From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 4 Jan 2011 22:22:56 +0000 (+0000)
Subject: drm/i915/ringbuffer: Simplify the ring irq refcounting
X-Git-Tag: v2.6.38-rc1~398^2~2^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=01a03331e5fe91861937f8b8e72c259f5e9eae67;p=pandora-kernel.git

drm/i915/ringbuffer: Simplify the ring irq refcounting

... and move it under the spinlock to gain the appropriate memory
barriers.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32752
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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