diff options
| author | Joel Fernandes <joelaf@google.com> | 2016-11-28 14:35:23 -0800 |
|---|---|---|
| committer | Joel Fernandes <joelaf@google.com> | 2016-11-28 18:46:46 -0800 |
| commit | 5fe7d45f445841c6261e8695428a532db0e0377c (patch) | |
| tree | 776256b6c310836a600aeef8a20d06f92abbb39c /kernel/trace/trace.c | |
| parent | af80d7c3e91450fbcad01c497b394bf8ab01d37c (diff) | |
UPSTREAM: trace: Add an option for boot clock as trace clock
Unlike monotonic clock, boot clock as a trace clock will account for
time spent in suspend useful for tracing suspend/resume. This uses
earlier introduced infrastructure for using the fast boot clock.
Bug: b/33184060
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Joel Fernandes <joelaf@google.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 5f375d4c05fb..312557c04c10 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -890,6 +890,7 @@ static struct { { trace_clock, "perf", 1 }, { ktime_get_mono_fast_ns, "mono", 1 }, { ktime_get_raw_fast_ns, "mono_raw", 1 }, + { ktime_get_boot_fast_ns, "boot", 1 }, ARCH_TRACE_CLOCKS }; |