cgroup.h (1351B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __CGROUP_H__ 3#define __CGROUP_H__ 4 5#include <linux/compiler.h> 6#include <linux/refcount.h> 7#include <linux/rbtree.h> 8#include "util/env.h" 9 10struct option; 11 12struct cgroup { 13 struct rb_node node; 14 u64 id; 15 char *name; 16 int fd; 17 refcount_t refcnt; 18}; 19 20extern int nr_cgroups; /* number of explicit cgroups defined */ 21extern bool cgrp_event_expanded; 22 23struct cgroup *cgroup__get(struct cgroup *cgroup); 24void cgroup__put(struct cgroup *cgroup); 25 26struct evlist; 27struct rblist; 28 29struct cgroup *evlist__findnew_cgroup(struct evlist *evlist, const char *name); 30int evlist__expand_cgroup(struct evlist *evlist, const char *cgroups, 31 struct rblist *metric_events, bool open_cgroup); 32 33void evlist__set_default_cgroup(struct evlist *evlist, struct cgroup *cgroup); 34 35int parse_cgroups(const struct option *opt, const char *str, int unset); 36 37struct cgroup *cgroup__findnew(struct perf_env *env, uint64_t id, 38 const char *path); 39struct cgroup *cgroup__find(struct perf_env *env, uint64_t id); 40 41void perf_env__purge_cgroups(struct perf_env *env); 42 43#ifdef HAVE_FILE_HANDLE 44int read_cgroup_id(struct cgroup *cgrp); 45#else 46static inline int read_cgroup_id(struct cgroup *cgrp __maybe_unused) 47{ 48 return -1; 49} 50#endif /* HAVE_FILE_HANDLE */ 51 52int cgroup_is_v2(const char *subsys); 53 54#endif /* __CGROUP_H__ */