Stas Sergeev caac7e6d00 sh: get_user_pages_fast() must flush cache ...

This patch avoids fuse hangs on sh4 by flushing the cache on
get_user_pages_fast().  This is not necessary a good thing to do, but
get_user_pages() does this, so get_user_pages_fast() should too.

Please note the patch for mips arch that addresses the similar problem:
  https://kernel.googlesource.com/pub/scm/linux/kernel/git/ralf/linux/+/linux-3.4.50%5E!/#F0

They basically simply disable get_user_pages_fast() at all, using a
fall-back to get_user_pages().  But my fix is different, it adds an
explicit cache flushes.

Signed-off-by: Stas Sergeev <stsp@users.sourceforge.net>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2014-09-10 15:42:12 -07:00

..

alignment.c

procfs: new helper - PDE_DATA(inode)

2013-04-09 14:13:32 -04:00

asids-debugfs.c

arch/sh/mm/asids-debugfs.c: use PTR_ERR_OR_ZERO

2014-08-06 18:01:12 -07:00

cache-debugfs.c

sh: prefix sh-specific "CCR" and "CCR2" by "SH_"

2014-03-04 07:55:49 -08:00

cache-sh2.c

sh: prefix sh-specific "CCR" and "CCR2" by "SH_"

2014-03-04 07:55:49 -08:00

cache-sh2a.c

sh: prefix sh-specific "CCR" and "CCR2" by "SH_"

2014-03-04 07:55:49 -08:00

cache-sh3.c

…

cache-sh4.c

sh: prefix sh-specific "CCR" and "CCR2" by "SH_"

2014-03-04 07:55:49 -08:00

cache-sh5.c

…

cache-sh7705.c

…

cache-shx3.c

sh: prefix sh-specific "CCR" and "CCR2" by "SH_"

2014-03-04 07:55:49 -08:00

cache.c

flush_icache_range: export symbol to fix build errors

2014-08-29 16:28:17 -07:00

consistent.c

SH: adapt for dma_map_ops changes

2012-03-28 16:36:37 +02:00

extable_32.c

…

extable_64.c

…

fault.c

arch: mm: pass userspace fault flag to generic fault handler

2013-09-12 15:38:01 -07:00

flush-sh4.c

sh: fix up fallout from system.h disintegration.

2012-03-30 19:29:57 +09:00

gup.c

sh: get_user_pages_fast() must flush cache

2014-09-10 15:42:12 -07:00

hugetlbpage.c

hugetlb: restrict hugepage_migration_support() to x86_64

2014-06-04 16:53:51 -07:00

init.c

memory-hotplug: sh: suitable memory should go to ZONE_MOVABLE

2014-08-06 18:01:21 -07:00

ioremap_fixed.c

…

ioremap.c

…

Kconfig

memblock: kill "config MAX_ACTIVE_REGIONS"

2013-04-18 13:03:53 +10:00

kmap.c

…

Makefile

sh64: Fix up caller-save register settings for fast-path.

2012-05-14 16:46:07 +09:00

mmap.c

Merge branch 'akpm' (Andrew's patchbomb)

2012-12-11 18:05:37 -08:00

nommu.c

…

numa.c

…

pgtable.c

…

pmb.c

Disintegrate asm/system.h for SH

2012-03-28 18:30:03 +01:00

sram.c

sh: fix up fallout from system.h disintegration.

2012-03-30 19:29:57 +09:00

tlb-debugfs.c

…

tlb-pteaex.c

Disintegrate asm/system.h for SH

2012-03-28 18:30:03 +01:00

tlb-sh3.c

Disintegrate asm/system.h for SH

2012-03-28 18:30:03 +01:00

tlb-sh4.c

Disintegrate asm/system.h for SH

2012-03-28 18:30:03 +01:00

tlb-sh5.c

sh: delete __cpuinit usage from all sh files

2013-07-14 19:36:53 -04:00

tlb-urb.c

…

tlbex_32.c

sh: Enable shared page fault handler for _32/_64.

2012-05-14 15:33:28 +09:00

tlbex_64.c

sh64: Set additional fault code values.

2012-05-14 17:46:49 +09:00

tlbflush_32.c

…

tlbflush_64.c

sh64: Migrate to __update_tlb() API.

2012-05-14 15:52:28 +09:00

uncached.c

…