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authorIngo Molnar2016-04-23 14:12:10 +0200
committerIngo Molnar2016-04-23 14:12:10 +0200
commit65cbbd037b3d7be0a40bbdb5da9d43b0fccf17ee (patch)
tree02b22c99008630010f28f45f502f55915f1014c2 /kernel/events/core.c
parentMerge tag 'perf-core-for-mingo-20160415' of git://git.kernel.org/pub/scm/linu... (diff)
parentperf/core: Make sysctl_perf_cpu_time_max_percent conform to documentation (diff)
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Merge branch 'perf/urgent' into perf/core, to resolve conflict
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/events/core.c')
-rw-r--r--kernel/events/core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 8c3b35f2a269..21ba024c9ed1 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -412,7 +412,8 @@ int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
if (ret || !write)
return ret;
- if (sysctl_perf_cpu_time_max_percent == 100) {
+ if (sysctl_perf_cpu_time_max_percent == 100 ||
+ sysctl_perf_cpu_time_max_percent == 0) {
printk(KERN_WARNING
"perf: Dynamic interrupt throttling disabled, can hang your system!\n");
WRITE_ONCE(perf_sample_allowed_ns, 0);