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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-05-03 23:26:02 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@google.com> | 2018-05-07 17:03:00 -0700 |
| commit | aaae42a8cc0c37eb06deae8d81abd08badd9d9be (patch) | |
| tree | d12426af8ecd674950be5e09367c96060a6d0a3e | |
| parent | dab54f3573f5b0384b8c87c91fbf1f39cde7fcb3 (diff) | |
UPSTREAM: f2fs: avoid fsync() failure caused by EAGAIN in writepage()ASB-2018-06-05_3.18ASB-2018-05-05_3.18
pageout() in MM traslates EAGAIN, so calls handle_write_error()
-> mapping_set_error() -> set_bit(AS_EIO, ...).
file_write_and_wait_range() will see EIO error, which is critical
to return value of fsync() followed by atomic_write failure to user.
Change-Id: I1e1048eb271a58ddcb8a3050922d9e883aa0252c
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
(cherry picked from commit 8c088f40561cb73b8226ef975e66b5285c8943df)
| -rw-r--r-- | fs/f2fs/data.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 18233dc137ec..e2e560e52459 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1886,7 +1886,13 @@ out: redirty_out: redirty_page_for_writepage(wbc, page); - if (!err) + /* + * pageout() in MM traslates EAGAIN, so calls handle_write_error() + * -> mapping_set_error() -> set_bit(AS_EIO, ...). + * file_write_and_wait_range() will see EIO error, which is critical + * to return value of fsync() followed by atomic_write failure to user. + */ + if (!err || wbc->for_reclaim) return AOP_WRITEPAGE_ACTIVATE; unlock_page(page); return err; |