diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/events/core.c | 19 | ||||
| -rw-r--r-- | kernel/events/ring_buffer.c | 2 |
2 files changed, 20 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index b76bb498148e..da75e59e6642 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -3720,6 +3720,9 @@ static void __free_event(struct perf_event *event) if (event->destroy) event->destroy(event); + if (event->pmu->free_drv_configs) + event->pmu->free_drv_configs(event); + if (event->ctx) put_ctx(event->ctx); @@ -4272,6 +4275,8 @@ static int perf_event_set_output(struct perf_event *event, struct perf_event *output_event); static int perf_event_set_filter(struct perf_event *event, void __user *arg); static int perf_event_set_bpf_prog(struct perf_event *event, u32 prog_fd); +static int perf_event_drv_configs(struct perf_event *event, + void __user *arg); static long _perf_ioctl(struct perf_event *event, unsigned int cmd, unsigned long arg) { @@ -4328,6 +4333,9 @@ static long _perf_ioctl(struct perf_event *event, unsigned int cmd, unsigned lon case PERF_EVENT_IOC_SET_BPF: return perf_event_set_bpf_prog(event, arg); + case PERF_EVENT_IOC_SET_DRV_CONFIGS: + return perf_event_drv_configs(event, (void __user *)arg); + default: return -ENOTTY; } @@ -4360,6 +4368,7 @@ static long perf_compat_ioctl(struct file *file, unsigned int cmd, switch (_IOC_NR(cmd)) { case _IOC_NR(PERF_EVENT_IOC_SET_FILTER): case _IOC_NR(PERF_EVENT_IOC_ID): + case _IOC_NR(PERF_EVENT_IOC_SET_DRV_CONFIGS): /* Fix up pointer size (usually 4 -> 8 in 32-on-64-bit case */ if (_IOC_SIZE(cmd) == sizeof(compat_uptr_t)) { cmd &= ~IOCSIZE_MASK; @@ -7259,6 +7268,15 @@ void perf_bp_event(struct perf_event *bp, void *data) } #endif +static int perf_event_drv_configs(struct perf_event *event, + void __user *arg) +{ + if (!event->pmu->get_drv_configs) + return -EINVAL; + + return event->pmu->get_drv_configs(event, arg); +} + /* * hrtimer based swevent callback */ @@ -7995,6 +8013,7 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu, INIT_LIST_HEAD(&event->sibling_list); INIT_LIST_HEAD(&event->rb_entry); INIT_LIST_HEAD(&event->active_entry); + INIT_LIST_HEAD(&event->drv_configs); INIT_HLIST_NODE(&event->hlist_entry); diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c index 084be7d41bcf..8c60a4eb4080 100644 --- a/kernel/events/ring_buffer.c +++ b/kernel/events/ring_buffer.c @@ -562,7 +562,7 @@ int rb_alloc_aux(struct ring_buffer *rb, struct perf_event *event, goto out; } - rb->aux_priv = event->pmu->setup_aux(event->cpu, rb->aux_pages, nr_pages, + rb->aux_priv = event->pmu->setup_aux(event, rb->aux_pages, nr_pages, overwrite); if (!rb->aux_priv) goto out; |