svn commit: r356879 - head/sys/kern

[Mateusz Guzik]

Author: mjg
Date: Sun Jan 19 05:36:45 2020
New Revision: 356879
URL: https://svnweb.freebsd.org/changeset/base/356879

Log:
  vfs: plug a conditional assigment of lo_name in getnewvnode
  
  It only matters for witness. No functional changes.

Modified:
  head/sys/kern/vfs_subr.c

Modified: head/sys/kern/vfs_subr.c
==============================================================================
--- head/sys/kern/vfs_subr.c	Sun Jan 19 04:13:19 2020	(r356878)
+++ head/sys/kern/vfs_subr.c	Sun Jan 19 05:36:45 2020	(r356879)
@@ -1669,11 +1669,15 @@ getnewvnode(const char *tag, struct mount *mp, struct 
 	 * that we can compare pointers rather than doing a strcmp().
 	 */
 	lo = &vp->v_vnlock->lock_object;
+#ifdef WITNESS
 	if (lo->lo_name != tag) {
+#endif
 		lo->lo_name = tag;
+#ifdef WITNESS
 		WITNESS_DESTROY(lo);
 		WITNESS_INIT(lo, tag);
 	}
+#endif
 	/*
 	 * By default, don't allow shared locks unless filesystems opt-in.
 	 */