From: David Gibson <david@gibson.dropbear.id.au>
Date: Tue, 7 Feb 2006 20:58:25 +0000 (-0800)
Subject: [PATCH] Hugepages need clear_user_highpage() not clear_highpage()
X-Git-Tag: v2.6.16-rc3~131
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a2dfef6947139db9b886fce510c4d0c913beb5f0;p=pandora-kernel.git

[PATCH] Hugepages need clear_user_highpage() not clear_highpage()

When hugepages are newly allocated to a file in mm/hugetlb.c, we clear them
with a call to clear_highpage() on each of the subpages.  We should be
using clear_user_highpage(): on powerpc, at least, clear_highpage() doesn't
correctly mark the page as icache dirty so if the page is executed shortly
after it's possible to get strange results.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Acked-by: William Lee Irwin III <wli@holomorphy.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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