drm/i915/dmabuf: Acquire the backing storage outside of struct_mutex

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Use the per-object mm.lock to allocate the backing storage (and hold a
reference to it across the dmabuf access) without resorting to
struct_mutex.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-15-chris@chris-wilson.co.uk

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Chris Wilson 2016-10-28 13:58:38 +01:00

parent 1233e2db19

commit 7dd737f377

1 changed files with 30 additions and 39 deletions

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drivers/gpu/drm/i915/i915_gem_dmabuf.c

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