From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 26 Aug 2013 22:50:55 +0000 (-0300)
Subject: drm/i915: Pin pages whilst mapping the dma-buf
X-Git-Tag: v3.12-rc1~61^2~1^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5cfacdedb1a94efd29faeaab53f939554a3f5943;p=pandora-kernel.git

drm/i915: Pin pages whilst mapping the dma-buf

As we attempt to kmalloc after calling get_pages, there is a possibility
that the shrinker may reap the pages we just acquired. To prevent this
we need to increment the pages_pin_count early, so rearrange the code
and error paths to make it so.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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