agf_bp,
 				sa->pag);
 	}
 
 	/* Set up a refcountbt cursor for cross-referencing. */
-	if (sa->agf_bp && xfs_sb_version_hasreflink(&mp->m_sb) &&
+	if (sa->agf_bp && xfs_has_reflink(mp) &&
 	    xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_REFC)) {
 		sa->refc_cur = xfs_refcountbt_init_cursor(mp, sc->tp,
 				sa->agf_bp, sa->pag);
@@ -528,15 +529,14 @@ xchk_ag_free(
 		xfs_perag_put(sa->pag);
 		sa->pag = NULL;
 	}
-	sa->agno = NULLAGNUMBER;
 }
 
 /*
- * For scrub, grab the AGI and the AGF headers, in that order.  Locking
- * order requires us to get the AGI before the AGF.  We use the
- * transaction to avoid deadlocking on crosslinked metadata buffers;
- * either the caller passes one in (bmap scrub) or we have to create a
- * transaction ourselves.
+ * For scrub, grab the perag structure, the AGI, and the AGF headers, in that
+ * order.  Locking order requires us to get the AGI before the AGF.  We use the
+ * transaction to avoid deadlocking on crosslinked metadata buffers; either the
+ * caller passes one in (bmap scrub) or we have to create a transaction
+ * ourselves.  Returns ENOENT if the perag struct cannot be grabbed.
  */
 int
 xchk_ag_init(
@@ -554,19 +554,6 @@ xchk_ag_init(
 	return 0;
 }
 
-/*
- * Grab the per-ag structure if we haven't already gotten it.  Teardown of the
- * xchk_ag will release it for us.
- */
-void
-xchk_perag_get(
-	struct xfs_mount	*mp,
-	struct xchk_ag		*sa)
-{
-	if (!sa->pag)
-		sa->pag = xfs_perag_get(mp, sa->agno);
-}
-
 /* Per-scrubber setup functions */
 
 /*
@@ -797,7 +784,7 @@ xchk_buffer_recheck(
 	if (!fa)
 		return;
 	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
-	trace_xchk_block_error(sc, bp->b_bn, fa);
+	trace_xchk_block_error(sc, xfs_buf_daddr(bp), fa);
 }
 
 /*
@@ -842,7 +829,7 @@ xchk_metadata_inode_forks(
 		return error;
 
 	/* Look for incorrect shared blocks. */
-	if (xfs_sb_version_hasreflink(&sc->mp->m_sb)) {
+	if (xfs_has_reflink(sc->mp)) {
 		error = xfs_reflink_inode_has_shared_extents(sc->tp, sc->ip,
 				&shared);
 		if (!xchk_fblock_process_error(sc, XFS_DATA_FORK, 0,
@@ -884,6 +871,7 @@ xchk_stop_reaping(
 {
 	sc->flags |= XCHK_REAPING_DISABLED;
 	xfs_blockgc_stop(sc->mp);
+	xfs_inodegc_stop(sc->mp);
 }
 
 /* Restart background reaping of resources. */
@@ -891,6 +879,13 @@ void
 xchk_start_reaping(
 	struct xfs_scrub	*sc)
 {
+	/*
+	 * Readonly filesystems do not perform inactivation or speculative
+	 * preallocation, so there's no need to restart the workers.
+	 */
+	if (!xfs_is_readonly(sc->mp)) {
+		xfs_inodegc_start(sc->mp);
 		xfs_blockgc_start(sc->mp);
+	}
 	sc->flags &= ~XCHK_REAPING_DISABLED;
 }

fs/xfs/scrub/common.h

@@ -107,7 +107,23 @@ int xchk_setup_fscounters(struct xfs_scrub *sc);
 void xchk_ag_free(struct xfs_scrub *sc, struct xchk_ag *sa);
 int xchk_ag_init(struct xfs_scrub *sc, xfs_agnumber_t agno,
 		struct xchk_ag *sa);
-void xchk_perag_get(struct xfs_mount *mp, struct xchk_ag *sa);
+
+/*
+ * Grab all AG resources, treating the inability to grab the perag structure as
+ * a fs corruption.  This is intended for callers checking an ondisk reference
+ * to a given AG, which means that the AG must still exist.
+ */
+static inline int
+xchk_ag_init_existing(
+	struct xfs_scrub	*sc,
+	xfs_agnumber_t		agno,
+	struct xchk_ag		*sa)
+{
+	int			error = xchk_ag_init(sc, agno, sa);
+
+	return error == -ENOENT ? -EFSCORRUPTED : error;
+}
+
 int xchk_ag_read_headers(struct xfs_scrub *sc, xfs_agnumber_t agno,
 		struct xchk_ag *sa);
 void xchk_ag_btcur_free(struct xchk_ag *sa);

fs/xfs/scrub/dabtree.c

@@ -367,11 +367,11 @@ xchk_da_btree_block(
 	pmaxrecs = &ds->maxrecs[level];
 
 	/* We only started zeroing the header on v5 filesystems. */
-	if (xfs_sb_version_hascrc(&ds->sc->mp->m_sb) && hdr3->hdr.pad)
+	if (xfs_has_crc(ds->sc->mp) && hdr3->hdr.pad)
 		xchk_da_set_corrupt(ds, level);
 
 	/* Check the owner. */
-	if (xfs_sb_version_hascrc(&ip->i_mount->m_sb)) {
+	if (xfs_has_crc(ip->i_mount)) {
 		owner = be64_to_cpu(hdr3->owner);
 		if (owner != ip->i_ino)
 			xchk_da_set_corrupt(ds, level);

fs/xfs/scrub/dir.c

@@ -51,7 +51,7 @@ xchk_dir_check_ftype(
 	int			ino_dtype;
 	int			error = 0;
 
-	if (!xfs_sb_version_hasftype(&mp->m_sb)) {
+	if (!xfs_has_ftype(mp)) {
 		if (dtype != DT_UNKNOWN && dtype != DT_DIR)
 			xchk_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK,
 					offset);
@@ -140,7 +140,7 @@ xchk_dir_actor(
 
 	if (!strncmp(".", name, namelen)) {
 		/* If this is "." then check that the inum matches the dir. */
-		if (xfs_sb_version_hasftype(&mp->m_sb) && type != DT_DIR)
+		if (xfs_has_ftype(mp) && type != DT_DIR)
 			xchk_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK,
 					offset);
 		checked_ftype = true;
@@ -152,7 +152,7 @@ xchk_dir_actor(
 		 * If this is ".." in the root inode, check that the inum
 		 * matches this dir.
 		 */
-		if (xfs_sb_version_hasftype(&mp->m_sb) && type != DT_DIR)
+		if (xfs_has_ftype(mp) && type != DT_DIR)
 			xchk_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK,
 					offset);
 		checked_ftype = true;
@@ -526,7 +526,7 @@ xchk_directory_leaf1_bestfree(
 	bestcount = be32_to_cpu(ltp->bestcount);
 	bestp = xfs_dir2_leaf_bests_p(ltp);
 
-	if (xfs_sb_version_hascrc(&sc->mp->m_sb)) {
+	if (xfs_has_crc(sc->mp)) {
 		struct xfs_dir3_leaf_hdr	*hdr3 = bp->b_addr;
 
 		if (hdr3->pad != cpu_to_be32(0))
@@ -623,7 +623,7 @@ xchk_directory_free_bestfree(
 		return error;
 	xchk_buffer_recheck(sc, bp);
 
-	if (xfs_sb_version_hascrc(&sc->mp->m_sb)) {
+	if (xfs_has_crc(sc->mp)) {
 		struct xfs_dir3_free_hdr	*hdr3 = bp->b_addr;
 
 		if (hdr3->pad != cpu_to_be32(0))

fs/xfs/scrub/fscounters.c

@@ -148,9 +148,9 @@ xchk_fscount_btreeblks(
 	xfs_extlen_t		blocks;
 	int			error;
 
-	error = xchk_ag_init(sc, agno, &sc->sa);
+	error = xchk_ag_init_existing(sc, agno, &sc->sa);
 	if (error)
-		return error;
+		goto out_free;
 
 	error = xfs_btree_count_blocks(sc->sa.bno_cur, &blocks);
 	if (error)
@@ -207,7 +207,7 @@ retry:
 		/* Add up the free/freelist/bnobt/cntbt blocks */
 		fsc->fdblocks += pag->pagf_freeblks;
 		fsc->fdblocks += pag->pagf_flcount;
-		if (xfs_sb_version_haslazysbcount(&sc->mp->m_sb)) {
+		if (xfs_has_lazysbcount(sc->mp)) {
 			fsc->fdblocks += pag->pagf_btreeblks;
 		} else {
 			error = xchk_fscount_btreeblks(sc, fsc, agno);

fs/xfs/scrub/ialloc.c

@@ -418,7 +418,7 @@ xchk_iallocbt_rec_alignment(
 STATIC int
 xchk_iallocbt_rec(
 	struct xchk_btree		*bs,
-	union xfs_btree_rec		*rec)
+	const union xfs_btree_rec	*rec)
 {
 	struct xfs_mount		*mp = bs->cur->bc_mp;
 	struct xchk_iallocbt		*iabt = bs->private;
@@ -517,7 +517,7 @@ xchk_iallocbt_xref_rmap_btreeblks(
 	int			error;
 
 	if (!sc->sa.ino_cur || !sc->sa.rmap_cur ||
-	    (xfs_sb_version_hasfinobt(&sc->mp->m_sb) && !sc->sa.fino_cur) ||
+	    (xfs_has_finobt(sc->mp) && !sc->sa.fino_cur) ||
 	    xchk_skip_xref(sc->sm))
 		return;
 

fs/xfs/scrub/inode.c

@@ -181,7 +181,7 @@ xchk_inode_flags2(
 
 	/* reflink flag requires reflink feature */
 	if ((flags2 & XFS_DIFLAG2_REFLINK) &&
-	    !xfs_sb_version_hasreflink(&mp->m_sb))
+	    !xfs_has_reflink(mp))
 		goto bad;
 
 	/* cowextsize flag is checked w.r.t. mode separately */
@@ -199,8 +199,7 @@ xchk_inode_flags2(
 		goto bad;
 
 	/* no bigtime iflag without the bigtime feature */
-	if (xfs_dinode_has_bigtime(dip) &&
-	    !xfs_sb_version_hasbigtime(&mp->m_sb))
+	if (xfs_dinode_has_bigtime(dip) && !xfs_has_bigtime(mp))
 		goto bad;
 
 	return;
@@ -278,7 +277,7 @@ xchk_dinode(
 			xchk_ino_set_corrupt(sc, ino);
 
 		if (dip->di_projid_hi != 0 &&
-		    !xfs_sb_version_hasprojid32bit(&mp->m_sb))
+		    !xfs_has_projid32(mp))
 			xchk_ino_set_corrupt(sc, ino);
 		break;
 	default:
@@ -532,9 +531,9 @@ xchk_inode_xref(
 	agno = XFS_INO_TO_AGNO(sc->mp, ino);
 	agbno = XFS_INO_TO_AGBNO(sc->mp, ino);
 
-	error = xchk_ag_init(sc, agno, &sc->sa);
+	error = xchk_ag_init_existing(sc, agno, &sc->sa);
 	if (!xchk_xref_process_error(sc, agno, agbno, &error))
-		return;
+		goto out_free;
 
 	xchk_xref_is_used_space(sc, agbno, 1);
 	xchk_inode_xref_finobt(sc, ino);
@@ -542,6 +541,7 @@ xchk_inode_xref(
 	xchk_xref_is_not_shared(sc, agbno, 1);
 	xchk_inode_xref_bmap(sc, dip);
 
+out_free:
 	xchk_ag_free(sc, &sc->sa);
 }
 
@@ -560,7 +560,7 @@ xchk_inode_check_reflink_iflag(
 	bool			has_shared;
 	int			error;
 
-	if (!xfs_sb_version_hasreflink(&mp->m_sb))
+	if (!xfs_has_reflink(mp))
 		return;
 
 	error = xfs_reflink_inode_has_shared_extents(sc->tp, sc->ip,

fs/xfs/scrub/quota.c

@@ -42,7 +42,7 @@ xchk_setup_quota(
 	xfs_dqtype_t		dqtype;
 	int			error;
 
-	if (!XFS_IS_QUOTA_RUNNING(sc->mp) || !XFS_IS_QUOTA_ON(sc->mp))
+	if (!XFS_IS_QUOTA_ON(sc->mp))
 		return -ENOENT;
 
 	dqtype = xchk_quota_to_dqtype(sc);
@@ -127,7 +127,7 @@ xchk_quota_item(
 	 * a reflink filesystem we're allowed to exceed physical space
 	 * if there are no quota limits.
 	 */
-	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+	if (xfs_has_reflink(mp)) {
 		if (mp->m_sb.sb_dblocks < dq->q_blk.count)
 			xchk_fblock_set_warning(sc, XFS_DATA_FORK,
 					offset);

fs/xfs/scrub/refcount.c

@@ -91,7 +91,7 @@ struct xchk_refcnt_check {
 STATIC int
 xchk_refcountbt_rmap_check(
 	struct xfs_btree_cur		*cur,
-	struct xfs_rmap_irec		*rec,
+	const struct xfs_rmap_irec	*rec,
 	void				*priv)
 {
 	struct xchk_refcnt_check	*refchk = priv;
@@ -330,7 +330,7 @@ xchk_refcountbt_xref(
 STATIC int
 xchk_refcountbt_rec(
 	struct xchk_btree	*bs,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec *rec)
 {
 	struct xfs_mount	*mp = bs->cur->bc_mp;
 	xfs_agblock_t		*cow_blocks = bs->private;

fs/xfs/scrub/repair.c

@@ -248,19 +248,19 @@ xrep_calc_ag_resblks(
 	 * bnobt/cntbt or inobt/finobt as pairs.
 	 */
 	bnobt_sz = 2 * xfs_allocbt_calc_size(mp, freelen);
-	if (xfs_sb_version_hassparseinodes(&mp->m_sb))
+	if (xfs_has_sparseinodes(mp))
 		inobt_sz = xfs_iallocbt_calc_size(mp, icount /
 				XFS_INODES_PER_HOLEMASK_BIT);
 	else
 		inobt_sz = xfs_iallocbt_calc_size(mp, icount /
 				XFS_INODES_PER_CHUNK);
-	if (xfs_sb_version_hasfinobt(&mp->m_sb))
+	if (xfs_has_finobt(mp))
 		inobt_sz *= 2;
-	if (xfs_sb_version_hasreflink(&mp->m_sb))
+	if (xfs_has_reflink(mp))
 		refcbt_sz = xfs_refcountbt_calc_size(mp, usedlen);
 	else
 		refcbt_sz = 0;
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
+	if (xfs_has_rmapbt(mp)) {
 		/*
 		 * Guess how many blocks we need to rebuild the rmapbt.
 		 * For non-reflink filesystems we can't have more records than
@@ -269,7 +269,7 @@ xrep_calc_ag_resblks(
 		 * many rmaps there could be in the AG, so we start off with
 		 * what we hope is an generous over-estimation.
 		 */
-		if (xfs_sb_version_hasreflink(&mp->m_sb))
+		if (xfs_has_reflink(mp))
 			rmapbt_sz = xfs_rmapbt_calc_size(mp,
 					(unsigned long long)aglen * 2);
 		else
@@ -306,9 +306,9 @@ xrep_alloc_ag_block(
 			return -ENOSPC;
 		xfs_extent_busy_reuse(sc->mp, sc->sa.pag, bno,
 				1, false);
-		*fsbno = XFS_AGB_TO_FSB(sc->mp, sc->sa.agno, bno);
+		*fsbno = XFS_AGB_TO_FSB(sc->mp, sc->sa.pag->pag_agno, bno);
 		if (resv == XFS_AG_RESV_RMAPBT)
-			xfs_ag_resv_rmapbt_alloc(sc->mp, sc->sa.agno);
+			xfs_ag_resv_rmapbt_alloc(sc->mp, sc->sa.pag->pag_agno);
 		return 0;
 	default:
 		break;
@@ -317,7 +317,7 @@ xrep_alloc_ag_block(
 	args.tp = sc->tp;
 	args.mp = sc->mp;
 	args.oinfo = *oinfo;
-	args.fsbno = XFS_AGB_TO_FSB(args.mp, sc->sa.agno, 0);
+	args.fsbno = XFS_AGB_TO_FSB(args.mp, sc->sa.pag->pag_agno, 0);
 	args.minlen = 1;
 	args.maxlen = 1;
 	args.prod = 1;
@@ -352,14 +352,14 @@ xrep_init_btblock(
 	trace_xrep_init_btblock(mp, XFS_FSB_TO_AGNO(mp, fsb),
 			XFS_FSB_TO_AGBNO(mp, fsb), btnum);
 
-	ASSERT(XFS_FSB_TO_AGNO(mp, fsb) == sc->sa.agno);
+	ASSERT(XFS_FSB_TO_AGNO(mp, fsb) == sc->sa.pag->pag_agno);
 	error = xfs_trans_get_buf(tp, mp->m_ddev_targp,
 			XFS_FSB_TO_DADDR(mp, fsb), XFS_FSB_TO_BB(mp, 1), 0,
 			&bp);
 	if (error)
 		return error;
 	xfs_buf_zero(bp, 0, BBTOB(bp->b_length));
-	xfs_btree_init_block(mp, bp, btnum, 0, 0, sc->sa.agno);
+	xfs_btree_init_block(mp, bp, btnum, 0, 0, sc->sa.pag->pag_agno);
 	xfs_trans_buf_set_type(tp, bp, XFS_BLFT_BTREE_BUF);
 	xfs_trans_log_buf(tp, bp, 0, BBTOB(bp->b_length) - 1);
 	bp->b_ops = ops;
@@ -481,7 +481,7 @@ xrep_fix_freelist(
 
 	args.mp = sc->mp;
 	args.tp = sc->tp;
-	args.agno = sc->sa.agno;
+	args.agno = sc->sa.pag->pag_agno;
 	args.alignment = 1;
 	args.pag = sc->sa.pag;
 
@@ -611,11 +611,11 @@ xrep_reap_extents(
 	xfs_fsblock_t			fsbno;
 	int				error = 0;
 
-	ASSERT(xfs_sb_version_hasrmapbt(&sc->mp->m_sb));
+	ASSERT(xfs_has_rmapbt(sc->mp));
 
 	for_each_xbitmap_block(fsbno, bmr, n, bitmap) {
 		ASSERT(sc->ip != NULL ||
-		       XFS_FSB_TO_AGNO(sc->mp, fsbno) == sc->sa.agno);
+		       XFS_FSB_TO_AGNO(sc->mp, fsbno) == sc->sa.pag->pag_agno);
 		trace_xrep_dispose_btree_extent(sc->mp,
 				XFS_FSB_TO_AGNO(sc->mp, fsbno),
 				XFS_FSB_TO_AGBNO(sc->mp, fsbno), 1);
@@ -690,7 +690,7 @@ xrep_findroot_block(
 	int				block_level;
 	int				error = 0;
 
-	daddr = XFS_AGB_TO_DADDR(mp, ri->sc->sa.agno, agbno);
+	daddr = XFS_AGB_TO_DADDR(mp, ri->sc->sa.pag->pag_agno, agbno);
 
 	/*
 	 * Blocks in the AGFL have stale contents that might just happen to
@@ -819,7 +819,7 @@ xrep_findroot_block(
 	else
 		fab->root = NULLAGBLOCK;
 
-	trace_xrep_findroot_block(mp, ri->sc->sa.agno, agbno,
+	trace_xrep_findroot_block(mp, ri->sc->sa.pag->pag_agno, agbno,
 			be32_to_cpu(btblock->bb_magic), fab->height - 1);
 out:
 	xfs_trans_brelse(ri->sc->tp, bp);
@@ -833,7 +833,7 @@ out:
 STATIC int
 xrep_findroot_rmap(
 	struct xfs_btree_cur		*cur,
-	struct xfs_rmap_irec		*rec,
+	const struct xfs_rmap_irec	*rec,
 	void				*priv)
 {
 	struct xrep_findroot		*ri = priv;

fs/xfs/scrub/rmap.c

@@ -88,7 +88,7 @@ xchk_rmapbt_xref(
 STATIC int
 xchk_rmapbt_rec(
 	struct xchk_btree	*bs,
-	union xfs_btree_rec	*rec)
+	const union xfs_btree_rec *rec)
 {
 	struct xfs_mount	*mp = bs->cur->bc_mp;
 	struct xfs_rmap_irec	irec;

fs/xfs/scrub/rtbitmap.c

@@ -41,7 +41,7 @@ xchk_setup_rt(
 STATIC int
 xchk_rtbitmap_rec(
 	struct xfs_trans	*tp,
-	struct xfs_rtalloc_rec	*rec,
+	const struct xfs_rtalloc_rec *rec,
 	void			*priv)
 {
 	struct xfs_scrub	*sc = priv;

fs/xfs/scrub/scrub.c

@@ -239,21 +239,21 @@ static const struct xchk_meta_ops meta_scrub_ops[] = {
 		.type	= ST_PERAG,
 		.setup	= xchk_setup_ag_iallocbt,
 		.scrub	= xchk_finobt,
-		.has	= xfs_sb_version_hasfinobt,
+		.has	= xfs_has_finobt,
 		.repair	= xrep_notsupported,
 	},
 	[XFS_SCRUB_TYPE_RMAPBT] = {	/* rmapbt */
 		.type	= ST_PERAG,
 		.setup	= xchk_setup_ag_rmapbt,
 		.scrub	= xchk_rmapbt,
-		.has	= xfs_sb_version_hasrmapbt,
+		.has	= xfs_has_rmapbt,
 		.repair	= xrep_notsupported,
 	},
 	[XFS_SCRUB_TYPE_REFCNTBT] = {	/* refcountbt */
 		.type	= ST_PERAG,
 		.setup	= xchk_setup_ag_refcountbt,
 		.scrub	= xchk_refcountbt,
-		.has	= xfs_sb_version_hasreflink,
+		.has	= xfs_has_reflink,
 		.repair	= xrep_notsupported,
 	},
 	[XFS_SCRUB_TYPE_INODE] = {	/* inode record */
@@ -308,14 +308,14 @@ static const struct xchk_meta_ops meta_scrub_ops[] = {
 		.type	= ST_FS,
 		.setup	= xchk_setup_rt,
 		.scrub	= xchk_rtbitmap,
-		.has	= xfs_sb_version_hasrealtime,
+		.has	= xfs_has_realtime,
 		.repair	= xrep_notsupported,
 	},
 	[XFS_SCRUB_TYPE_RTSUM] = {	/* realtime summary */
 		.type	= ST_FS,
 		.setup	= xchk_setup_rt,
 		.scrub	= xchk_rtsummary,
-		.has	= xfs_sb_version_hasrealtime,
+		.has	= xfs_has_realtime,
 		.repair	= xrep_notsupported,
 	},
 	[XFS_SCRUB_TYPE_UQUOTA] = {	/* user quota */
@@ -383,7 +383,7 @@ xchk_validate_inputs(
 	if (ops->setup == NULL || ops->scrub == NULL)
 		goto out;
 	/* Does this fs even support this type of metadata? */
-	if (ops->has && !ops->has(&mp->m_sb))
+	if (ops->has && !ops->has(mp))
 		goto out;
 
 	error = -EINVAL;
@@ -415,11 +415,11 @@ xchk_validate_inputs(
 	 */
 	if (sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR) {
 		error = -EOPNOTSUPP;
-		if (!xfs_sb_version_hascrc(&mp->m_sb))
+		if (!xfs_has_crc(mp))
 			goto out;
 
 		error = -EROFS;
-		if (mp->m_flags & XFS_MOUNT_RDONLY)
+		if (xfs_is_readonly(mp))
 			goto out;
 	}
 
@@ -464,9 +464,6 @@ xfs_scrub_metadata(
 	struct xfs_scrub		sc = {
 		.file			= file,
 		.sm			= sm,
-		.sa			= {
-			.agno		= NULLAGNUMBER,
-		},
 	};
 	struct xfs_mount		*mp = XFS_I(file_inode(file))->i_mount;
 	int				error = 0;
@@ -480,10 +477,10 @@ xfs_scrub_metadata(
 
 	/* Forbidden if we are shut down or mounted norecovery. */
 	error = -ESHUTDOWN;
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		goto out;
 	error = -ENOTRECOVERABLE;
-	if (mp->m_flags & XFS_MOUNT_NORECOVERY)
+	if (xfs_has_norecovery(mp))
 		goto out;
 
 	error = xchk_validate_inputs(mp, sm);

fs/xfs/scrub/scrub.h

@@ -27,7 +27,7 @@ struct xchk_meta_ops {
 	int		(*repair)(struct xfs_scrub *);
 
 	/* Decide if we even have this piece of metadata. */
-	bool		(*has)(struct xfs_sb *);
+	bool		(*has)(struct xfs_mount *);
 
 	/* type describing required/allowed inputs */
 	enum xchk_type	type;
@@ -35,7 +35,6 @@ struct xchk_meta_ops {
 
 /* Buffer pointers and btree cursors for an entire AG. */
 struct xchk_ag {
-	xfs_agnumber_t		agno;
 	struct xfs_perag	*pag;
 
 	/* AG btree roots */

fs/xfs/scrub/trace.c

@@ -22,11 +22,11 @@ xchk_btree_cur_fsbno(
 	int			level)
 {
 	if (level < cur->bc_nlevels && cur->bc_bufs[level])
-		return XFS_DADDR_TO_FSB(cur->bc_mp, cur->bc_bufs[level]->b_bn);
-	else if (level == cur->bc_nlevels - 1 &&
-		 cur->bc_flags & XFS_BTREE_LONG_PTRS)
+		return XFS_DADDR_TO_FSB(cur->bc_mp,
+				xfs_buf_daddr(cur->bc_bufs[level]));
+	if (level == cur->bc_nlevels - 1 && cur->bc_flags & XFS_BTREE_LONG_PTRS)
 		return XFS_INO_TO_FSB(cur->bc_mp, cur->bc_ino.ip->i_ino);
-	else if (!(cur->bc_flags & XFS_BTREE_LONG_PTRS))
+	if (!(cur->bc_flags & XFS_BTREE_LONG_PTRS))
 		return XFS_AGB_TO_FSB(cur->bc_mp, cur->bc_ag.pag->pag_agno, 0);
 	return NULLFSBLOCK;
 }

fs/xfs/scrub/trace.h

@@ -2,6 +2,10 @@
 /*
  * Copyright (C) 2017 Oracle.  All Rights Reserved.
  * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * NOTE: none of these tracepoints shall be considered a stable kernel ABI
+ * as they can change at any time.  See xfs_trace.h for documentation of
+ * specific units found in tracepoint output.
  */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM xfs_scrub
@@ -79,6 +83,16 @@ TRACE_DEFINE_ENUM(XFS_SCRUB_TYPE_FSCOUNTERS);
 	{ XFS_SCRUB_TYPE_PQUOTA,	"prjquota" }, \
 	{ XFS_SCRUB_TYPE_FSCOUNTERS,	"fscounters" }
 
+#define XFS_SCRUB_FLAG_STRINGS \
+	{ XFS_SCRUB_IFLAG_REPAIR,		"repair" }, \
+	{ XFS_SCRUB_OFLAG_CORRUPT,		"corrupt" }, \
+	{ XFS_SCRUB_OFLAG_PREEN,		"preen" }, \
+	{ XFS_SCRUB_OFLAG_XFAIL,		"xfail" }, \
+	{ XFS_SCRUB_OFLAG_XCORRUPT,		"xcorrupt" }, \
+	{ XFS_SCRUB_OFLAG_INCOMPLETE,		"incomplete" }, \
+	{ XFS_SCRUB_OFLAG_WARNING,		"warning" }, \
+	{ XFS_SCRUB_OFLAG_NO_REPAIR_NEEDED,	"norepair" }
+
 DECLARE_EVENT_CLASS(xchk_class,
 	TP_PROTO(struct xfs_inode *ip, struct xfs_scrub_metadata *sm,
 		 int error),
@@ -103,14 +117,14 @@ DECLARE_EVENT_CLASS(xchk_class,
 		__entry->flags = sm->sm_flags;
 		__entry->error = error;
 	),
-	TP_printk("dev %d:%d ino 0x%llx type %s agno %u inum %llu gen %u flags 0x%x error %d",
+	TP_printk("dev %d:%d ino 0x%llx type %s agno 0x%x inum 0x%llx gen 0x%x flags (%s) error %d",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->ino,
 		  __print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
 		  __entry->agno,
 		  __entry->inum,
 		  __entry->gen,
-		  __entry->flags,
+		  __print_flags(__entry->flags, "|", XFS_SCRUB_FLAG_STRINGS),
 		  __entry->error)
 )
 #define DEFINE_SCRUB_EVENT(name) \
@@ -145,7 +159,7 @@ TRACE_EVENT(xchk_op_error,
 		__entry->error = error;
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d type %s agno %u agbno %u error %d ret_ip %pS",
+	TP_printk("dev %d:%d type %s agno 0x%x agbno 0x%x error %d ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
 		  __entry->agno,
@@ -176,10 +190,10 @@ TRACE_EVENT(xchk_file_op_error,
 		__entry->error = error;
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d ino 0x%llx fork %d type %s offset %llu error %d ret_ip %pS",
+	TP_printk("dev %d:%d ino 0x%llx fork %s type %s fileoff 0x%llx error %d ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->ino,
-		  __entry->whichfork,
+		  __print_symbolic(__entry->whichfork, XFS_WHICHFORK_STRINGS),
 		  __print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
 		  __entry->offset,
 		  __entry->error,
@@ -193,29 +207,21 @@ DECLARE_EVENT_CLASS(xchk_block_error_class,
 		__field(dev_t, dev)
 		__field(unsigned int, type)
 		__field(xfs_agnumber_t, agno)
-		__field(xfs_agblock_t, bno)
+		__field(xfs_agblock_t, agbno)
 		__field(void *, ret_ip)
 	),
 	TP_fast_assign(
-		xfs_fsblock_t	fsbno;
-		xfs_agnumber_t	agno;
-		xfs_agblock_t	bno;
-
-		fsbno = XFS_DADDR_TO_FSB(sc->mp, daddr);
-		agno = XFS_FSB_TO_AGNO(sc->mp, fsbno);
-		bno = XFS_FSB_TO_AGBNO(sc->mp, fsbno);
-
 		__entry->dev = sc->mp->m_super->s_dev;
 		__entry->type = sc->sm->sm_type;
-		__entry->agno = agno;
-		__entry->bno = bno;
+		__entry->agno = xfs_daddr_to_agno(sc->mp, daddr);
+		__entry->agbno = xfs_daddr_to_agbno(sc->mp, daddr);
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d type %s agno %u agbno %u ret_ip %pS",
+	TP_printk("dev %d:%d type %s agno 0x%x agbno 0x%x ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
 		  __entry->agno,
-		  __entry->bno,
+		  __entry->agbno,
 		  __entry->ret_ip)
 )
 
@@ -281,10 +287,10 @@ DECLARE_EVENT_CLASS(xchk_fblock_error_class,
 		__entry->offset = offset;
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d ino 0x%llx fork %d type %s offset %llu ret_ip %pS",
+	TP_printk("dev %d:%d ino 0x%llx fork %s type %s fileoff 0x%llx ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->ino,
-		  __entry->whichfork,
+		  __print_symbolic(__entry->whichfork, XFS_WHICHFORK_STRINGS),
 		  __print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
 		  __entry->offset,
 		  __entry->ret_ip)
@@ -346,7 +352,7 @@ TRACE_EVENT(xchk_btree_op_error,
 		__entry->error = error;
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d type %s btree %s level %d ptr %d agno %u agbno %u error %d ret_ip %pS",
+	TP_printk("dev %d:%d type %s btree %s level %d ptr %d agno 0x%x agbno 0x%x error %d ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
 		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS),
@@ -389,10 +395,10 @@ TRACE_EVENT(xchk_ifork_btree_op_error,
 		__entry->error = error;
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d ino 0x%llx fork %d type %s btree %s level %d ptr %d agno %u agbno %u error %d ret_ip %pS",
+	TP_printk("dev %d:%d ino 0x%llx fork %s type %s btree %s level %d ptr %d agno 0x%x agbno 0x%x error %d ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->ino,
-		  __entry->whichfork,
+		  __print_symbolic(__entry->whichfork, XFS_WHICHFORK_STRINGS),
 		  __print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
 		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS),
 		  __entry->level,
@@ -428,7 +434,7 @@ TRACE_EVENT(xchk_btree_error,
 		__entry->ptr = cur->bc_ptrs[level];
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d type %s btree %s level %d ptr %d agno %u agbno %u ret_ip %pS",
+	TP_printk("dev %d:%d type %s btree %s level %d ptr %d agno 0x%x agbno 0x%x ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
 		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS),
@@ -468,10 +474,10 @@ TRACE_EVENT(xchk_ifork_btree_error,
 		__entry->ptr = cur->bc_ptrs[level];
 		__entry->ret_ip = ret_ip;
 	),
-	TP_printk("dev %d:%d ino 0x%llx fork %d type %s btree %s level %d ptr %d agno %u agbno %u ret_ip %pS",
+	TP_printk("dev %d:%d ino 0x%llx fork %s type %s btree %s level %d ptr %d agno 0x%x agbno 0x%x ret_ip %pS",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->ino,
-		  __entry->whichfork,
+		  __print_symbolic(__entry->whichfork, XFS_WHICHFORK_STRINGS),
 		  __print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
 		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS),
 		  __entry->level,
@@ -507,7 +513,7 @@ DECLARE_EVENT_CLASS(xchk_sbtree_class,
 		__entry->nlevels = cur->bc_nlevels;
 		__entry->ptr = cur->bc_ptrs[level];
 	),
-	TP_printk("dev %d:%d type %s btree %s agno %u agbno %u level %d nlevels %d ptr %d",
+	TP_printk("dev %d:%d type %s btree %s agno 0x%x agbno 0x%x level %d nlevels %d ptr %d",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __print_symbolic(__entry->type, XFS_SCRUB_TYPE_STRINGS),
 		  __print_symbolic(__entry->btnum, XFS_BTNUM_STRINGS),
@@ -580,7 +586,7 @@ TRACE_EVENT(xchk_iallocbt_check_cluster,
 		__entry->holemask = holemask;
 		__entry->cluster_ino = cluster_ino;
 	),
-	TP_printk("dev %d:%d agno %d startino %u daddr 0x%llx len %d chunkino %u nr_inodes %u cluster_mask 0x%x holemask 0x%x cluster_ino %u",
+	TP_printk("dev %d:%d agno 0x%x startino 0x%x daddr 0x%llx bbcount 0x%x chunkino 0x%x nr_inodes %u cluster_mask 0x%x holemask 0x%x cluster_ino 0x%x",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->agno,
 		  __entry->startino,
@@ -670,7 +676,7 @@ DECLARE_EVENT_CLASS(xrep_extent_class,
 		__entry->agbno = agbno;
 		__entry->len = len;
 	),
-	TP_printk("dev %d:%d agno %u agbno %u len %u",
+	TP_printk("dev %d:%d agno 0x%x agbno 0x%x fsbcount 0x%x",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->agno,
 		  __entry->agbno,
@@ -707,7 +713,7 @@ DECLARE_EVENT_CLASS(xrep_rmap_class,
 		__entry->offset = offset;
 		__entry->flags = flags;
 	),
-	TP_printk("dev %d:%d agno %u agbno %u len %u owner %lld offset %llu flags 0x%x",
+	TP_printk("dev %d:%d agno 0x%x agbno 0x%x fsbcount 0x%x owner 0x%llx fileoff 0x%llx flags 0x%x",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->agno,
 		  __entry->agbno,
@@ -745,7 +751,7 @@ TRACE_EVENT(xrep_refcount_extent_fn,
 		__entry->blockcount = irec->rc_blockcount;
 		__entry->refcount = irec->rc_refcount;
 	),
-	TP_printk("dev %d:%d agno %u agbno %u len %u refcount %u",
+	TP_printk("dev %d:%d agno 0x%x agbno 0x%x fsbcount 0x%x refcount %u",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->agno,
 		  __entry->startblock,
@@ -769,7 +775,7 @@ TRACE_EVENT(xrep_init_btblock,
 		__entry->agbno = agbno;
 		__entry->btnum = btnum;
 	),
-	TP_printk("dev %d:%d agno %u agbno %u btree %s",
+	TP_printk("dev %d:%d agno 0x%x agbno 0x%x btree %s",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->agno,
 		  __entry->agbno,
@@ -793,7 +799,7 @@ TRACE_EVENT(xrep_findroot_block,
 		__entry->magic = magic;
 		__entry->level = level;
 	),
-	TP_printk("dev %d:%d agno %u agbno %u magic 0x%x level %u",
+	TP_printk("dev %d:%d agno 0x%x agbno 0x%x magic 0x%x level %u",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->agno,
 		  __entry->agbno,
@@ -821,7 +827,7 @@ TRACE_EVENT(xrep_calc_ag_resblks,
 		__entry->freelen = freelen;
 		__entry->usedlen = usedlen;
 	),
-	TP_printk("dev %d:%d agno %d icount %u aglen %u freelen %u usedlen %u",
+	TP_printk("dev %d:%d agno 0x%x icount %u aglen %u freelen %u usedlen %u",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->agno,
 		  __entry->icount,
@@ -850,7 +856,7 @@ TRACE_EVENT(xrep_calc_ag_resblks_btsize,
 		__entry->rmapbt_sz = rmapbt_sz;
 		__entry->refcbt_sz = refcbt_sz;
 	),
-	TP_printk("dev %d:%d agno %d bno %u ino %u rmap %u refcount %u",
+	TP_printk("dev %d:%d agno 0x%x bnobt %u inobt %u rmapbt %u refcountbt %u",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->agno,
 		  __entry->bnobt_sz,
@@ -894,7 +900,7 @@ TRACE_EVENT(xrep_ialloc_insert,
 		__entry->freecount = freecount;
 		__entry->freemask = freemask;
 	),
-	TP_printk("dev %d:%d agno %d startino %u holemask 0x%x count %u freecount %u freemask 0x%llx",
+	TP_printk("dev %d:%d agno 0x%x startino 0x%x holemask 0x%x count %u freecount %u freemask 0x%llx",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->agno,
 		  __entry->startino,

fs/xfs/xfs_acl.c

@@ -232,7 +232,7 @@ xfs_acl_set_mode(
 	inode->i_ctime = current_time(inode);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 
-	if (mp->m_flags & XFS_MOUNT_WSYNC)
+	if (xfs_has_wsync(mp))
 		xfs_trans_set_sync(tp);
 	return xfs_trans_commit(tp);
 }

fs/xfs/xfs_aops.c

@@ -97,7 +97,7 @@ xfs_end_ioend(
 	/*
 	 * Just clean up the in-memory structures if the fs has been shut down.
 	 */
-	if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
+	if (xfs_is_shutdown(ip->i_mount)) {
 		error = -EIO;
 		goto done;
 	}
@@ -260,7 +260,7 @@ xfs_map_blocks(
 	int			retries = 0;
 	int			error = 0;
 
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		return -EIO;
 
 	/*
@@ -440,7 +440,7 @@ xfs_discard_page(
 	xfs_fileoff_t		pageoff_fsb = XFS_B_TO_FSBT(mp, pageoff);
 	int			error;
 
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		goto out_invalidate;
 
 	xfs_alert_ratelimited(mp,
@@ -449,7 +449,7 @@ xfs_discard_page(
 
 	error = xfs_bmap_punch_delalloc_range(ip, start_fsb,
 			i_blocks_per_page(inode, page) - pageoff_fsb);
-	if (error && !XFS_FORCED_SHUTDOWN(mp))
+	if (error && !xfs_is_shutdown(mp))
 		xfs_alert(mp, "page discard unable to remove delalloc mapping.");
 out_invalidate:
 	iomap_invalidatepage(page, pageoff, PAGE_SIZE - pageoff);
@@ -461,22 +461,6 @@ static const struct iomap_writeback_ops xfs_writeback_ops = {
 	.discard_page		= xfs_discard_page,
 };
 
-STATIC int
-xfs_vm_writepage(
-	struct page		*page,
-	struct writeback_control *wbc)
-{
-	struct xfs_writepage_ctx wpc = { };
-
-	if (WARN_ON_ONCE(current->journal_info)) {
-		redirty_page_for_writepage(wbc, page);
-		unlock_page(page);
-		return 0;
-	}
-
-	return iomap_writepage(page, wbc, &wpc.ctx, &xfs_writeback_ops);
-}
-
 STATIC int
 xfs_vm_writepages(
 	struct address_space	*mapping,
@@ -559,7 +543,6 @@ xfs_iomap_swapfile_activate(
 const struct address_space_operations xfs_address_space_operations = {
 	.readpage		= xfs_vm_readpage,
 	.readahead		= xfs_vm_readahead,
-	.writepage		= xfs_vm_writepage,
 	.writepages		= xfs_vm_writepages,
 	.set_page_dirty		= __set_page_dirty_nobuffers,
 	.releasepage		= iomap_releasepage,

fs/xfs/xfs_attr_inactive.c

@@ -151,7 +151,7 @@ xfs_attr3_node_inactive(
 	}
 
 	xfs_da3_node_hdr_from_disk(dp->i_mount, &ichdr, bp->b_addr);
-	parent_blkno = bp->b_bn;
+	parent_blkno = xfs_buf_daddr(bp);
 	if (!ichdr.count) {
 		xfs_trans_brelse(*trans, bp);
 		return 0;
@@ -177,7 +177,7 @@ xfs_attr3_node_inactive(
 			return error;
 
 		/* save for re-read later */
-		child_blkno = XFS_BUF_ADDR(child_bp);
+		child_blkno = xfs_buf_daddr(child_bp);
 
 		/*
 		 * Invalidate the subtree, however we have to.
@@ -271,7 +271,7 @@ xfs_attr3_root_inactive(
 	error = xfs_da3_node_read(*trans, dp, 0, &bp, XFS_ATTR_FORK);
 	if (error)
 		return error;
-	blkno = bp->b_bn;
+	blkno = xfs_buf_daddr(bp);
 
 	/*
 	 * Invalidate the tree, even if the "tree" is only a single leaf block.

fs/xfs/xfs_attr_list.c

@@ -529,7 +529,7 @@ xfs_attr_list(
 
 	XFS_STATS_INC(dp->i_mount, xs_attr_list);
 
-	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
+	if (xfs_is_shutdown(dp->i_mount))
 		return -EIO;
 
 	lock_mode = xfs_ilock_attr_map_shared(dp);

fs/xfs/xfs_bmap_item.c

@@ -24,7 +24,6 @@
 #include "xfs_error.h"
 #include "xfs_log_priv.h"
 #include "xfs_log_recover.h"
-#include "xfs_quota.h"
 
 kmem_zone_t	*xfs_bui_zone;
 kmem_zone_t	*xfs_bud_zone;
@@ -487,18 +486,10 @@ xfs_bui_item_recover(
 			XFS_ATTR_FORK : XFS_DATA_FORK;
 	bui_type = bmap->me_flags & XFS_BMAP_EXTENT_TYPE_MASK;
 
-	/* Grab the inode. */
-	error = xfs_iget(mp, NULL, bmap->me_owner, 0, 0, &ip);
+	error = xlog_recover_iget(mp, bmap->me_owner, &ip);
 	if (error)
 		return error;
 
-	error = xfs_qm_dqattach(ip);
-	if (error)
-		goto err_rele;
-
-	if (VFS_I(ip)->i_nlink == 0)
-		xfs_iflags_set(ip, XFS_IRECOVERY);
-
 	/* Allocate transaction and do the work. */
 	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate,
 			XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK), 0, 0, &tp);
@@ -522,6 +513,9 @@ xfs_bui_item_recover(
 	error = xfs_trans_log_finish_bmap_update(tp, budp, bui_type, ip,
 			whichfork, bmap->me_startoff, bmap->me_startblock,
 			&count, state);
+	if (error == -EFSCORRUPTED)
+		XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bmap,
+				sizeof(*bmap));
 	if (error)
 		goto err_cancel;
 

fs/xfs/xfs_bmap_util.c

@@ -731,7 +731,7 @@ xfs_free_eofblocks(
 
 	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
 	if (error) {
-		ASSERT(XFS_FORCED_SHUTDOWN(mp));
+		ASSERT(xfs_is_shutdown(mp));
 		return error;
 	}
 
@@ -789,7 +789,7 @@ xfs_alloc_file_space(
 
 	trace_xfs_alloc_file_space(ip);
 
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		return -EIO;
 
 	error = xfs_qm_dqattach(ip);
@@ -1282,7 +1282,7 @@ xfs_swap_extents_check_format(
 	 * If we have to use the (expensive) rmap swap method, we can
 	 * handle any number of extents and any format.
 	 */
-	if (xfs_sb_version_hasrmapbt(&ip->i_mount->m_sb))
+	if (xfs_has_rmapbt(ip->i_mount))
 		return 0;
 
 	/*
@@ -1516,7 +1516,7 @@ xfs_swap_extent_forks(
 	 * event of a crash. Set the owner change log flags now and leave the
 	 * bmbt scan as the last step.
 	 */
-	if (xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) {
+	if (xfs_has_v3inodes(ip->i_mount)) {
 		if (ip->i_df.if_format == XFS_DINODE_FMT_BTREE)
 			(*target_log_flags) |= XFS_ILOG_DOWNER;
 		if (tip->i_df.if_format == XFS_DINODE_FMT_BTREE)
@@ -1553,7 +1553,7 @@ xfs_swap_extent_forks(
 		(*src_log_flags) |= XFS_ILOG_DEXT;
 		break;
 	case XFS_DINODE_FMT_BTREE:
-		ASSERT(!xfs_sb_version_has_v3inode(&ip->i_mount->m_sb) ||
+		ASSERT(!xfs_has_v3inodes(ip->i_mount) ||
 		       (*src_log_flags & XFS_ILOG_DOWNER));
 		(*src_log_flags) |= XFS_ILOG_DBROOT;
 		break;
@@ -1565,7 +1565,7 @@ xfs_swap_extent_forks(
 		break;
 	case XFS_DINODE_FMT_BTREE:
 		(*target_log_flags) |= XFS_ILOG_DBROOT;
-		ASSERT(!xfs_sb_version_has_v3inode(&ip->i_mount->m_sb) ||
+		ASSERT(!xfs_has_v3inodes(ip->i_mount) ||
 		       (*target_log_flags & XFS_ILOG_DOWNER));
 		break;
 	}
@@ -1678,7 +1678,7 @@ xfs_swap_extents(
 	 * a block reservation because it's really just a remap operation
 	 * performed with log redo items!
 	 */
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
+	if (xfs_has_rmapbt(mp)) {
 		int		w = XFS_DATA_FORK;
 		uint32_t	ipnext = ip->i_df.if_nextents;
 		uint32_t	tipnext	= tip->i_df.if_nextents;
@@ -1759,7 +1759,7 @@ xfs_swap_extents(
 	src_log_flags = XFS_ILOG_CORE;
 	target_log_flags = XFS_ILOG_CORE;
 
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb))
+	if (xfs_has_rmapbt(mp))
 		error = xfs_swap_extent_rmap(&tp, ip, tip);
 	else
 		error = xfs_swap_extent_forks(tp, ip, tip, &src_log_flags,
@@ -1778,7 +1778,7 @@ xfs_swap_extents(
 	}
 
 	/* Swap the cow forks. */
-	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+	if (xfs_has_reflink(mp)) {
 		ASSERT(!ip->i_cowfp ||
 		       ip->i_cowfp->if_format == XFS_DINODE_FMT_EXTENTS);
 		ASSERT(!tip->i_cowfp ||
@@ -1820,7 +1820,7 @@ xfs_swap_extents(
 	 * If this is a synchronous mount, make sure that the
 	 * transaction goes to disk before returning to the user.
 	 */
-	if (mp->m_flags & XFS_MOUNT_WSYNC)
+	if (xfs_has_wsync(mp))
 		xfs_trans_set_sync(tp);
 
 	error = xfs_trans_commit(tp);

fs/xfs/xfs_buf.c

@@ -251,7 +251,7 @@ _xfs_buf_alloc(
 		return error;
 	}
 
-	bp->b_bn = map[0].bm_bn;
+	bp->b_rhash_key = map[0].bm_bn;
 	bp->b_length = 0;
 	for (i = 0; i < nmaps; i++) {
 		bp->b_maps[i].bm_bn = map[i].bm_bn;
@@ -315,7 +315,6 @@ xfs_buf_alloc_kmem(
 	struct xfs_buf	*bp,
 	xfs_buf_flags_t	flags)
 {
-	int		align_mask = xfs_buftarg_dma_alignment(bp->b_target);
 	xfs_km_flags_t	kmflag_mask = KM_NOFS;
 	size_t		size = BBTOB(bp->b_length);
 
@@ -323,7 +322,7 @@ xfs_buf_alloc_kmem(
 	if (!(flags & XBF_READ))
 		kmflag_mask |= KM_ZERO;
 
-	bp->b_addr = kmem_alloc_io(size, align_mask, kmflag_mask);
+	bp->b_addr = kmem_alloc(size, kmflag_mask);
 	if (!bp->b_addr)
 		return -ENOMEM;
 
@@ -460,7 +459,7 @@ _xfs_buf_obj_cmp(
 	 */
 	BUILD_BUG_ON(offsetof(struct xfs_buf_map, bm_bn) != 0);
 
-	if (bp->b_bn != map->bm_bn)
+	if (bp->b_rhash_key != map->bm_bn)
 		return 1;
 
 	if (unlikely(bp->b_length != map->bm_len)) {
@@ -482,7 +481,7 @@ static const struct rhashtable_params xfs_buf_hash_params = {
 	.min_size		= 32,	/* empty AGs have minimal footprint */
 	.nelem_hint		= 16,
 	.key_len		= sizeof(xfs_daddr_t),
-	.key_offset		= offsetof(struct xfs_buf, b_bn),
+	.key_offset		= offsetof(struct xfs_buf, b_rhash_key),
 	.head_offset		= offsetof(struct xfs_buf, b_rhash_head),
 	.automatic_shrinking	= true,
 	.obj_cmpfn		= _xfs_buf_obj_cmp,
@@ -814,7 +813,7 @@ xfs_buf_read_map(
 	 * buffer.
 	 */
 	if (error) {
-		if (!XFS_FORCED_SHUTDOWN(target->bt_mount))
+		if (!xfs_is_shutdown(target->bt_mount))
 			xfs_buf_ioerror_alert(bp, fa);
 
 		bp->b_flags &= ~XBF_DONE;
@@ -854,7 +853,9 @@ xfs_buf_readahead_map(
 
 /*
  * Read an uncached buffer from disk. Allocates and returns a locked
- * buffer containing the disk contents or nothing.
+ * buffer containing the disk contents or nothing. Uncached buffers always have
+ * a cache index of XFS_BUF_DADDR_NULL so we can easily determine if the buffer
+ * is cached or uncached during fault diagnosis.
  */
 int
 xfs_buf_read_uncached(
@@ -876,7 +877,7 @@ xfs_buf_read_uncached(
 
 	/* set up the buffer for a read IO */
 	ASSERT(bp->b_map_count == 1);
-	bp->b_bn = XFS_BUF_DADDR_NULL;  /* always null for uncached buffers */
+	bp->b_rhash_key = XFS_BUF_DADDR_NULL;
 	bp->b_maps[0].bm_bn = daddr;
 	bp->b_flags |= XBF_READ;
 	bp->b_ops = ops;
@@ -1145,7 +1146,7 @@ xfs_buf_ioerror_permanent(
 		return true;
 
 	/* At unmount we may treat errors differently */
-	if ((mp->m_flags & XFS_MOUNT_UNMOUNTING) && mp->m_fail_unmount)
+	if (xfs_is_unmounting(mp) && mp->m_fail_unmount)
 		return true;
 
 	return false;
@@ -1179,7 +1180,7 @@ xfs_buf_ioend_handle_error(
 	 * If we've already decided to shutdown the filesystem because of I/O
 	 * errors, there's no point in giving this a retry.
 	 */
-	if (XFS_FORCED_SHUTDOWN(mp))
+	if (xfs_is_shutdown(mp))
 		goto out_stale;
 
 	xfs_buf_ioerror_alert_ratelimited(bp);
@@ -1336,7 +1337,7 @@ xfs_buf_ioerror_alert(
 {
 	xfs_buf_alert_ratelimited(bp, "XFS: metadata IO error",
 		"metadata I/O error in \"%pS\" at daddr 0x%llx len %d error %d",
-				  func, (uint64_t)XFS_BUF_ADDR(bp),
+				  func, (uint64_t)xfs_buf_daddr(bp),
 				  bp->b_length, -bp->b_error);
 }
 
@@ -1514,17 +1515,18 @@ _xfs_buf_ioapply(
 						   SHUTDOWN_CORRUPT_INCORE);
 				return;
 			}
-		} else if (bp->b_bn != XFS_BUF_DADDR_NULL) {
+		} else if (bp->b_rhash_key != XFS_BUF_DADDR_NULL) {
 			struct xfs_mount *mp = bp->b_mount;
 
 			/*
 			 * non-crc filesystems don't attach verifiers during
 			 * log recovery, so don't warn for such filesystems.
 			 */
-			if (xfs_sb_version_hascrc(&mp->m_sb)) {
+			if (xfs_has_crc(mp)) {
 				xfs_warn(mp,
 					"%s: no buf ops on daddr 0x%llx len %d",
-					__func__, bp->b_bn, bp->b_length);
+					__func__, xfs_buf_daddr(bp),
+					bp->b_length);
 				xfs_hex_dump(bp->b_addr,
 						XFS_CORRUPTION_DUMP_LEN);
 				dump_stack();
@@ -1592,7 +1594,7 @@ __xfs_buf_submit(
 	ASSERT(!(bp->b_flags & _XBF_DELWRI_Q));
 
 	/* on shutdown we stale and complete the buffer immediately */
-	if (XFS_FORCED_SHUTDOWN(bp->b_mount)) {
+	if (xfs_is_shutdown(bp->b_mount)) {
 		xfs_buf_ioend_fail(bp);
 		return -EIO;
 	}
@@ -1794,7 +1796,7 @@ xfs_buftarg_drain(
 				xfs_buf_alert_ratelimited(bp,
 					"XFS: Corruption Alert",
 "Corruption Alert: Buffer at daddr 0x%llx had permanent write failures!",
-					(long long)bp->b_bn);
+					(long long)xfs_buf_daddr(bp));
 			}
 			xfs_buf_rele(bp);
 		}
@@ -1809,7 +1811,7 @@ xfs_buftarg_drain(
 	 * down the fs.
 	 */
 	if (write_fail) {
-		ASSERT(XFS_FORCED_SHUTDOWN(btp->bt_mount));
+		ASSERT(xfs_is_shutdown(btp->bt_mount));
 		xfs_alert(btp->bt_mount,
 	      "Please run xfs_repair to determine the extent of the problem.");
 	}
@@ -2302,7 +2304,7 @@ xfs_verify_magic(
 	struct xfs_mount	*mp = bp->b_mount;
 	int			idx;
 
-	idx = xfs_sb_version_hascrc(&mp->m_sb);
+	idx = xfs_has_crc(mp);
 	if (WARN_ON(!bp->b_ops || !bp->b_ops->magic[idx]))
 		return false;
 	return dmagic == bp->b_ops->magic[idx];
@@ -2320,7 +2322,7 @@ xfs_verify_magic16(
 	struct xfs_mount	*mp = bp->b_mount;
 	int			idx;
 
-	idx = xfs_sb_version_hascrc(&mp->m_sb);
+	idx = xfs_has_crc(mp);
 	if (WARN_ON(!bp->b_ops || !bp->b_ops->magic16[idx]))
 		return false;
 	return dmagic == bp->b_ops->magic16[idx];

fs/xfs/xfs_buf.h

@@ -133,7 +133,8 @@ struct xfs_buf {
 	 * fast-path on locking.
 	 */
 	struct rhash_head	b_rhash_head;	/* pag buffer hash node */
-	xfs_daddr_t		b_bn;		/* block number of buffer */
+
+	xfs_daddr_t		b_rhash_key;	/* buffer cache index */
 	int			b_length;	/* size of buffer in BBs */
 	atomic_t		b_hold;		/* reference count */
 	atomic_t		b_lru_ref;	/* lru reclaim ref count */
@@ -296,18 +297,10 @@ extern int xfs_buf_delwri_pushbuf(struct xfs_buf *, struct list_head *);
 extern int xfs_buf_init(void);
 extern void xfs_buf_terminate(void);
 
-/*
- * These macros use the IO block map rather than b_bn. b_bn is now really
- * just for the buffer cache index for cached buffers. As IO does not use b_bn
- * anymore, uncached buffers do not use b_bn at all and hence must modify the IO
- * map directly. Uncached buffers are not allowed to be discontiguous, so this
- * is safe to do.
- *
- * In future, uncached buffers will pass the block number directly to the io
- * request function and hence these macros will go away at that point.
- */
-#define XFS_BUF_ADDR(bp)		((bp)->b_maps[0].bm_bn)
-#define XFS_BUF_SET_ADDR(bp, bno)	((bp)->b_maps[0].bm_bn = (xfs_daddr_t)(bno))
+static inline xfs_daddr_t xfs_buf_daddr(struct xfs_buf *bp)
+{
+	return bp->b_maps[0].bm_bn;
+}
 
 void xfs_buf_set_ref(struct xfs_buf *bp, int lru_ref);
 
@@ -355,12 +348,6 @@ extern int xfs_setsize_buftarg(struct xfs_buftarg *, unsigned int);
 #define xfs_getsize_buftarg(buftarg)	block_size((buftarg)->bt_bdev)
 #define xfs_readonly_buftarg(buftarg)	bdev_read_only((buftarg)->bt_bdev)
 
-static inline int
-xfs_buftarg_dma_alignment(struct xfs_buftarg *bt)
-{
-	return queue_dma_alignment(bt->bt_bdev->bd_disk->queue);
-}
-
 int xfs_buf_reverify(struct xfs_buf *bp, const struct xfs_buf_ops *ops);
 bool xfs_verify_magic(struct xfs_buf *bp, __be32 dmagic);
 bool xfs_verify_magic16(struct xfs_buf *bp, __be16 dmagic);

fs/xfs/xfs_buf_item.c

@@ -428,7 +428,7 @@ xfs_buf_item_format(
 	 * occurs during recovery.
 	 */
 	if (bip->bli_flags & XFS_BLI_INODE_BUF) {
-		if (xfs_sb_version_has_v3inode(&lip->li_mountp->m_sb) ||
+		if (xfs_has_v3inodes(lip->li_mountp) ||
 		    !((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) &&
 		      xfs_log_item_in_current_chkpt(lip)))
 			bip->__bli_format.blf_flags |= XFS_BLF_INODE_BUF;
@@ -581,7 +581,7 @@ xfs_buf_item_push(
 	if (bp->b_flags & XBF_WRITE_FAIL) {
 		xfs_buf_alert_ratelimited(bp, "XFS: Failing async write",
 	    "Failing async write on buffer block 0x%llx. Retrying async write.",
-					  (long long)bp->b_bn);
+					  (long long)xfs_buf_daddr(bp));
 	}
 
 	if (!xfs_buf_delwri_queue(bp, buffer_list))
@@ -616,7 +616,7 @@ xfs_buf_item_put(
 	 * that case, the bli is freed on buffer writeback completion.
 	 */
 	aborted = test_bit(XFS_LI_ABORTED, &lip->li_flags) ||
-		  XFS_FORCED_SHUTDOWN(lip->li_mountp);
+		  xfs_is_shutdown(lip->li_mountp);
 	dirty = bip->bli_flags & XFS_BLI_DIRTY;
 	if (dirty && !aborted)
 		return false;

fs/xfs/xfs_buf_item_recover.c

@@ -219,7 +219,7 @@ xlog_recover_validate_buf_type(
 	 * inconsistent state resulting in verification failures. Hence for now
 	 * just avoid the verification stage for non-crc filesystems
 	 */
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		return;
 
 	magic32 = be32_to_cpu(*(__be32 *)bp->b_addr);
@@ -497,7 +497,7 @@ xlog_recover_do_reg_buffer(
 			if (fa) {
 				xfs_alert(mp,
 	"dquot corrupt at %pS trying to replay into block 0x%llx",
-					fa, bp->b_bn);
+					fa, xfs_buf_daddr(bp));
 				goto next;
 			}
 		}
@@ -597,7 +597,7 @@ xlog_recover_do_inode_buffer(
 	 * Post recovery validation only works properly on CRC enabled
 	 * filesystems.
 	 */
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_has_crc(mp))
 		bp->b_ops = &xfs_inode_buf_ops;
 
 	inodes_per_buf = BBTOB(bp->b_length) >> mp->m_sb.sb_inodelog;
@@ -710,7 +710,7 @@ xlog_recover_get_buf_lsn(
 	uint16_t		blft;
 
 	/* v4 filesystems always recover immediately */
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
+	if (!xfs_has_crc(mp))
 		goto recover_immediately;
 
 	/*
@@ -787,7 +787,7 @@ xlog_recover_get_buf_lsn(
 		 * the relevant UUID in the superblock.
 		 */
 		lsn = be64_to_cpu(((struct xfs_dsb *)blk)->sb_lsn);
-		if (xfs_sb_version_hasmetauuid(&mp->m_sb))
+		if (xfs_has_metauuid(mp))
 			uuid = &((struct xfs_dsb *)blk)->sb_meta_uuid;
 		else
 			uuid = &((struct xfs_dsb *)blk)->sb_uuid;

fs/xfs/xfs_dir2_readdir.c

@@ -32,7 +32,7 @@ xfs_dir3_get_dtype(
 	struct xfs_mount	*mp,
 	uint8_t			filetype)
 {
-	if (!xfs_sb_version_hasftype(&mp->m_sb))
+	if (!xfs_has_ftype(mp))
 		return DT_UNKNOWN;
 
 	if (filetype >= XFS_DIR3_FT_MAX)
@@ -512,7 +512,7 @@ xfs_readdir(
 
 	trace_xfs_readdir(dp);
 
-	if (XFS_FORCED_SHUTDOWN(dp->i_mount))
+	if (xfs_is_shutdown(dp->i_mount))
 		return -EIO;
 
 	ASSERT(S_ISDIR(VFS_I(dp)->i_mode));

fs/xfs/xfs_discard.c

@@ -169,7 +169,7 @@ xfs_ioc_trim(
 	 * We haven't recovered the log, so we cannot use our bnobt-guided
 	 * storage zapping commands.
 	 */
-	if (mp->m_flags & XFS_MOUNT_NORECOVERY)
+	if (xfs_has_norecovery(mp))
 		return -EROFS;
 
 	if (copy_from_user(&range, urange, sizeof(range)))

fs/xfs/xfs_dquot.c

@@ -223,9 +223,9 @@ xfs_qm_init_dquot_blk(
 		d->dd_diskdq.d_version = XFS_DQUOT_VERSION;
 		d->dd_diskdq.d_id = cpu_to_be32(curid);
 		d->dd_diskdq.d_type = type;
-		if (curid > 0 && xfs_sb_version_hasbigtime(&mp->m_sb))
+		if (curid > 0 && xfs_has_bigtime(mp))
 			d->dd_diskdq.d_type |= XFS_DQTYPE_BIGTIME;
-		if (xfs_sb_version_hascrc(&mp->m_sb)) {
+		if (xfs_has_crc(mp)) {
 			uuid_copy(&d->dd_uuid, &mp->m_sb.sb_meta_uuid);
 			xfs_update_cksum((char *)d, sizeof(struct xfs_dqblk),
 					 XFS_DQUOT_CRC_OFF);
@@ -526,7 +526,7 @@ xfs_dquot_check_type(
 	 * expect an exact match for user dquots and for non-root group and
 	 * project dquots.
 	 */
-	if (xfs_sb_version_hascrc(&dqp->q_mount->m_sb) ||
+	if (xfs_has_crc(dqp->q_mount) ||
 	    dqp_type == XFS_DQTYPE_USER || dqp->q_id != 0)
 		return ddqp_type == dqp_type;
 
@@ -847,9 +847,6 @@ xfs_qm_dqget_checks(
 	struct xfs_mount	*mp,
 	xfs_dqtype_t		type)
 {
-	if (WARN_ON_ONCE(!XFS_IS_QUOTA_RUNNING(mp)))
-		return -ESRCH;
-
 	switch (type) {
 	case XFS_DQTYPE_USER:
 		if (!XFS_IS_UQUOTA_ON(mp))
@@ -1222,7 +1219,7 @@ xfs_qm_dqflush_check(
 
 	/* bigtime flag should never be set on root dquots */
 	if (dqp->q_type & XFS_DQTYPE_BIGTIME) {
-		if (!xfs_sb_version_hasbigtime(&dqp->q_mount->m_sb))
+		if (!xfs_has_bigtime(dqp->q_mount))
 			return __this_address;
 		if (dqp->q_id == 0)
 			return __this_address;
@@ -1301,7 +1298,7 @@ xfs_qm_dqflush(
 	 * buffer always has a valid CRC. This ensures there is no possibility
 	 * of a dquot without an up-to-date CRC getting to disk.
 	 */
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		dqblk->dd_lsn = cpu_to_be64(dqp->q_logitem.qli_item.li_lsn);
 		xfs_update_cksum((char *)dqblk, sizeof(struct xfs_dqblk),
 				 XFS_DQUOT_CRC_OFF);

fs/xfs/xfs_dquot.h

@@ -54,6 +54,16 @@ struct xfs_dquot_res {
 	xfs_qwarncnt_t		warnings;
 };
 
+static inline bool
+xfs_dquot_res_over_limits(
+	const struct xfs_dquot_res	*qres)
+{
+	if ((qres->softlimit && qres->softlimit < qres->reserved) ||
+	    (qres->hardlimit && qres->hardlimit < qres->reserved))
+		return true;
+	return false;
+}
+
 /*
  * The incore dquot structure
  */

fs/xfs/xfs_dquot_item.c

@@ -218,137 +218,3 @@ xfs_qm_dquot_logitem_init(
 					&xfs_dquot_item_ops);
 	lp->qli_dquot = dqp;
 }
-
-/*------------------  QUOTAOFF LOG ITEMS  -------------------*/
-
-static inline struct xfs_qoff_logitem *QOFF_ITEM(struct xfs_log_item *lip)
-{
-	return container_of(lip, struct xfs_qoff_logitem, qql_item);
-}
-
-
-/*
- * This returns the number of iovecs needed to log the given quotaoff item.
- * We only need 1 iovec for an quotaoff item.  It just logs the
- * quotaoff_log_format structure.
- */
-STATIC void
-xfs_qm_qoff_logitem_size(
-	struct xfs_log_item	*lip,
-	int			*nvecs,
-	int			*nbytes)
-{
-	*nvecs += 1;
-	*nbytes += sizeof(struct xfs_qoff_logitem);
-}
-
-STATIC void
-xfs_qm_qoff_logitem_format(
-	struct xfs_log_item	*lip,
-	struct xfs_log_vec	*lv)
-{
-	struct xfs_qoff_logitem	*qflip = QOFF_ITEM(lip);
-	struct xfs_log_iovec	*vecp = NULL;
-	struct xfs_qoff_logformat *qlf;
-
-	qlf = xlog_prepare_iovec(lv, &vecp, XLOG_REG_TYPE_QUOTAOFF);
-	qlf->qf_type = XFS_LI_QUOTAOFF;
-	qlf->qf_size = 1;
-	qlf->qf_flags = qflip->qql_flags;
-	xlog_finish_iovec(lv, vecp, sizeof(struct xfs_qoff_logitem));
-}
-
-/*
- * There isn't much you can do to push a quotaoff item.  It is simply
- * stuck waiting for the log to be flushed to disk.
- */
-STATIC uint
-xfs_qm_qoff_logitem_push(
-	struct xfs_log_item	*lip,
-	struct list_head	*buffer_list)
-{
-	return XFS_ITEM_LOCKED;
-}
-
-STATIC xfs_lsn_t
-xfs_qm_qoffend_logitem_committed(
-	struct xfs_log_item	*lip,
-	xfs_lsn_t		lsn)
-{
-	struct xfs_qoff_logitem	*qfe = QOFF_ITEM(lip);
-	struct xfs_qoff_logitem	*qfs = qfe->qql_start_lip;
-
-	xfs_qm_qoff_logitem_relse(qfs);
-
-	kmem_free(lip->li_lv_shadow);
-	kmem_free(qfe);
-	return (xfs_lsn_t)-1;
-}
-
-STATIC void
-xfs_qm_qoff_logitem_release(
-	struct xfs_log_item	*lip)
-{
-	struct xfs_qoff_logitem	*qoff = QOFF_ITEM(lip);
-
-	if (test_bit(XFS_LI_ABORTED, &lip->li_flags)) {
-		if (qoff->qql_start_lip)
-			xfs_qm_qoff_logitem_relse(qoff->qql_start_lip);
-		xfs_qm_qoff_logitem_relse(qoff);
-	}
-}
-
-static const struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
-	.iop_size	= xfs_qm_qoff_logitem_size,
-	.iop_format	= xfs_qm_qoff_logitem_format,
-	.iop_committed	= xfs_qm_qoffend_logitem_committed,
-	.iop_push	= xfs_qm_qoff_logitem_push,
-	.iop_release	= xfs_qm_qoff_logitem_release,
-};
-
-static const struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
-	.iop_size	= xfs_qm_qoff_logitem_size,
-	.iop_format	= xfs_qm_qoff_logitem_format,
-	.iop_push	= xfs_qm_qoff_logitem_push,
-	.iop_release	= xfs_qm_qoff_logitem_release,
-};
-
-/*
- * Delete the quotaoff intent from the AIL and free it. On success,
- * this should only be called for the start item. It can be used for
- * either on shutdown or abort.
- */
-void
-xfs_qm_qoff_logitem_relse(
-	struct xfs_qoff_logitem	*qoff)
-{
-	struct xfs_log_item	*lip = &qoff->qql_item;
-
-	ASSERT(test_bit(XFS_LI_IN_AIL, &lip->li_flags) ||
-	       test_bit(XFS_LI_ABORTED, &lip->li_flags) ||
-	       XFS_FORCED_SHUTDOWN(lip->li_mountp));
-	xfs_trans_ail_delete(lip, 0);
-	kmem_free(lip->li_lv_shadow);
-	kmem_free(qoff);
-}
-
-/*
- * Allocate and initialize an quotaoff item of the correct quota type(s).
- */
-struct xfs_qoff_logitem *
-xfs_qm_qoff_logitem_init(
-	struct xfs_mount	*mp,
-	struct xfs_qoff_logitem	*start,
-	uint			flags)
-{
-	struct xfs_qoff_logitem	*qf;
-
-	qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), 0);
-
-	xfs_log_item_init(mp, &qf->qql_item, XFS_LI_QUOTAOFF, start ?
-			&xfs_qm_qoffend_logitem_ops : &xfs_qm_qoff_logitem_ops);
-	qf->qql_item.li_mountp = mp;
-	qf->qql_start_lip = start;
-	qf->qql_flags = flags;
-	return qf;
-}

fs/xfs/xfs_dquot_item.h

@@ -9,7 +9,6 @@
 struct xfs_dquot;
 struct xfs_trans;
 struct xfs_mount;
-struct xfs_qoff_logitem;
 
 struct xfs_dq_logitem {
 	struct xfs_log_item	qli_item;	/* common portion */
@@ -17,22 +16,6 @@ struct xfs_dq_logitem {
 	xfs_lsn_t		qli_flush_lsn;	/* lsn at last flush */
 };
 
-struct xfs_qoff_logitem {
-	struct xfs_log_item	qql_item;	/* common portion */
-	struct xfs_qoff_logitem *qql_start_lip;	/* qoff-start logitem, if any */
-	unsigned int		qql_flags;
-};
-
-
 void xfs_qm_dquot_logitem_init(struct xfs_dquot *dqp);
-struct xfs_qoff_logitem	*xfs_qm_qoff_logitem_init(struct xfs_mount *mp,
-		struct xfs_qoff_logitem *start,
-		uint flags);
-void xfs_qm_qoff_logitem_relse(struct xfs_qoff_logitem *);
-struct xfs_qoff_logitem	*xfs_trans_get_qoff_item(struct xfs_trans *tp,
-		struct xfs_qoff_logitem *startqoff,
-		uint flags);
-void xfs_trans_log_quotaoff_item(struct xfs_trans *tp,
-		struct xfs_qoff_logitem *qlp);
 
 #endif	/* __XFS_DQUOT_ITEM_H__ */

fs/xfs/xfs_dquot_item_recover.c

@@ -136,7 +136,7 @@ xlog_recover_dquot_commit_pass2(
 	 * If the dquot has an LSN in it, recover the dquot only if it's less
 	 * than the lsn of the transaction we are replaying.
 	 */
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		struct xfs_dqblk *dqb = (struct xfs_dqblk *)ddq;
 		xfs_lsn_t	lsn = be64_to_cpu(dqb->dd_lsn);
 
@@ -146,7 +146,7 @@ xlog_recover_dquot_commit_pass2(
 	}
 
 	memcpy(ddq, recddq, item->ri_buf[1].i_len);
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_has_crc(mp)) {
 		xfs_update_cksum((char *)ddq, sizeof(struct xfs_dqblk),
 				 XFS_DQUOT_CRC_OFF);
 	}

fs/xfs/xfs_error.c

@@ -371,7 +371,7 @@ xfs_buf_corruption_error(
 
 	xfs_alert_tag(mp, XFS_PTAG_VERIFIER_ERROR,
 		  "Metadata corruption detected at %pS, %s block 0x%llx",
-		  fa, bp->b_ops->name, bp->b_bn);
+		  fa, bp->b_ops->name, xfs_buf_daddr(bp));
 
 	xfs_alert(mp, "Unmount and run xfs_repair");
 
@@ -402,7 +402,7 @@ xfs_buf_verifier_error(
 	xfs_alert_tag(mp, XFS_PTAG_VERIFIER_ERROR,
 		  "Metadata %s detected at %pS, %s block 0x%llx %s",
 		  bp->b_error == -EFSBADCRC ? "CRC error" : "corruption",
-		  fa, bp->b_ops->name, bp->b_bn, name);
+		  fa, bp->b_ops->name, xfs_buf_daddr(bp), name);
 
 	xfs_alert(mp, "Unmount and run xfs_repair");
 

fs/xfs/xfs_error.h

@@ -75,4 +75,16 @@ extern int xfs_errortag_clearall(struct xfs_mount *mp);
 #define		XFS_PTAG_FSBLOCK_ZERO		0x00000080
 #define		XFS_PTAG_VERIFIER_ERROR		0x00000100
 
+#define XFS_PTAG_STRINGS \
+	{ XFS_NO_PTAG,			"none" }, \
+	{ XFS_PTAG_IFLUSH,		"iflush" }, \
+	{ XFS_PTAG_LOGRES,		"logres" }, \
+	{ XFS_PTAG_AILDELETE,		"aildelete" }, \
+	{ XFS_PTAG_ERROR_REPORT	,	"error_report" }, \
+	{ XFS_PTAG_SHUTDOWN_CORRUPT,	"corrupt" }, \
+	{ XFS_PTAG_SHUTDOWN_IOERROR,	"ioerror" }, \
+	{ XFS_PTAG_SHUTDOWN_LOGERROR,	"logerror" }, \
+	{ XFS_PTAG_FSBLOCK_ZERO,	"fsb_zero" }, \
+	{ XFS_PTAG_VERIFIER_ERROR,	"verifier" }
+
 #endif	/* __XFS_ERROR_H__ */

fs/xfs/xfs_export.c

@@ -44,6 +44,7 @@ xfs_fs_encode_fh(
 	int		*max_len,
 	struct inode	*parent)
 {
+	struct xfs_mount	*mp = XFS_M(inode->i_sb);
 	struct fid		*fid = (struct fid *)fh;
 	struct xfs_fid64	*fid64 = (struct xfs_fid64 *)fh;
 	int			fileid_type;
@@ -63,8 +64,7 @@ xfs_fs_encode_fh(
 	 * large enough filesystem may contain them, thus the slightly
 	 * confusing looking conditional below.
 	 */
-	if (!(XFS_M(inode->i_sb)->m_flags & XFS_MOUNT_SMALL_INUMS) ||
-	    (XFS_M(inode->i_sb)->m_flags & XFS_MOUNT_32BITINODES))
+	if (!xfs_has_small_inums(mp) || xfs_is_inode32(mp))
 		fileid_type |= XFS_FILEID_TYPE_64FLAG;
 
 	/*