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drm/i915/gem: Reduce ctx->engines_mutex for get_engines()
authorChris Wilson <chris@chris-wilson.co.uk>
Thu, 14 Jan 2021 13:56:11 +0000 (13:56 +0000)
committerChris Wilson <chris@chris-wilson.co.uk>
Fri, 15 Jan 2021 08:00:03 +0000 (08:00 +0000)
commit20409fcf205340e9a0e0572f5431f61e5e14e046
tree39d96492c32f2d88b8f2cf3e16a4a76ac09ced96tree | snapshot
parent6e28f1f4001318706e29f9431503f6bb38d4e675commit | diff
drm/i915/gem: Reduce ctx->engines_mutex for get_engines()

Take a snapshot of the ctx->engines, so we can avoid taking the
ctx->engines_mutex for a mere read in get_engines().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210114135612.13210-4-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/gem/i915_gem_context.c diff | blob | history
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