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Eliminate the acquisition and release of the page queues lock around a call

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to vm_page_sleep_if_busy().
This commit is contained in:
alc 2006-08-06 00:17:17 +00:00
parent 84c8fb9bd2
commit bc6eabeb88
1 changed files with 2 additions and 4 deletions
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6
sys/vm/vm_fault.c
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@ -389,10 +389,8 @@ RetryFault:;
VM_OBJECT_LOCK(fs.object);
if (fs.m == vm_page_lookup(fs.object,
fs.pindex)) {
vm_page_lock_queues();
if (!vm_page_sleep_if_busy(fs.m, TRUE,
"vmpfw"))
vm_page_unlock_queues();
vm_page_sleep_if_busy(fs.m, TRUE,
"vmpfw");
}
vm_object_pip_wakeup(fs.object);
VM_OBJECT_UNLOCK(fs.object);