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| author | Jeff Mahoney <jeffm@suse.com> | 2006-03-25 03:07:00 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-25 08:22:51 -0800 |
| commit | 619d5d8a2b3f800ea3a0301a58ede570684956b0 (patch) | |
| tree | 8c256c7d50534a5da1b991fb53184c1b10bdc538 | |
| parent | a44c94a7b82a425b73384c104d5cb3dd3caa075e (diff) | |
| download | linux-3.10-619d5d8a2b3f800ea3a0301a58ede570684956b0.tar.gz linux-3.10-619d5d8a2b3f800ea3a0301a58ede570684956b0.tar.bz2 linux-3.10-619d5d8a2b3f800ea3a0301a58ede570684956b0.zip | |
[PATCH] reiserfs: reiserfs_file_write() will lose error code when a 0-length write occurs w/ O_SYNC
When an error occurs in reiserfs_file_write before any data is written, and
O_SYNC is set, the return code of generic_osync_write will overwrite the
error code, losing it.
This patch ensures that generic_osync_inode() doesn't run under an error
condition, losing the error. This duplicates the logic from
generic_file_buffered_write().
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Cc: Chris Mason <mason@suse.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Alexander Zarochentsev <zam@namesys.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | fs/reiserfs/file.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c index be12879bb17..044de8be39a 100644 --- a/fs/reiserfs/file.c +++ b/fs/reiserfs/file.c @@ -1546,10 +1546,10 @@ static ssize_t reiserfs_file_write(struct file *file, /* the file we are going t } } - if ((file->f_flags & O_SYNC) || IS_SYNC(inode)) - res = - generic_osync_inode(inode, file->f_mapping, - OSYNC_METADATA | OSYNC_DATA); + if (likely(res >= 0) && + (unlikely((file->f_flags & O_SYNC) || IS_SYNC(inode)))) + res = generic_osync_inode(inode, file->f_mapping, + OSYNC_METADATA | OSYNC_DATA); mutex_unlock(&inode->i_mutex); reiserfs_async_progress_wait(inode->i_sb); |