From 00b29ff45534314b54a018aba0e9d9a11f3bac9a Mon Sep 17 00:00:00 2001 From: Pavankumar Kondeti Date: Thu, 2 Feb 2017 14:24:34 +0530 Subject: [PATCH] sysctl: disallow setting sched_time_avg_ms to 0 The sched average period can not be 0, disallow setting it to 0. Otherwise CPUs stuck in sched_avg_update(). Change-Id: Ib9fcc5b35dface09d848ba7a737dc4ac0f05d8ee Signed-off-by: Pavankumar Kondeti --- kernel/sysctl.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sysctl.c b/kernel/sysctl.c index a2a87c3ad44e..210d73fe7daa 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -591,7 +591,8 @@ static struct ctl_table kern_table[] = { .data = &sysctl_sched_time_avg, .maxlen = sizeof(unsigned int), .mode = 0644, - .proc_handler = proc_dointvec, + .proc_handler = proc_dointvec_minmax, + .extra1 = &one, }, { .procname = "sched_shares_window_ns",