Messages in this thread Patch in this message | | | From | Sukadev Bhattiprolu <> | Subject | [PATCH v6 1/7] perf: provide sysfs_show for struct perf_pmu_events_attr | Date | Sun, 21 Dec 2014 23:48:46 -0800 |
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From: Cody P Schafer <cody@linux.vnet.ibm.com>
(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@linux.vnet.ibm.com> CC: Haren Myneni <hbabu@us.ibm.com> CC: Cody P Schafer <dev@codyps.com> Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.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 486e84c..58f59bd 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -897,6 +897,9 @@ 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 af0a5ba..1808d0e 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -8276,6 +8276,14 @@ 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; -- 1.8.3.1
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