From: Sebastian Andrzej Siewior Date: Tue, 14 Jul 2015 14:26:34 +0200 Subject: gpu/i915: don't open code these things Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.4/patches-4.4.1-rt6.tar.xz The opencode part is gone in 1f83fee0 ("drm/i915: clear up wedged transitions") the owner check is still there. Signed-off-by: Sebastian Andrzej Siewior --- drivers/gpu/drm/i915/i915_gem_shrinker.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/i915/i915_gem_shrinker.c +++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c @@ -39,7 +39,7 @@ static bool mutex_is_locked_by(struct mu if (!mutex_is_locked(mutex)) return false; -#if defined(CONFIG_SMP) || defined(CONFIG_DEBUG_MUTEXES) +#if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_MUTEXES)) && !defined(CONFIG_PREEMPT_RT_BASE) return mutex->owner == task; #else /* Since UP may be pre-empted, we cannot assume that we own the lock */