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From: Alan Cox <alc@FreeBSD.org>
Date: Sat, 13 Jun 2009 20:58:13 +0000 (UTC)
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Subject: svn commit: r194126 - head/sys/vm
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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;