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| author |   Jaegeuk Kim <jaegeuk@kernel.org> | 2018-05-03 23:26:02 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-05-04 10:51:22 -0700 |
| commit | 5b19d284f5195a925dd015a6397bfce184097378 (patch) | |
| tree | 2d01d08c74de0967b1fe627fecb415bbd1826dd3 /fs/f2fs/data.c | |
| parent | f2fs: clear PageError on writepage (diff) | |
| download | linux-dev-5b19d284f5195a925dd015a6397bfce184097378.tar.xz linux-dev-5b19d284f5195a925dd015a6397bfce184097378.zip | |
f2fs: avoid fsync() failure caused by EAGAIN in writepage()
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.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/data.c')
| -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 5477fc09c3cd..ac8720fa5868 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1904,7 +1904,13 @@ 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; |