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| author | Namhyung Kim <namhyung@kernel.org> | 2020-03-25 13:45:31 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-04-03 14:37:55 +0200 |
| commit | d1277aa36bff4bfc1a187a469fc6a6a1d17cf59c (patch) | |
| tree | 682d45f57bf534a8eda1195c6b46cb8f7be0953c /tools/perf/util/cgroup.h | |
| parent | perf tools: Basic support for CGROUP event (diff) | |
| download | linux-d1277aa36bff4bfc1a187a469fc6a6a1d17cf59c.tar.xz linux-d1277aa36bff4bfc1a187a469fc6a6a1d17cf59c.zip | |
perf cgroup: Maintain cgroup hierarchy
Each cgroup is kept in the perf_env's cgroup_tree sorted by the cgroup
id. Hist entries have cgroup id can compare it directly and later it
can be used to find a group name using this tree.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20200325124536.2800725-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/cgroup.h')
| -rw-r--r-- | tools/perf/util/cgroup.h | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/tools/perf/util/cgroup.h b/tools/perf/util/cgroup.h index 2ec11f01090d..e98d5975fe55 100644 --- a/tools/perf/util/cgroup.h +++ b/tools/perf/util/cgroup.h @@ -3,16 +3,19 @@ #define __CGROUP_H__ #include <linux/refcount.h> +#include <linux/rbtree.h> +#include "util/env.h" struct option; struct cgroup { - char *name; - int fd; - refcount_t refcnt; + struct rb_node node; + u64 id; + char *name; + int fd; + refcount_t refcnt; }; - extern int nr_cgroups; /* number of explicit cgroups defined */ struct cgroup *cgroup__get(struct cgroup *cgroup); @@ -26,4 +29,10 @@ void evlist__set_default_cgroup(struct evlist *evlist, struct cgroup *cgroup); int parse_cgroups(const struct option *opt, const char *str, int unset); +struct cgroup *cgroup__findnew(struct perf_env *env, uint64_t id, + const char *path); +struct cgroup *cgroup__find(struct perf_env *env, uint64_t id); + +void perf_env__purge_cgroups(struct perf_env *env); + #endif /* __CGROUP_H__ */ |