xfs: reimplement fdatasync support
Add an in-memory only flag to say we logged timestamps only, and use it to
check if fdatasync can optimize away the log force.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index e602c8c..e9ad789 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -907,7 +907,7 @@
ip->i_d.di_mtime.t_nsec = (__int32_t)inode->i_mtime.tv_nsec;
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
- xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+ xfs_trans_log_inode(tp, ip, XFS_ILOG_TIMESTAMP);
error = xfs_trans_commit(tp, 0);
if (error)
goto trouble;