From: Darren Hart <dvhltc@us.ibm.com>
Date: Thu, 24 Sep 2009 18:54:47 +0000 (-0700)
Subject: futex: Add memory barrier commentary to futex_wait_queue_me()
X-Git-Tag: v2.6.32-rc1~13^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9beba3c54dd180a26a1da2027cfbe9edfaf9c40e;p=pandora-kernel.git

futex: Add memory barrier commentary to futex_wait_queue_me()

The memory barrier semantics of futex_wait_queue_me() are
non-obvious. Add some commentary to try and clarify it.

Signed-off-by: Darren Hart <dvhltc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Dinakar Guniguntala <dino@in.ibm.com>
Cc: John Stultz <johnstul@us.ibm.com>
LKML-Reference: <20090924185447.694.38948.stgit@Aeon>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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