diff options
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/perf_event.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c index c9f8a757649d..bbebe2832639 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -1454,25 +1454,16 @@ static void perf_ctx_adjust_freq(struct perf_event_context *ctx) */ static void rotate_ctx(struct perf_event_context *ctx) { - struct perf_event *event; - if (!ctx->nr_events) return; raw_spin_lock(&ctx->lock); - /* - * Rotate the first entry last (works just fine for group events too): - */ + + /* Rotate the first entry last of non-pinned groups */ perf_disable(); - list_for_each_entry(event, &ctx->pinned_groups, group_entry) { - list_move_tail(&event->group_entry, &ctx->pinned_groups); - break; - } - list_for_each_entry(event, &ctx->flexible_groups, group_entry) { - list_move_tail(&event->group_entry, &ctx->flexible_groups); - break; - } + list_rotate_left(&ctx->flexible_groups); + perf_enable(); raw_spin_unlock(&ctx->lock); |