From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date: Mon, 13 Apr 2015 15:03:03 +0000 (+0100)
Subject: drm/i915: Move drm_framebuffer_unreference out of struct_mutex for takeover
X-Git-Tag: omap-for-v4.2/o2_dc~72^2~2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0d6149b3debce1a7e17dfda7c2829935917dc58;p=pandora-kernel.git

drm/i915: Move drm_framebuffer_unreference out of struct_mutex for takeover

intel_user_framebuffer_destroy() requires the struct_mutex for its
object bookkeeping, so this means that all calls to
drm_framebuffer_unreference must be held without that lock.

This is a simplified version of the identically named patch by Chris Wilson.

    Regression from commit ab8d66752a9c28cd6c94fa173feacdfc1554aa03
    Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
    Date:   Mon Feb 2 15:44:15 2015 +0000

        drm/i915: Track old framebuffer instead of object

v2: Bikeshedding.

References: https://bugs.freedesktop.org/show_bug.cgi?id=89166
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---

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