1 files changed, 25 insertions, 8 deletions

diff --git a/tools/perf/util/namespaces.h b/tools/perf/util/namespaces.h
index d5f46c09ea31..e95c79b80e27 100644
--- a/tools/perf/util/namespaces.h
+++ b/tools/perf/util/namespaces.h
@@ -1,7 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
  *
  * Copyright (C) 2017 Hari Bathini, IBM Corporation
  */
@@ -10,12 +8,18 @@
 #define __PERF_NAMESPACES_H
 
 #include <sys/types.h>
+#include <sys/stat.h>
 #include <linux/stddef.h>
 #include <linux/perf_event.h>
 #include <linux/refcount.h>
 #include <linux/types.h>
+#include <internal/rc_check.h>
 
-struct namespaces_event;
+#ifndef HAVE_SETNS_SUPPORT
+int setns(int fd, int nstype);
+#endif
+
+struct perf_record_namespaces;
 
 struct namespaces {
 	struct list_head list;
@@ -23,14 +27,15 @@ struct namespaces {
 	struct perf_ns_link_info link_info[];
 };
 
-struct namespaces *namespaces__new(struct namespaces_event *event);
+struct namespaces *namespaces__new(struct perf_record_namespaces *event);
 void namespaces__free(struct namespaces *namespaces);
 
-struct nsinfo {
+DECLARE_RC_STRUCT(nsinfo) {
 	pid_t			pid;
 	pid_t			tgid;
 	pid_t			nstgid;
 	bool			need_setns;
+	bool			in_pidns;
 	char			*mntns_path;
 	refcount_t		refcnt;
 };
@@ -43,16 +48,26 @@ struct nscookie {
 
 int nsinfo__init(struct nsinfo *nsi);
 struct nsinfo *nsinfo__new(pid_t pid);
-struct nsinfo *nsinfo__copy(struct nsinfo *nsi);
-void nsinfo__delete(struct nsinfo *nsi);
+struct nsinfo *nsinfo__copy(const struct nsinfo *nsi);
 
 struct nsinfo *nsinfo__get(struct nsinfo *nsi);
 void nsinfo__put(struct nsinfo *nsi);
 
+bool nsinfo__need_setns(const struct nsinfo *nsi);
+void nsinfo__clear_need_setns(struct nsinfo *nsi);
+pid_t nsinfo__tgid(const struct nsinfo  *nsi);
+pid_t nsinfo__nstgid(const struct nsinfo  *nsi);
+pid_t nsinfo__pid(const struct nsinfo  *nsi);
+bool nsinfo__in_pidns(const struct nsinfo  *nsi);
+void nsinfo__set_in_pidns(struct nsinfo *nsi);
+
 void nsinfo__mountns_enter(struct nsinfo *nsi, struct nscookie *nc);
 void nsinfo__mountns_exit(struct nscookie *nc);
 
 char *nsinfo__realpath(const char *path, struct nsinfo *nsi);
+int nsinfo__stat(const char *filename, struct stat *st, struct nsinfo *nsi);
+
+bool nsinfo__is_in_root_namespace(void);
 
 static inline void __nsinfo__zput(struct nsinfo **nsip)
 {
@@ -64,4 +79,6 @@ static inline void __nsinfo__zput(struct nsinfo **nsip)
 
 #define nsinfo__zput(nsi) __nsinfo__zput(&nsi)
 
+const char *perf_ns__name(unsigned int id);
+
 #endif  /* __PERF_NAMESPACES_H */