These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / fs / xfs / xfs_trans_inode.c

diff --git a/kernel/fs/xfs/xfs_trans_inode.c b/kernel/fs/xfs/xfs_trans_inode.c
index 17280cd..b97f1df 100644 (file)
--- a/kernel/fs/xfs/xfs_trans_inode.c
+++ b/kernel/fs/xfs/xfs_trans_inode.c
@@ -107,6 +107,15 @@ xfs_trans_log_inode(
        ASSERT(ip->i_itemp != NULL);
        ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
 
+       /*
+        * Record the specific change for fdatasync optimisation. This
+        * allows fdatasync to skip log forces for inodes that are only
+        * timestamp dirty. We do this before the change count so that
+        * the core being logged in this case does not impact on fdatasync
+        * behaviour.
+        */
+       ip->i_itemp->ili_fsync_fields |= flags;
+
        /*
         * First time we log the inode in a transaction, bump the inode change
         * counter if it is configured for this to occur. We don't use