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Date: Tue, 27 May 2014 17:22:05 -0700 From: Cody P Schafer <dev@...yps.com> To: LKML <linux-kernel@...r.kernel.org>, Linux PPC <linuxppc-dev@...ts.ozlabs.org>, Arnaldo Carvalho de Melo <acme@...nel.org>, Ingo Molnar <mingo@...hat.com>, Paul Mackerras <paulus@...ba.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl> Cc: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>, Cody P Schafer <dev@...yps.com> Subject: [PATCH 10/16] perf: provide sysfs_show for struct perf_pmu_events_attr (struct perf_pmu_events_attr) is defined in include/linux/perf_event.h, but the only "show" for it is in x86 and contains x86 specific stuff. Make a generic one for those of us who are just using the event_str. CC: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com> Signed-off-by: Cody P Schafer <dev@...yps.com> --- include/linux/perf_event.h | 3 +++ kernel/events/core.c | 8 ++++++++ 2 files changed, 11 insertions(+) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 3356abc..6c1d6dd 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -867,6 +867,9 @@ struct perf_pmu_events_attr { const char *event_str; }; +ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr, + char *page); + #define PMU_EVENT_ATTR(_name, _var, _id, _show) \ static struct perf_pmu_events_attr _var = { \ .attr = __ATTR(_name, 0444, _show, NULL), \ diff --git a/kernel/events/core.c b/kernel/events/core.c index f83a71a..6830e21 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -7971,6 +7971,14 @@ void __init perf_event_init(void) != 1024); } +ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr, + char *page) +{ + struct perf_pmu_events_attr *pmu_attr = + container_of(attr, struct perf_pmu_events_attr, attr); + return sprintf(page, "%s\n", pmu_attr->event_str); +} + static int __init perf_event_sysfs_init(void) { struct pmu *pmu; -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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