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trace: Toggle irqsoff tracing to dmesg

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Allow tracing irqsoff to dmesg based on userspace tunable.

Change-Id: I36ca46c787d25ec08a6d050eed4ce0a23db26a1a
Signed-off-by: Sai Harshini Nimmala <snimmala@codeaurora.org>
This commit is contained in:
Sai Harshini Nimmala 2020-02-26 12:30:22 -08:00
commit dc28abd851
3 changed files with 25 additions and 3 deletions
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11
kernel/sysctl.c
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@ -141,6 +141,8 @@ static int ten_thousand = 10000;
#ifdef CONFIG_PERF_EVENTS
static int six_hundred_forty_kb = 640 * 1024;
#endif
static unsigned int __maybe_unused half_million = 500000;
static unsigned int __maybe_unused one_hundred_million = 100000000;
#ifdef CONFIG_SCHED_WALT
static int neg_three = -3;
static int three = 3;
@ -355,6 +357,15 @@ static struct ctl_table kern_table[] = {
.data = &sysctl_irqsoff_tracing_threshold_ns,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_douintvec_minmax,
.extra1 = &half_million,
.extra2 = &one_hundred_million,
},
{
.procname = "irqsoff_dmesg_output_enabled",
.data = &sysctl_irqsoff_dmesg_output_enabled,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec,
},
#endif