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f2fs: allow to read node block after shutdown

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commit e6ecb142429183cef4835f31d4134050ae660032 upstream.

If block address is still alive, we should give a valid node block even after
shutdown. Otherwise, we can see zero data when reading out a file.

Cc: stable@vger.kernel.org
Fixes: 83a3bfdb5a ("f2fs: indicate shutdown f2fs to allow unmount successfully")
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jaegeuk Kim
2022-11-08 17:59:34 -08:00
committed by Greg Kroah-Hartman
parent acc13987fd
commit 7eb57bc92f
1 changed files with 1 additions and 2 deletions
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3
fs/f2fs/node.c
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@@ -1357,8 +1357,7 @@ static int read_node_page(struct page *page, int op_flags)
return err; return err;
/* NEW_ADDR can be seen, after cp_error drops some dirty node pages */ /* NEW_ADDR can be seen, after cp_error drops some dirty node pages */
if (unlikely(ni.blk_addr == NULL_ADDR || ni.blk_addr == NEW_ADDR) || if (unlikely(ni.blk_addr == NULL_ADDR || ni.blk_addr == NEW_ADDR)) {
is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)) {
ClearPageUptodate(page); ClearPageUptodate(page);
return -ENOENT; return -ENOENT;
} }