Author: alc
Date: Wed Apr 28 06:34:47 2010
New Revision: 207308
URL: http://svn.freebsd.org/changeset/base/207308
Log:
Setting PG_REFERENCED on a page at the end of vm_fault() is redundant since
the page table entry's accessed bit is either preset by the immediately
preceding call to pmap_enter() or by hardware (or software) upon return
from vm_fault() when the faulting access is restarted.
Modified:
head/sys/vm/vm_fault.c
Modified: head/sys/vm/vm_fault.c
==============================================================================
--- head/sys/vm/vm_fault.c Wed Apr 28 05:33:59 2010 (r207307)
+++ head/sys/vm/vm_fault.c Wed Apr 28 06:34:47 2010 (r207308)
@@ -924,7 +924,6 @@ vnode_locked:
vm_fault_prefault(fs.map->pmap, vaddr, fs.entry);
VM_OBJECT_LOCK(fs.object);
vm_page_lock_queues();
- vm_page_flag_set(fs.m, PG_REFERENCED);
/*
* If the page is not wired down, then put it where the pageout daemon
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