From: Andi Kleen <ak@suse.de>
Date: Fri, 20 May 2005 21:27:57 +0000 (-0700)
Subject: [PATCH] x86_64: Fixed guard page handling again in iounmap
X-Git-Tag: v2.6.12-rc5~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7856dfeb23c16ef3d8dac8871b4d5b93c70b59b9;p=pandora-kernel.git

[PATCH] x86_64: Fixed guard page handling again in iounmap

Caused oopses again.  Also fix potential mismatch in checking if
change_page_attr was needed.

To do it without races I needed to change mm/vmalloc.c to export a
__remove_vm_area that does not take vmlist lock.

Noticed by Terence Ripperda and based on a patch of his.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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