Commit d650d1f5 authored Jul 03, 2019 by Chris Wilson

drm/i915: Markup potential lock for i915_active



Make the lockchains more deterministic via i915_active by flagging the
potential lock.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190703091726.11690-7-chris@chris-wilson.co.uk

parent c03467ba

drivers/gpu/drm/i915/i915_active.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -268,6 +268,8 @@ int i915_active_wait(struct i915_active *ref)
		int err;

		might_sleep();
		might_lock(&ref->mutex);

		if (RB_EMPTY_ROOT(&ref->tree))
		return 0;

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