f2fs: fix to stop filesystem update once CP failed

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During f2fs_write_checkpoint(), once we failed in
f2fs_flush_nat_entries() or do_checkpoint(), metadata of filesystem
such as prefree bitmap, nat/sit version bitmap won't be recovered,
it may cause f2fs image to be inconsistent, let's just set CP error
flag to avoid further updates until we figure out a scheme to rollback
all metadatas in such condition.

Reported-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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Chao Yu 2021-08-04 08:38:38 +08:00 • committed by Jaegeuk Kim

parent 0f6b56ec95

commit 91803392c7

3 changed files with 23 additions and 6 deletions

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12

fs/f2fs/checkpoint.c

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2

fs/f2fs/f2fs.h

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15

fs/f2fs/segment.c

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