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| author |   Peter Zijlstra <peterz@infradead.org> | 2020-08-12 12:27:10 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2020-08-26 12:41:54 +0200 |
| commit | 9864f5b5943ab0f1f835f21dc3f9f068d06f5b52 (patch) | |
| tree | a2416a792abbf0f2bf7699b2918b33c3c7874b9e /arch/s390/kernel/idle.c | |
| parent | cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic (diff) | |
| download | linux-dev-9864f5b5943ab0f1f835f21dc3f9f068d06f5b52.tar.xz linux-dev-9864f5b5943ab0f1f835f21dc3f9f068d06f5b52.zip | |
cpuidle: Move trace_cpu_idle() into generic code
Remove trace_cpu_idle() from the arch_cpu_idle() implementations and
put it in the generic code, right before disabling RCU. Gets rid of
more trace_*_rcuidle() users.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.428433395@infradead.org
Diffstat (limited to 'arch/s390/kernel/idle.c')
| -rw-r--r-- | arch/s390/kernel/idle.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/s390/kernel/idle.c b/arch/s390/kernel/idle.c index 88bb42ca5008..c73f50649e7e 100644 --- a/arch/s390/kernel/idle.c +++ b/arch/s390/kernel/idle.c @@ -33,14 +33,13 @@ void enabled_wait(void) PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK; clear_cpu_flag(CIF_NOHZ_DELAY); - trace_cpu_idle_rcuidle(1, smp_processor_id()); local_irq_save(flags); /* Call the assembler magic in entry.S */ psw_idle(idle, psw_mask); local_irq_restore(flags); - trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id()); /* Account time spent with enabled wait psw loaded as idle time. */ + /* XXX seqcount has tracepoints that require RCU */ write_seqcount_begin(&idle->seqcount); idle_time = idle->clock_idle_exit - idle->clock_idle_enter; idle->clock_idle_enter = idle->clock_idle_exit = 0ULL; |