From: Ben Skeggs <bskeggs@redhat.com>
Date: Mon, 13 May 2013 12:26:26 +0000 (+1000)
Subject: drm/nouveau/vm: take subdev mutex, not the mm, protects against race with vm/nvc0
X-Git-Tag: v3.11-rc1~65^2~23^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4e67bee8e129c072e5498bd192b9cb8aa7e62a89;p=pandora-kernel.git

drm/nouveau/vm: take subdev mutex, not the mm, protects against race with vm/nvc0

nvc0_vm_flush() accesses the pgd list, which will soon be able to race
with vm_unlink() during channel destruction.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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