Author: alc
Date: Sat Jun 1 20:32:34 2013
New Revision: 251229
URL: http://svnweb.freebsd.org/changeset/base/251229
Log:
Now that access to the page's "act_count" field is synchronized by the page
lock instead of the object lock, there is no reason for vm_page_activate()
to assert that the object is locked for either read or write access.
(The "VPO_UNMANAGED" flag never changes after page allocation.)
Sponsored by: EMC / Isilon Storage Division
Modified:
head/sys/vm/vm_page.c
Modified: head/sys/vm/vm_page.c
==============================================================================
--- head/sys/vm/vm_page.c Sat Jun 1 19:07:03 2013 (r251228)
+++ head/sys/vm/vm_page.c Sat Jun 1 20:32:34 2013 (r251229)
@@ -1837,7 +1837,6 @@ vm_page_activate(vm_page_t m)
int queue;
vm_page_lock_assert(m, MA_OWNED);
- VM_OBJECT_ASSERT_WLOCKED(m->object);
if ((queue = m->queue) != PQ_ACTIVE) {
if (m->wire_count == 0 && (m->oflags & VPO_UNMANAGED) == 0) {
if (m->act_count < ACT_INIT)
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