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authorChristoph Hellwig2013-09-04 15:04:40 +0200
committerAl Viro2013-09-04 09:23:46 -0400
commit02afc27faec94c9e068517a22acf55400976c698 (patch)
tree45de9689088ea99e1197c3f20f08cb9835a66410 /fs/btrfs
parent7b7a8665edd8db733980389b098530f9e4f630b2 (diff)
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')
-rw-r--r--fs/btrfs/file.c2
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;