From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Mon, 2 May 2011 07:59:02 +0000 (+0000)
Subject: dmaengine: shdma: synchronize RCU before freeing, simplify spinlock
X-Git-Tag: v3.0-rc1~320^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=31705e21f9b5a0628c043f88ff4d20488b47b8ab;p=pandora-kernel.git

dmaengine: shdma: synchronize RCU before freeing, simplify spinlock

List elements, deleted using list_del_rcu(), cannot be freed without
synchronising RCU. Further, the spinlock, used to protect the RCU
writer, is called in process context, so, we don't have to save flags.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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