From 033a64b56aed798991de18d226085dfb1ccd858d Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Fri, 5 Mar 2010 13:42:08 -0800
Subject: [PATCH] rmap: remove obsolete check from __page_check_anon_rmap()

When an anonymous page is inherited from a parent process, the
vma->anon_vma can differ from the page anon_vma.  This can trip up
__page_check_anon_rmap, which is indirectly called from do_swap_page().

Remove that obsolete check to prevent an oops.

Signed-off-by: Rik van Riel <riel@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Larry Woodman <lwoodman@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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