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xfs: implement optimized fdatasync

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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>
This commit is contained in:
Christoph Hellwig
2010-02-15 09:44:49 +00:00
committed by Alex Elder
parent fd3200bef7
commit 66d834ea60
4 changed files with 25 additions and 13 deletions
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4
fs/xfs/linux-2.6/xfs_aops.c
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@@ -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);