drm/i915: Add compiler barrier to wait_for
We need to be careful to not let compiler evaluate the expiration and the operation on it's terms. Document and enforce that COND will be evaluated before checking timeout expiration. Suggested-by:Chris Wilson <chris@chris-wilson.co.uk> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180423113754.28424-2-mika.kuoppala@linux.intel.com
parent
3085982c
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