Author: kib
Date: Wed Jul 18 21:47:50 2012
New Revision: 238604
URL: http://svn.freebsd.org/changeset/base/238604
Log:
Do not restart scan of the inactive queue when non-inactive page is
found. Rather, we shall not find such pages on inactive queue at all.
Requested and reviewed by: alc
MFC after: 2 weeks
Modified:
head/sys/vm/vm_pageout.c
Modified: head/sys/vm/vm_pageout.c
==============================================================================
--- head/sys/vm/vm_pageout.c Wed Jul 18 21:30:17 2012 (r238603)
+++ head/sys/vm/vm_pageout.c Wed Jul 18 21:47:50 2012 (r238604)
@@ -921,7 +921,6 @@ vm_pageout_scan(int pass)
maxlaunder = 10000;
vm_page_lock_queues();
queues_locked = TRUE;
-rescan0:
addl_page_shortage = addl_page_shortage_init;
maxscan = cnt.v_inactive_count;
@@ -930,12 +929,9 @@ rescan0:
m = next) {
KASSERT(queues_locked, ("unlocked queues"));
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
+ KASSERT(m->queue == PQ_INACTIVE, ("Inactive queue %p", m));
cnt.v_pdpages++;
-
- if (m->queue != PQ_INACTIVE)
- goto rescan0;
-
next = TAILQ_NEXT(m, pageq);
/*
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