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authorChris Wilson <chris@chris-wilson.co.uk>2016-12-23 14:58:04 +0000
committerJani Nikula <jani.nikula@intel.com>2017-01-03 11:41:57 +0200
commit2471eb5fb6e1433e28426ece235e3730348019ec (patch)
tree72c3347b2022652f8e539284ba6f265c454e6cd8 /net/lapb
parent64d1461ce0c3b8ecc1c6b61f4ad1c1d10ce971a3 (diff)
drm/i915: Prevent timeline updates whilst performing reset
As the fence may be signaled concurrently from an interrupt on another device, it is possible for the list of requests on the timeline to be modified as we walk it. Take both (the context's timeline and the global timeline) locks to prevent such modifications. Fixes: 80b204bce8f2 ("drm/i915: Enable multiple timelines") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: <drm-intel-fixes@lists.freedesktop.org> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161223145804.6605-10-chris@chris-wilson.co.uk (cherry picked from commit 00c25e3f40083a6d5f1111955baccd287ee49258) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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