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uvm_page_unbusy: add an assertion

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This commit is contained in:
yamt 2009-01-16 07:01:28 +00:00
parent ae07703384
commit 20c094eb67
1 changed files with 3 additions and 2 deletions
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5
sys/uvm/uvm_page.c
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@ -1,4 +1,4 @@
/* $NetBSD: uvm_page.c,v 1.141 2008/12/13 11:34:43 ad Exp $ */
/* $NetBSD: uvm_page.c,v 1.142 2009/01/16 07:01:28 yamt Exp $ */
/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
@ -71,7 +71,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: uvm_page.c,v 1.141 2008/12/13 11:34:43 ad Exp $");
__KERNEL_RCSID(0, "$NetBSD: uvm_page.c,v 1.142 2009/01/16 07:01:28 yamt Exp $");
#include "opt_uvmhist.h"
#include "opt_readahead.h"
@ -1514,6 +1514,7 @@ uvm_page_unbusy(struct vm_page **pgs, int npgs)
uvm_pagefree(pg);
} else {
UVMHIST_LOG(ubchist, "unbusying pg %p", pg,0,0,0);
KASSERT((pg->flags & PG_FAKE) == 0);
pg->flags &= ~(PG_WANTED|PG_BUSY);
UVM_PAGE_OWN(pg, NULL);
}