xfs: implement optimized fdatasync

Allow us to track the difference between timestamp and size updates
by using mark_inode_dirty from the I/O completion code, and checking
the VFS inode flags in xfs_file_fsync.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 66abe36c1213..ce369a816ce3 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -187,7 +187,7 @@ xfs_setfilesize(
         isize = xfs_ioend_new_eof(ioend);
         if (isize) {
                 ip->i_d.di_size = isize;
-                xfs_mark_inode_dirty_sync(ip);
+                xfs_mark_inode_dirty(ip);
         }
 
         xfs_iunlock(ip, XFS_ILOCK_EXCL);
@@ -341,7 +341,7 @@ xfs_submit_ioend_bio(
          * but don't update the inode size until I/O completion.
          */
         if (xfs_ioend_new_eof(ioend))
-                xfs_mark_inode_dirty_sync(XFS_I(ioend->io_inode));
+                xfs_mark_inode_dirty(XFS_I(ioend->io_inode));
 
         submit_bio(wbc->sync_mode == WB_SYNC_ALL ?
                    WRITE_SYNC_PLUG : WRITE, bio);