From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Tue, 6 Nov 2012 13:39:43 +0000 (+0100)
Subject: drm/ttm: alter cpu_writers to return -EBUSY in ttm_execbuf_util reservations
X-Git-Tag: v3.8-rc1~82^2~146
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=654aa79259a19f0d5e3cf9cb20aff56dc3b041b7;p=pandora-kernel.git

drm/ttm: alter cpu_writers to return -EBUSY in ttm_execbuf_util reservations

This is similar to other platforms that don't allow command submission
to buffers locked on the cpu.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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