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authorBrendan Jackman <brendan.jackman@arm.com>2017-10-05 12:45:13 +0100
committerIngo Molnar <mingo@kernel.org>2017-10-10 11:45:34 +0200
commite90381eaecf6d59c60fe396838e0e99789531419 (patch)
treeab4d16e3c62defcbcc510fe43e74a8199d29d089
parent18bd1b4bd53aba81d76d55e91a68310a227dc187 (diff)
sched/fair: Remove unnecessary comparison with -1
Since commit: 83a0a96a5f26 ("sched/fair: Leverage the idle state info when choosing the "idlest" cpu") find_idlest_group_cpu() (formerly find_idlest_cpu) no longer returns -1, so we can simplify the checking of the return value in find_idlest_cpu(). Signed-off-by: Brendan Jackman <brendan.jackman@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Josef Bacik <jbacik@fb.com> Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Josef Bacik <josef@toxicpanda.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Morten Rasmussen <morten.rasmussen@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20171005114516.18617-3-brendan.jackman@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rw-r--r--kernel/sched/fair.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index dd4f25305604..bdd28fbad7a3 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5933,7 +5933,7 @@ static inline int find_idlest_cpu(struct sched_domain *sd, struct task_struct *p
}
new_cpu = find_idlest_group_cpu(group, p, cpu);
- if (new_cpu == -1 || new_cpu == cpu) {
+ if (new_cpu == cpu) {
/* Now try balancing at a lower domain level of cpu */
sd = sd->child;
continue;