[PATCH RFC 04/10] petf tools: introduce a new function to set namespaces id

[kan . liang]

From: Kan Liang <kan.liang@xxxxxxxxx>

Finish the namespaces id setting job in thread.c.

Signed-off-by: Kan Liang <kan.liang@xxxxxxxxx>
---
 tools/perf/util/hist.c   |  6 +-----
 tools/perf/util/thread.c | 10 ++++++++++
 tools/perf/util/thread.h |  2 ++
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 0f00dd9..1f467cc 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -584,14 +584,9 @@ __hists__add_entry(struct hists *hists,
 		   bool sample_self,
 		   struct hist_entry_ops *ops)
 {
-	struct namespaces *ns = thread__namespaces(al->thread);
 	struct hist_entry entry = {
 		.thread	= al->thread,
 		.comm_str = thread__comm_str(al->thread),
-		.cgroup_id = {
-			.dev = ns ? ns->link_info[CGROUP_NS_INDEX].dev : 0,
-			.ino = ns ? ns->link_info[CGROUP_NS_INDEX].ino : 0,
-		},
 		.ms = {
 			.map	= al->map,
 			.sym	= al->sym,
@@ -617,6 +612,7 @@ __hists__add_entry(struct hists *hists,
 		.ops = ops,
 	};
 
+	thread__namespaces_id(al->thread, &entry.cgroup_id.dev, &entry.cgroup_id.ino);
 	return hists__findnew_entry(hists, &entry, al, sample_self);
 }
 
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index aee9a42..b7957da 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -149,6 +149,16 @@ int thread__set_namespaces(struct thread *thread, u64 timestamp,
 	return 0;
 }
 
+void thread__namespaces_id(const struct thread *thread,
+			   u64 *dev, u64 *ino)
+{
+	struct namespaces *ns;
+
+	ns = thread__namespaces(thread);
+	*dev = ns ? ns->link_info[CGROUP_NS_INDEX].dev : 0;
+	*ino = ns ? ns->link_info[CGROUP_NS_INDEX].ino : 0;
+}
+
 struct comm *thread__comm(const struct thread *thread)
 {
 	if (list_empty(&thread->comm_list))
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index cb1a5dd..fd7bd41 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -68,6 +68,8 @@ static inline void thread__exited(struct thread *thread)
 struct namespaces *thread__namespaces(const struct thread *thread);
 int thread__set_namespaces(struct thread *thread, u64 timestamp,
 			   struct namespaces_event *event);
+void thread__namespaces_id(const struct thread *thread,
+			   u64 *dev, u64 *ino);
 
 int __thread__set_comm(struct thread *thread, const char *comm, u64 timestamp,
 		       bool exec);
-- 
2.5.5