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Fix a significant error in the accounting for pre-zeroed pages. This

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is a candidate for RELENG_2_2...
This commit is contained in:
John Dyson 1997-03-23 02:44:54 +00:00
parent 538efd5320
commit c5d593ae63
1 changed files with 6 additions and 5 deletions
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11
sys/vm/vm_page.c
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@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)vm_page.c 7.4 (Berkeley) 5/7/91
* $Id$
* $Id: vm_page.c,v 1.76 1997/02/22 09:48:31 peter Exp $
*/
/*
@ -734,7 +734,7 @@ vm_page_alloc(object, pindex, page_req)
{
register vm_page_t m;
struct vpgqueues *pq;
int queue;
int queue, qtype;
int s;
#ifdef DIAGNOSTIC
@ -835,15 +835,16 @@ vm_page_alloc(object, pindex, page_req)
}
queue = m->queue;
if (queue == PQ_ZERO)
qtype = queue - m->pc;
if (qtype == PQ_ZERO)
--vm_page_zero_count;
pq = &vm_page_queues[queue];
TAILQ_REMOVE(pq->pl, m, pageq);
--(*pq->cnt);
--(*pq->lcnt);
if ((m->queue - m->pc) == PQ_ZERO) {
if (qtype == PQ_ZERO) {
m->flags = PG_ZERO|PG_BUSY;
} else if ((m->queue - m->pc) == PQ_CACHE) {
} else if (qtype == PQ_CACHE) {
vm_page_remove(m);
m->flags = PG_BUSY;
} else {