From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Thu, 7 Dec 2006 04:32:22 +0000 (-0800)
Subject: [PATCH] Fix kunmap_atomic's use of kpte_clear_flush()
X-Git-Tag: v2.6.20-rc1~145^2^2~337
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3b17979bda74493633364c2c263b452b7788e350;p=pandora-kernel.git

[PATCH] Fix kunmap_atomic's use of kpte_clear_flush()

kunmap_atomic() will call kpte_clear_flush with vaddr/ptep arguments which
don't correspond if the vaddr is just a normal lowmem address (ie, not in
the KMAP area).  This patch makes sure that the pte is only cleared if kmap
area was actually used for the mapping.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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