return !event->cgrp || event->cgrp == cpuctx->cgrp;
}
-static inline void perf_get_cgroup(struct perf_event *event)
+static inline bool perf_tryget_cgroup(struct perf_event *event)
{
- css_get(&event->cgrp->css);
+ return css_tryget(&event->cgrp->css);
}
static inline void perf_put_cgroup(struct perf_event *event)
event->cgrp = cgrp;
/* must be done before we fput() the file */
- perf_get_cgroup(event);
+ if (!perf_tryget_cgroup(event)) {
+ event->cgrp = NULL;
+ ret = -ENOENT;
+ goto out;
+ }
/*
* all events in a group must monitor
event = event->group_leader;
perf_event_for_each_child(event, func);
- func(event);
list_for_each_entry(sibling, &event->sibling_list, group_entry)
perf_event_for_each_child(sibling, func);
mutex_unlock(&ctx->mutex);
if (rctx < 0)
return;
- perf_sample_data_init(&data, addr);
+ perf_sample_data_init(&data, addr, 0);
do_perf_sw_event(PERF_TYPE_SOFTWARE, event_id, nr, &data, regs);
.data = record,
};
- perf_sample_data_init(&data, addr);
+ perf_sample_data_init(&data, addr, 0);
data.raw = &raw;
hlist_for_each_entry_rcu(event, node, head, hlist_entry) {
struct perf_sample_data sample;
struct pt_regs *regs = data;
- perf_sample_data_init(&sample, bp->attr.bp_addr);
+ perf_sample_data_init(&sample, bp->attr.bp_addr, 0);
if (!bp->hw.state && !perf_exclude_event(bp, regs))
perf_swevent_event(bp, 1, &sample, regs);
event->pmu->read(event);
- perf_sample_data_init(&data, 0);
- data.period = event->hw.last_period;
+ perf_sample_data_init(&data, 0, event->hw.last_period);
regs = get_irq_regs();
if (regs && !perf_exclude_event(event, regs)) {
if (!(event->attr.exclude_idle && is_idle_task(current)))
- if (perf_event_overflow(event, &data, regs))
+ if (__perf_event_overflow(event, 1, &data, regs))
ret = HRTIMER_NORESTART;
}