From 9888a1cae3f859db38b9604e3df1c02177161bb0 Mon Sep 17 00:00:00 2001
From: Zachary Amsden <zach@vmware.com>
Date: Sat, 30 Sep 2006 23:29:31 -0700
Subject: [PATCH] paravirt: pte clear not present

Change pte_clear_full to a more appropriately named pte_clear_not_present,
allowing optimizations when not-present mapping changes need not be reflected
in the hardware TLB for protected page table modes.  There is also another
case that can use it in the fremap code.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 mm/fremap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'mm/fremap.c')

diff --git a/mm/fremap.c b/mm/fremap.c
index aa30618ec6b..7a9d0f5d246 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -39,7 +39,7 @@ static int zap_pte(struct mm_struct *mm, struct vm_area_struct *vma,
 	} else {
 		if (!pte_file(pte))
 			free_swap_and_cache(pte_to_swp_entry(pte));
-		pte_clear(mm, addr, ptep);
+		pte_clear_not_present_full(mm, addr, ptep, 0);
 	}
 	return !!page;
 }
-- 
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