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authoralc <alc@FreeBSD.org>2012-04-21 18:26:16 +0000
committeralc <alc@FreeBSD.org>2012-04-21 18:26:16 +0000
commitad5c747d1de39d9fdd7096a2314b7cb2eecb3448 (patch)
tree8c23956fc14fc5e1ae1c9bb93a2af83964a76a8c /sys/vm/vm_page.c
parent3675431b54d7120daef53592065aedf6b0edf86d (diff)
downloadFreeBSD-src-ad5c747d1de39d9fdd7096a2314b7cb2eecb3448.zip
FreeBSD-src-ad5c747d1de39d9fdd7096a2314b7cb2eecb3448.tar.gz
As documented in vm_page.h, updates to the vm_page's flags no longer
require the page queues lock. MFC after: 1 week
Diffstat (limited to 'sys/vm/vm_page.c')
-rw-r--r--sys/vm/vm_page.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c
index 65bb701..ee46503 100644
--- a/sys/vm/vm_page.c
+++ b/sys/vm/vm_page.c
@@ -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)
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