From: Andrew Morton <akpm@osdl.org>
Date: Sat, 24 Dec 2005 03:54:46 +0000 (-0800)
Subject: [PATCH] Fix memory ordering problem in wake_futex()
X-Git-Tag: v2.6.15-rc7~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e31108b9f41069d55cb9b019ac8262c55fd2616;p=pandora-kernel.git

[PATCH] Fix memory ordering problem in wake_futex()

Fix a memory ordering problem that occurs on IA64. The "store" to q->lock_ptr
in wake_futex() can become visible before wake_up_all() clears the lock in the
futex_q.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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