diff options
| -rw-r--r-- | kernel/events/core.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 0c7015f3ec03..525c64ee7925 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5339,8 +5339,7 @@ static bool exclusive_event_installable(struct perf_event *event, return true; } -static void perf_addr_filters_splice(struct perf_event *event, - struct list_head *head); +static void perf_free_addr_filters(struct perf_event *event); static void perf_pending_task_sync(struct perf_event *event) { @@ -5439,7 +5438,7 @@ static void _free_event(struct perf_event *event) } perf_event_free_bpf_prog(event); - perf_addr_filters_splice(event, NULL); + perf_free_addr_filters(event); __free_event(event); } @@ -11004,6 +11003,17 @@ static void perf_addr_filters_splice(struct perf_event *event, free_filters_list(&list); } +static void perf_free_addr_filters(struct perf_event *event) +{ + /* + * Used during free paths, there is no concurrency. + */ + if (list_empty(&event->addr_filters.list)) + return; + + perf_addr_filters_splice(event, NULL); +} + /* * Scan through mm's vmas and see if one of them matches the * @filter; if so, adjust filter's address range. |