svn commit: r194126 - head/sys/vm
Alan Cox
alc at FreeBSD.org
Sat Jun 13 20:58:14 UTC 2009
Author: alc
Date: Sat Jun 13 20:58:12 2009
New Revision: 194126
URL: http://svn.freebsd.org/changeset/base/194126
Log:
Eliminate an unnecessary clearing of a page's dirty bits in
phys_pager_getpages().
Modified:
head/sys/vm/phys_pager.c
Modified: head/sys/vm/phys_pager.c
==============================================================================
--- head/sys/vm/phys_pager.c Sat Jun 13 20:54:17 2009 (r194125)
+++ head/sys/vm/phys_pager.c Sat Jun 13 20:58:12 2009 (r194126)
@@ -149,7 +149,8 @@ phys_pager_getpages(vm_object_t object,
}
KASSERT(m[i]->valid == VM_PAGE_BITS_ALL,
("phys_pager_getpages: partially valid page %p", m[i]));
- m[i]->dirty = 0;
+ KASSERT(m[i]->dirty == 0,
+ ("phys_pager_getpages: dirty page %p", m[i]));
/* The requested page must remain busy, the others not. */
if (reqpage != i) {
m[i]->oflags &= ~VPO_BUSY;
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