drm/i915: Skip shrinking already freed pages

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Previously, we wanted to shrink the pages of freed objects before they
were finally RCU collected. However, by removing the struct_mutex
serialisation around the active reference, we need to acquire an extra
reference around the wait. Unfortunately this means that we have to skip
objects that are waiting RCU collection.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110937
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190618074153.16055-2-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2019-06-18 08:41:29 +01:00

parent 767662bc62

commit 0bd6cb6b58

2 changed files with 6 additions and 46 deletions

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47

drivers/gpu/drm/i915/gem/i915_gem_object.c

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5

drivers/gpu/drm/i915/gem/i915_gem_shrinker.c

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