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| author | Thomas Gleixner | 2015-04-14 23:08:34 +0200 |
|---|---|---|
| committer | Thomas Gleixner | 2015-04-22 17:06:49 +0200 |
| commit | a6ffebce7f89f6f97cc22838a5d4383b15d6774f (patch) | |
| tree | f739fa1d1501f25b883c21042ebe73aeba80a628 | |
| parent | hrtimer: Get rid of hrtimer_get_res() (diff) | |
| download | kernel-qcow2-linux-a6ffebce7f89f6f97cc22838a5d4383b15d6774f.tar.gz kernel-qcow2-linux-a6ffebce7f89f6f97cc22838a5d4383b15d6774f.tar.xz kernel-qcow2-linux-a6ffebce7f89f6f97cc22838a5d4383b15d6774f.zip | |
hrtimer: Make the statistics fields smaller
No point in having usigned long for /proc/timer_list statistics. Make
them unsigned int.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/20150414203500.959773467@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | include/linux/hrtimer.h | 8 | ||||
| -rw-r--r-- | kernel/time/hrtimer.c | 4 | ||||
| -rw-r--r-- | kernel/time/timer_list.c | 2 |
3 files changed, 7 insertions, 7 deletions
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 8025156c8fa1..d39f2847754c 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -187,10 +187,10 @@ struct hrtimer_cpu_base { int in_hrtirq; int hres_active; int hang_detected; - unsigned long nr_events; - unsigned long nr_retries; - unsigned long nr_hangs; - ktime_t max_hang_time; + unsigned int nr_events; + unsigned int nr_retries; + unsigned int nr_hangs; + unsigned int max_hang_time; #endif struct hrtimer_clock_base clock_base[HRTIMER_MAX_CLOCK_BASES]; }; diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 73131dab787e..874e0914eb3c 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -1327,8 +1327,8 @@ retry: cpu_base->hang_detected = 1; raw_spin_unlock(&cpu_base->lock); delta = ktime_sub(now, entry_time); - if (delta.tv64 > cpu_base->max_hang_time.tv64) - cpu_base->max_hang_time = delta; + if ((unsigned int)delta.tv64 > cpu_base->max_hang_time) + cpu_base->max_hang_time = (unsigned int) delta.tv64; /* * Limit it to a sensible value as we enforce a longer * delay. Give the CPU at least 100ms to catch up. diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c index bdd5e987f115..6232fc536185 100644 --- a/kernel/time/timer_list.c +++ b/kernel/time/timer_list.c @@ -165,7 +165,7 @@ static void print_cpu(struct seq_file *m, int cpu, u64 now) P(nr_events); P(nr_retries); P(nr_hangs); - P_ns(max_hang_time); + P(max_hang_time); #endif #undef P #undef P_ns |