[PATCH 5.4 250/344] sched/core: Fix size of rq::uclamp initialization

Greg Kroah-Hartman
2020-02-21T08:12:09Z

From: Li Guanglei <guanglei.li@unisoc.com>

[ 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 <guanglei.li@unisoc.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Qais Yousef <qais.yousef@arm.com>
Link: https://lkml.kernel.org/r/1577259844-12677-1-git-send-email-guangleix.li@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 dfaefb175ba05..e6c65725b7ce0 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;
}

--
2.20.1