From 5d13f62b9ef6b8bb2ba222bf776adbd3fe615454 Mon Sep 17 00:00:00 2001 From: Li Guanglei Date: Wed, 25 Dec 2019 15:44:04 +0800 Subject: [PATCH] sched/core: Fix size of rq::uclamp initialization [ Upstream commit dcd6dffb0a75741471297724640733fa4e958d72 ] rq::uclamp is an array of struct uclamp_rq, make sure we clear the whole thing. Fixes: 69842cba9ace ("sched/uclamp: Add CPU's clamp buckets refcountinga") Signed-off-by: Li Guanglei Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Qais Yousef Link: https://lkml.kernel.org/r/1577259844-12677-1-git-send-email-guangleix.li@gmail.com Signed-off-by: Sasha Levin --- kernel/sched/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index dfaefb175ba0..e6c65725b7ce 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1252,7 +1252,8 @@ static void __init init_uclamp(void) mutex_init(&uclamp_mutex); for_each_possible_cpu(cpu) { - memset(&cpu_rq(cpu)->uclamp, 0, sizeof(struct uclamp_rq)); + memset(&cpu_rq(cpu)->uclamp, 0, + sizeof(struct uclamp_rq)*UCLAMP_CNT); cpu_rq(cpu)->uclamp_flags = 0; }