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authorPeter Zijlstra <peterz@infradead.org>2017-09-07 17:03:53 +0200
committerIngo Molnar <mingo@kernel.org>2017-09-12 17:41:04 +0200
commit9469eb01db891b55367ee7539f1b9f7f6fd2819d (patch)
treedfe475d30b69b6e43b8ed1be0505f08123fee653 /kernel/sched/debug.c
parent4ff9083b8a9a80bdf4ebbbec22cda4cbfb60f7aa (diff)
downloadlinux-9469eb01db891b55367ee7539f1b9f7f6fd2819d.tar.gz
sched/debug: Add debugfs knob for "sched_debug"
I'm forever late for editing my kernel cmdline, add a runtime knob to
disable the "sched_debug" thing.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170907150614.142924283@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/debug.c')
-rw-r--r--kernel/sched/debug.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 4a23bbc3111b..b19d06ea6e10 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -181,11 +181,16 @@ static const struct file_operations sched_feat_fops = {
 	.release	= single_release,
 };
 
+__read_mostly bool sched_debug_enabled;
+
 static __init int sched_init_debug(void)
 {
 	debugfs_create_file("sched_features", 0644, NULL, NULL,
 			&sched_feat_fops);
 
+	debugfs_create_bool("sched_debug", 0644, NULL,
+			&sched_debug_enabled);
+
 	return 0;
 }
 late_initcall(sched_init_debug);