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| author | Christoph Hellwig <hch@infradead.org> | 2013-09-04 15:04:40 +0200 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-09-04 09:23:46 -0400 |
| commit | 02afc27faec94c9e068517a22acf55400976c698 (patch) | |
| tree | 45de9689088ea99e1197c3f20f08cb9835a66410 /fs/btrfs/file.c | |
| parent | 7b7a8665edd8db733980389b098530f9e4f630b2 (diff) | |
| download | lwn-02afc27faec94c9e068517a22acf55400976c698.tar.gz lwn-02afc27faec94c9e068517a22acf55400976c698.zip | |
direct-io: Handle O_(D)SYNC AIO
Call generic_write_sync() from the deferred I/O completion handler if
O_DSYNC is set for a write request. Also make sure various callers
don't call generic_write_sync if the direct I/O code returns
-EIOCBQUEUED.
Based on an earlier patch from Jan Kara <jack@suse.cz> with updates from
Jeff Moyer <jmoyer@redhat.com> and Darrick J. Wong <darrick.wong@oracle.com>.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/btrfs/file.c')
| -rw-r--r-- | fs/btrfs/file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 8e686a427ce2..4d2eb6417145 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1727,7 +1727,7 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb, */ BTRFS_I(inode)->last_trans = root->fs_info->generation + 1; BTRFS_I(inode)->last_sub_trans = root->log_transid; - if (num_written > 0 || num_written == -EIOCBQUEUED) { + if (num_written > 0) { err = generic_write_sync(file, pos, num_written); if (err < 0 && num_written > 0) num_written = err; |