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As documented in vm_page.h, updates to the vm_page's flags no longer

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require the page queues lock.

MFC after:	1 week
This commit is contained in:
Alan Cox 2012-04-21 18:26:16 +00:00
parent edfe67eab7
commit 2aa163dc57
1 changed files with 4 additions and 7 deletions
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11
sys/vm/vm_page.c
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@ -2155,13 +2155,10 @@ vm_page_unwire(vm_page_t m, int activate)
if ((m->oflags & VPO_UNMANAGED) != 0 ||
m->object == NULL)
return;
vm_page_lock_queues();
if (activate)
vm_page_enqueue(PQ_ACTIVE, m);
else {
if (!activate)
m->flags &= ~PG_WINATCFLS;
vm_page_enqueue(PQ_INACTIVE, m);
}
vm_page_lock_queues();
vm_page_enqueue(activate ? PQ_ACTIVE : PQ_INACTIVE, m);
vm_page_unlock_queues();
}
} else
@ -2201,8 +2198,8 @@ _vm_page_deactivate(vm_page_t m, int athead)
if ((queue = m->queue) == PQ_INACTIVE)
return;
if (m->wire_count == 0 && (m->oflags & VPO_UNMANAGED) == 0) {
vm_page_lock_queues();
m->flags &= ~PG_WINATCFLS;
vm_page_lock_queues();
if (queue != PQ_NONE)
vm_page_queue_remove(queue, m);
if (athead)