From: Andi Kleen <andi@firstfloor.org>
Date: Tue, 8 Dec 2009 12:19:42 +0000 (+0100)
Subject: futex: Take mmap_sem for get_user_pages in fault_in_user_writeable
X-Git-Tag: v2.6.33-rc1~303^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=722d0172377a5697919b9f7e5beb95165b1dec4e;p=pandora-kernel.git

futex: Take mmap_sem for get_user_pages in fault_in_user_writeable

get_user_pages() must be called with mmap_sem held.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: stable@kernel.org
Cc: Andrew Morton <akpm@linuxfoundation.org>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Darren Hart <dvhltc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20091208121942.GA21298@basil.fritz.box>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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