Author: jhb
Date: Fri Apr 29 17:35:28 2016
New Revision: 298790
URL: https://svnweb.freebsd.org/changeset/base/298790
Log:
Don't require write locks on the VM object for vm_page_prev/next.
Reviewed by: kib
Sponsored by: Chelsio Communications
Modified:
head/sys/vm/vm_page.c
Modified: head/sys/vm/vm_page.c
==============================================================================
--- head/sys/vm/vm_page.c Fri Apr 29 16:32:28 2016 (r298789)
+++ head/sys/vm/vm_page.c Fri Apr 29 17:35:28 2016 (r298790)
@@ -1283,7 +1283,7 @@ vm_page_next(vm_page_t m)
{
vm_page_t next;
- VM_OBJECT_ASSERT_WLOCKED(m->object);
+ VM_OBJECT_ASSERT_LOCKED(m->object);
if ((next = TAILQ_NEXT(m, listq)) != NULL &&
next->pindex != m->pindex + 1)
next = NULL;
@@ -1301,7 +1301,7 @@ vm_page_prev(vm_page_t m)
{
vm_page_t prev;
- VM_OBJECT_ASSERT_WLOCKED(m->object);
+ VM_OBJECT_ASSERT_LOCKED(m->object);
if ((prev = TAILQ_PREV(m, pglist, listq)) != NULL &&
prev->pindex != m->pindex - 1)
prev = NULL;
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