/* * 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 */ #ifndef __PERF_NAMESPACES_H #define __PERF_NAMESPACES_H #include <sys/types.h> #include <linux/stddef.h> #include <linux/perf_event.h> #include <linux/refcount.h> #include <linux/types.h> struct namespaces_event; struct namespaces { struct list_head list; u64 end_time; struct perf_ns_link_info link_info[]; }; struct namespaces *namespaces__new(struct namespaces_event *event); void namespaces__free(struct namespaces *namespaces); struct nsinfo { pid_t pid; pid_t tgid; pid_t nstgid; bool need_setns; char *mntns_path; refcount_t refcnt; }; struct nscookie { int oldns; int newns; }; 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__get(struct nsinfo *nsi); void nsinfo__put(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); static inline void __nsinfo__zput(struct nsinfo **nsip) { if (nsip) { nsinfo__put(*nsip); *nsip = NULL; } } #define nsinfo__zput(nsi) __nsinfo__zput(&nsi) #endif /* __PERF_NAMESPACES_H */