From: Christoph Lameter <clameter@engr.sgi.com>
Date: Mon, 5 Mar 2007 08:30:33 +0000 (-0800)
Subject: [PATCH] Page migration: Fix vma flag checking
X-Git-Tag: v2.6.21-rc3~82
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0dc952dc3e6d96d554a19fa7bee3f3b1d55e3cff;p=pandora-kernel.git

[PATCH] Page migration: Fix vma flag checking

Currently we do not check for vma flags if sys_move_pages is called to move
individual pages.  If sys_migrate_pages is called to move pages then we
check for vm_flags that indicate a non migratable vma but that still
includes VM_LOCKED and we can migrate mlocked pages.

Extract the vma_migratable check from mm/mempolicy.c, fix it and put it
into migrate.h so that is can be used from both locations.

Problem was spotted by Lee Schermerhorn

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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