svn commit: r325033 - stable/11/sys/vm
Konstantin Belousov
kib at FreeBSD.org
Fri Oct 27 08:53:11 UTC 2017
Author: kib
Date: Fri Oct 27 08:53:09 2017
New Revision: 325033
URL: https://svnweb.freebsd.org/changeset/base/325033
Log:
MFC r324793:
In vm_page_free_phys_pglist(), do not take vm_page_queue_free_mtx if
there is nothing to do.
Modified:
stable/11/sys/vm/vm_page.c
Directory Properties:
stable/11/ (props changed)
Modified: stable/11/sys/vm/vm_page.c
==============================================================================
--- stable/11/sys/vm/vm_page.c Fri Oct 27 05:04:29 2017 (r325032)
+++ stable/11/sys/vm/vm_page.c Fri Oct 27 08:53:09 2017 (r325033)
@@ -2848,6 +2848,8 @@ vm_page_free_phys_pglist(struct pglist *tq)
{
vm_page_t m;
+ if (TAILQ_EMPTY(tq))
+ return;
mtx_lock(&vm_page_queue_free_mtx);
TAILQ_FOREACH(m, tq, listq)
vm_page_free_phys(m);
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