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authorJoerg Roedel <jroedel@suse.de>2019-06-24 10:23:16 +0200
committerJoerg Roedel <jroedel@suse.de>2019-06-24 10:23:16 +0200
commitceedd5f74d8cfe34db4e654a7808e3c5de40d6f5 (patch)
treee19c18292231202e9cd8d484ee43f46b2c9c9ad1 /tools/perf/util/thread.c
parent1b961423158caaae49d3900b7c9c37477bbfa9b3 (diff)
parent4b972a01a7da614b4796475f933094751a295a2f (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.c15
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)