diff options
| author | Frederic Weisbecker <fweisbec@gmail.com> | 2017-01-31 06:09:47 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-02-01 11:14:03 +0300 |
| commit | 42b425b3360a20ed08e0d735623f389bdf5e4500 (patch) | |
| tree | 8e67c6bcf5f10c45fe16c5101ef781dc69a90348 /arch/s390/kernel/idle.c | |
| parent | c833d82df73483c1716243bcd9cb5b6fef94621f (diff) | |
| download | linux-42b425b3360a20ed08e0d735623f389bdf5e4500.tar.xz | |
s390, sched/cputime: Make arch_cpu_idle_time() to return nsecs
This way we don't need to deal with cputime_t details from the core code.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Stanislaw Gruszka <sgruszka@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Wanpeng Li <wanpeng.li@hotmail.com>
Link: http://lkml.kernel.org/r/1485832191-26889-32-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/s390/kernel/idle.c')
| -rw-r--r-- | arch/s390/kernel/idle.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/s390/kernel/idle.c b/arch/s390/kernel/idle.c index 5c0e08e761c3..d3bf69ef42cf 100644 --- a/arch/s390/kernel/idle.c +++ b/arch/s390/kernel/idle.c @@ -84,7 +84,7 @@ static ssize_t show_idle_time(struct device *dev, } DEVICE_ATTR(idle_time_us, 0444, show_idle_time, NULL); -cputime64_t arch_cpu_idle_time(int cpu) +u64 arch_cpu_idle_time(int cpu) { struct s390_idle_data *idle = &per_cpu(s390_idle, cpu); unsigned long long now, idle_enter, idle_exit; @@ -96,7 +96,8 @@ cputime64_t arch_cpu_idle_time(int cpu) idle_enter = ACCESS_ONCE(idle->clock_idle_enter); idle_exit = ACCESS_ONCE(idle->clock_idle_exit); } while (read_seqcount_retry(&idle->seqcount, seq)); - return idle_enter ? ((idle_exit ?: now) - idle_enter) : 0; + + return cputime_to_nsecs(idle_enter ? ((idle_exit ?: now) - idle_enter) : 0); } void arch_cpu_idle_enter(void) |