1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright (C) 2017 Hari Bathini, IBM Corporation
7 #ifndef __PERF_NAMESPACES_H
8 #define __PERF_NAMESPACES_H
10 #include <sys/types.h>
12 #include <linux/stddef.h>
13 #include <linux/perf_event.h>
14 #include <linux/refcount.h>
15 #include <linux/types.h>
17 #ifndef HAVE_SETNS_SUPPORT
18 int setns(int fd, int nstype);
21 struct perf_record_namespaces;
24 struct list_head list;
26 struct perf_ns_link_info link_info[];
29 struct namespaces *namespaces__new(struct perf_record_namespaces *event);
30 void namespaces__free(struct namespaces *namespaces);
48 int nsinfo__init(struct nsinfo *nsi);
49 struct nsinfo *nsinfo__new(pid_t pid);
50 struct nsinfo *nsinfo__copy(const struct nsinfo *nsi);
52 struct nsinfo *nsinfo__get(struct nsinfo *nsi);
53 void nsinfo__put(struct nsinfo *nsi);
55 bool nsinfo__need_setns(const struct nsinfo *nsi);
56 void nsinfo__clear_need_setns(struct nsinfo *nsi);
57 pid_t nsinfo__tgid(const struct nsinfo *nsi);
58 pid_t nsinfo__nstgid(const struct nsinfo *nsi);
59 pid_t nsinfo__pid(const struct nsinfo *nsi);
60 pid_t nsinfo__in_pidns(const struct nsinfo *nsi);
62 void nsinfo__mountns_enter(struct nsinfo *nsi, struct nscookie *nc);
63 void nsinfo__mountns_exit(struct nscookie *nc);
65 char *nsinfo__realpath(const char *path, struct nsinfo *nsi);
66 int nsinfo__stat(const char *filename, struct stat *st, struct nsinfo *nsi);
68 bool nsinfo__is_in_root_namespace(void);
70 static inline void __nsinfo__zput(struct nsinfo **nsip)
78 #define nsinfo__zput(nsi) __nsinfo__zput(&nsi)
80 const char *perf_ns__name(unsigned int id);
82 #endif /* __PERF_NAMESPACES_H */