linux-kernel - Re: [PATCH 2/8] perf core: export swevent hrtimer helpers

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Message-Id: <20140201055806.2F7132C00B1@ozlabs.org>
Date:	Sat,  1 Feb 2014 16:58:06 +1100 (EST)
From:	Michael Ellerman <mpe@...erman.id.au>
To:	Cody P Schafer <cody@...ux.vnet.ibm.com>,
	Linux PPC <linuxppc-dev@...ts.ozlabs.org>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Paul Mackerras <paulus@...ba.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Cody P Schafer <cody@...ux.vnet.ibm.com>
Subject: Re: [PATCH 2/8] perf core: export swevent hrtimer helpers

Peter, Ingo, can we get your ACK on this please?

cheers


On Thu, 2014-16-01 at 23:53:48 UTC, Cody P Schafer wrote:
> Export the swevent hrtimer helpers currently only used in events/core.c
> to allow the addition of architecture specific sw-like pmus.

> Signed-off-by: Cody P Schafer <cody@...ux.vnet.ibm.com>
> ---
>  include/linux/perf_event.h | 5 ++++-
>  kernel/events/core.c       | 8 ++++----
>  2 files changed, 8 insertions(+), 5 deletions(-)
> 
> diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
> index 8646e33..c5bc71a 100644
> --- a/include/linux/perf_event.h
> +++ b/include/linux/perf_event.h
> @@ -558,7 +558,10 @@ extern void perf_pmu_migrate_context(struct pmu *pmu,
>  				int src_cpu, int dst_cpu);
>  extern u64 perf_event_read_value(struct perf_event *event,
>  				 u64 *enabled, u64 *running);
> -
> +extern void perf_swevent_init_hrtimer(struct perf_event *event);
> +extern void perf_swevent_start_hrtimer(struct perf_event *event);
> +extern void perf_swevent_cancel_hrtimer(struct perf_event *event);
> +extern int perf_swevent_event_idx(struct perf_event *event);
>  
>  struct perf_sample_data {
>  	u64				type;
> diff --git a/kernel/events/core.c b/kernel/events/core.c
> index f574401..d881d1e 100644
> --- a/kernel/events/core.c
> +++ b/kernel/events/core.c
> @@ -5801,7 +5801,7 @@ static int perf_swevent_init(struct perf_event *event)
>  	return 0;
>  }
>  
> -static int perf_swevent_event_idx(struct perf_event *event)
> +int perf_swevent_event_idx(struct perf_event *event)
>  {
>  	return 0;
>  }
> @@ -6030,7 +6030,7 @@ static enum hrtimer_restart perf_swevent_hrtimer(struct hrtimer *hrtimer)
>  	return ret;
>  }
>  
> -static void perf_swevent_start_hrtimer(struct perf_event *event)
> +void perf_swevent_start_hrtimer(struct perf_event *event)
>  {
>  	struct hw_perf_event *hwc = &event->hw;
>  	s64 period;
> @@ -6052,7 +6052,7 @@ static void perf_swevent_start_hrtimer(struct perf_event *event)
>  				HRTIMER_MODE_REL_PINNED, 0);
>  }
>  
> -static void perf_swevent_cancel_hrtimer(struct perf_event *event)
> +void perf_swevent_cancel_hrtimer(struct perf_event *event)
>  {
>  	struct hw_perf_event *hwc = &event->hw;
>  
> @@ -6064,7 +6064,7 @@ static void perf_swevent_cancel_hrtimer(struct perf_event *event)
>  	}
>  }
>  
> -static void perf_swevent_init_hrtimer(struct perf_event *event)
> +void perf_swevent_init_hrtimer(struct perf_event *event)
>  {
>  	struct hw_perf_event *hwc = &event->hw;
>  
> -- 
> 1.8.5.2
> 
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@...ts.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev
> 
> 
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