From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Sat, 11 Aug 2012 14:41:05 +0000 (+0100)
Subject: drm/i915: Protect private gem objects from truncate (such as imported dmabuf)
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~20^2~30^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d6294bf77834276d41b51154a18663b0a8f2063;p=pandora-kernel.git

drm/i915: Protect private gem objects from truncate (such as imported dmabuf)

If the object has no backing shmemfs filp, then we obviously cannot
perform a truncation operation upon it.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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