From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Wed, 2 May 2007 17:27:15 +0000 (+0200)
Subject: [PATCH] i386: PARAVIRT: flush lazy mmu updates on kunmap_atomic
X-Git-Tag: v2.6.22-rc1~1011^2~85
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7b2f27f4e1818fad980da7bea688dca2b9e9c3f3;p=karo-tx-linux.git

[PATCH] i386: PARAVIRT: flush lazy mmu updates on kunmap_atomic

kunmap_atomic should flush any pending lazy mmu updates, mainly to be
consistent with kmap_atomic, and to preserve its normal behaviour.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Andi Kleen <ak@suse.de>
---

diff --git a/arch/i386/mm/highmem.c b/arch/i386/mm/highmem.c
index a1a21abf742e..ad8d86cc683e 100644
--- a/arch/i386/mm/highmem.c
+++ b/arch/i386/mm/highmem.c
@@ -72,6 +72,7 @@ void kunmap_atomic(void *kvaddr, enum km_type type)
 #endif
 	}
 
+	arch_flush_lazy_mmu_mode();
 	pagefault_enable();
 }