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author | Joerg Roedel <jroedel@suse.de> | 2019-06-24 10:23:16 +0200 |
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committer | Joerg Roedel <jroedel@suse.de> | 2019-06-24 10:23:16 +0200 |
commit | ceedd5f74d8cfe34db4e654a7808e3c5de40d6f5 (patch) | |
tree | e19c18292231202e9cd8d484ee43f46b2c9c9ad1 /tools/perf/util/thread.c | |
parent | 1b961423158caaae49d3900b7c9c37477bbfa9b3 (diff) | |
parent | 4b972a01a7da614b4796475f933094751a295a2f (diff) |
Merge tag 'v5.2-rc6' into generic-dma-ops
Linux 5.2-rc6
Diffstat (limited to 'tools/perf/util/thread.c')
-rw-r--r-- | tools/perf/util/thread.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index 403045a2bbea..b413ba5b9835 100644 --- a/tools/perf/util/thread.c +++ b/tools/perf/util/thread.c @@ -133,7 +133,7 @@ void thread__put(struct thread *thread) } } -struct namespaces *thread__namespaces(const struct thread *thread) +static struct namespaces *__thread__namespaces(const struct thread *thread) { if (list_empty(&thread->namespaces_list)) return NULL; @@ -141,10 +141,21 @@ struct namespaces *thread__namespaces(const struct thread *thread) return list_first_entry(&thread->namespaces_list, struct namespaces, list); } +struct namespaces *thread__namespaces(const struct thread *thread) +{ + struct namespaces *ns; + + down_read((struct rw_semaphore *)&thread->namespaces_lock); + ns = __thread__namespaces(thread); + up_read((struct rw_semaphore *)&thread->namespaces_lock); + + return ns; +} + static int __thread__set_namespaces(struct thread *thread, u64 timestamp, struct namespaces_event *event) { - struct namespaces *new, *curr = thread__namespaces(thread); + struct namespaces *new, *curr = __thread__namespaces(thread); new = namespaces__new(event); if (!new) |