zfsctl: No need to sync ctldir inodes

There's no metadata to write to disk for ctldir inodes. So we check if a inode belongs to the ctldir in zpl_commit_metadata, and returns immediately if it is. Signed-off-by: Andrey Vesnovaty <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Issue openzfs#2797
JKDingwall · Jul 26, 2016 · d63dbc4 · d63dbc4
1 parent d1ac3e1
commit d63dbc4
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/module/zfs/zpl_export.c b/module/zfs/zpl_export.c
@@ -139,6 +139,9 @@ zpl_commit_metadata(struct inode *inode)
 	fstrans_cookie_t cookie;
 	int error;
 
+	if (zfsctl_is_node(inode))
+		return (0);
+
 	crhold(cr);
 	cookie = spl_fstrans_mark();
 	error = -zfs_fsync(inode, 0, cr);