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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-11-25 13:26:56 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-11-25 13:26:56 -0800 |
| commit | 976e3645923bdd2fe7893aae33fd7a21098bfb28 (patch) | |
| tree | d1cb24e4c9743beef15a4796070aca7e2c08228a /kernel/trace/trace_event_perf.c | |
| parent | 8791663435e7fea896d8ca0f56fd64976d2089ff (diff) | |
| parent | 71c296f6d5b33faf9867d04c6c5d75c7e56b886b (diff) | |
| download | talos-op-linux-976e3645923bdd2fe7893aae33fd7a21098bfb28.tar.gz talos-op-linux-976e3645923bdd2fe7893aae33fd7a21098bfb28.zip | |
Merge branch 'next' into for-linus
Prepare input updates for 5.5 merge window.
Diffstat (limited to 'kernel/trace/trace_event_perf.c')
| -rw-r--r-- | kernel/trace/trace_event_perf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c index 0892e38ed6fb..a9dfa04ffa44 100644 --- a/kernel/trace/trace_event_perf.c +++ b/kernel/trace/trace_event_perf.c @@ -272,9 +272,11 @@ int perf_kprobe_init(struct perf_event *p_event, bool is_retprobe) goto out; } + mutex_lock(&event_mutex); ret = perf_trace_event_init(tp_event, p_event); if (ret) destroy_local_trace_kprobe(tp_event); + mutex_unlock(&event_mutex); out: kfree(func); return ret; @@ -282,8 +284,10 @@ out: void perf_kprobe_destroy(struct perf_event *p_event) { + mutex_lock(&event_mutex); perf_trace_event_close(p_event); perf_trace_event_unreg(p_event); + mutex_unlock(&event_mutex); destroy_local_trace_kprobe(p_event->tp_event); } |
