diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2018-05-03 23:26:02 -0700 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@google.com> | 2018-05-07 17:04:57 -0700 |
| commit | 2ae4606507f1804b19b369f757a83c324f4246d2 (patch) | |
| tree | 85575a6cf5d7894cc4390cfeb34d27e463ba5617 | |
| parent | 99e5f1a4b96d2b236b565965143d37c5b3a26838 (diff) | |
UPSTREAM: f2fs: avoid fsync() failure caused by EAGAIN in writepage()ASB-2018-06-05_4.14ASB-2018-05-05_4.14
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: Ifdd5e09defcf0705901ff7f23001d68a811da3af
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
(cherry picked from commit 1ccd6c4ff9ccd74bb87903067618815d326af242)
| -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 1afce941a9df..c9db73e498a6 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1905,7 +1905,13 @@ 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; |