[PATCH] cgroup/cpuset: drop useless cpumask_empty() in compute_effective_exclusive_cpumask()

[Yury Norov]

Empty cpumasks can't intersect with any others. Therefore, testing for
non-emptyness is useless.

Signed-off-by: Yury Norov <yury.norov@xxxxxxxxx>
---
 kernel/cgroup/cpuset.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 306b60430091..df308072f268 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -1388,14 +1388,12 @@ static int compute_effective_exclusive_cpumask(struct cpuset *cs,
 		if (sibling == cs)
 			continue;
 
-		if (!cpumask_empty(sibling->exclusive_cpus) &&
-		    cpumask_intersects(xcpus, sibling->exclusive_cpus)) {
+		if (cpumask_intersects(xcpus, sibling->exclusive_cpus)) {
 			cpumask_andnot(xcpus, xcpus, sibling->exclusive_cpus);
 			retval++;
 			continue;
 		}
-		if (!cpumask_empty(sibling->effective_xcpus) &&
-		    cpumask_intersects(xcpus, sibling->effective_xcpus)) {
+		if (cpumask_intersects(xcpus, sibling->effective_xcpus)) {
 			cpumask_andnot(xcpus, xcpus, sibling->effective_xcpus);
 			retval++;
 		}
-- 
2.43.0