diff options
| author | Pavel Tatashin <pasha.tatashin@oracle.com> | 2018-07-19 16:55:43 -0400 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-07-20 00:02:43 +0200 |
| commit | 46457ea464f5341d1f9dad8dd213805d45f7f117 (patch) | |
| tree | 316f05b91ec512ef269e8bdd0cc89e7ea062e0f3 /kernel/sched/debug.c | |
| parent | 857baa87b6422bcfb84ed3631d6839920cb5b09d (diff) | |
sched/clock: Use static key for sched_clock_running
sched_clock_running may be read every time sched_clock_cpu() is called.
Yet, this variable is updated only twice during boot, and never changes
again, therefore it is better to make it a static key.
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: steven.sistare@oracle.com
Cc: daniel.m.jordan@oracle.com
Cc: linux@armlinux.org.uk
Cc: schwidefsky@de.ibm.com
Cc: heiko.carstens@de.ibm.com
Cc: john.stultz@linaro.org
Cc: sboyd@codeaurora.org
Cc: hpa@zytor.com
Cc: douly.fnst@cn.fujitsu.com
Cc: prarit@redhat.com
Cc: feng.tang@intel.com
Cc: pmladek@suse.com
Cc: gnomes@lxorguk.ukuu.org.uk
Cc: linux-s390@vger.kernel.org
Cc: boris.ostrovsky@oracle.com
Cc: jgross@suse.com
Cc: pbonzini@redhat.com
Link: https://lkml.kernel.org/r/20180719205545.16512-25-pasha.tatashin@oracle.com
Diffstat (limited to 'kernel/sched/debug.c')
| -rw-r--r-- | kernel/sched/debug.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index e593b4118578..b0212f489a33 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -623,8 +623,6 @@ void print_dl_rq(struct seq_file *m, int cpu, struct dl_rq *dl_rq) #undef PU } -extern __read_mostly int sched_clock_running; - static void print_cpu(struct seq_file *m, int cpu) { struct rq *rq = cpu_rq(cpu); |