drm/i915: Simplify releasing context reference
authorChris Wilson <chris@chris-wilson.co.uk>
Sun, 18 Dec 2016 15:37:21 +0000 (15:37 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Sun, 18 Dec 2016 16:18:53 +0000 (16:18 +0000)
commit69df05e11ab8c10e57bb5aaaa3e6d3d1b251b333
tree3379ae73970f6d9f492db95994179a8f3e6b356f
parente8a9c58fcd9a5081f71f57f370af1347ed6a310b
drm/i915: Simplify releasing context reference

A few users only take the struct_mutex in order to release a reference
to a context. We can expose a kref_put_mutex() wrapper in order to
simplify these users, and optimise taking of the mutex to the final
unref.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161218153724.8439-4-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_drv.h
drivers/gpu/drm/i915/i915_perf.c