projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| f3b3614a HB |
1 | /* |
| 2 | * This program is free software; you can redistribute it and/or modify | |
| 3 | * it under the terms of the GNU General Public License, version 2, as | |
| 4 | * published by the Free Software Foundation. | |
| 5 | * | |
| 6 | * Copyright (C) 2017 Hari Bathini, IBM Corporation | |
| 7 | */ | |
| 8 | ||
| 9 | #ifndef __PERF_NAMESPACES_H | |
| 10 | #define __PERF_NAMESPACES_H | |
| 11 | ||
| b1f03ca4 | 12 | #include <sys/types.h> |
| 44fe619b | 13 | #include <linux/stddef.h> |
| b1f03ca4 | 14 | #include <linux/perf_event.h> |
| 843ff37b | 15 | #include <linux/refcount.h> |
| b1f03ca4 | 16 | #include <linux/types.h> |
| f3b3614a HB |
17 | |
| 18 | struct namespaces_event; | |
| 19 | ||
| 20 | struct namespaces { | |
| 21 | struct list_head list; | |
| 22 | u64 end_time; | |
| 23 | struct perf_ns_link_info link_info[]; | |
| 24 | }; | |
| 25 | ||
| 26 | struct namespaces *namespaces__new(struct namespaces_event *event); | |
| 27 | void namespaces__free(struct namespaces *namespaces); | |
| 28 | ||
| 843ff37b KJ |
29 | struct nsinfo { |
| 30 | pid_t pid; | |
| bf2e710b KJ |
31 | pid_t tgid; |
| 32 | pid_t nstgid; | |
| 843ff37b KJ |
33 | bool need_setns; |
| 34 | char *mntns_path; | |
| 35 | refcount_t refcnt; | |
| 36 | }; | |
| 37 | ||
| 38 | struct nscookie { | |
| 39 | int oldns; | |
| 40 | int newns; | |
| b01c1f69 | 41 | char *oldcwd; |
| 843ff37b KJ |
42 | }; |
| 43 | ||
| bf2e710b | 44 | int nsinfo__init(struct nsinfo *nsi); |
| 843ff37b | 45 | struct nsinfo *nsinfo__new(pid_t pid); |
| bf2e710b | 46 | struct nsinfo *nsinfo__copy(struct nsinfo *nsi); |
| 843ff37b KJ |
47 | void nsinfo__delete(struct nsinfo *nsi); |
| 48 | ||
| 49 | struct nsinfo *nsinfo__get(struct nsinfo *nsi); | |
| 50 | void nsinfo__put(struct nsinfo *nsi); | |
| 51 | ||
| 52 | void nsinfo__mountns_enter(struct nsinfo *nsi, struct nscookie *nc); | |
| 53 | void nsinfo__mountns_exit(struct nscookie *nc); | |
| 54 | ||
| 544abd44 KJ |
55 | char *nsinfo__realpath(const char *path, struct nsinfo *nsi); |
| 56 | ||
| 843ff37b KJ |
57 | static inline void __nsinfo__zput(struct nsinfo **nsip) |
| 58 | { | |
| 59 | if (nsip) { | |
| 60 | nsinfo__put(*nsip); | |
| 61 | *nsip = NULL; | |
| 62 | } | |
| 63 | } | |
| 64 | ||
| 65 | #define nsinfo__zput(nsi) __nsinfo__zput(&nsi) | |
| 66 | ||
| f3b3614a | 67 | #endif /* __PERF_NAMESPACES_H */ |