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Commit 483322dd authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf cgroup: Add evlist__add_default_cgroup() 

So that tools like 'perf trace' can allow the user to set a cgroup
to be used for all the evsels still without a crgroup setup by
parse_cgroups(), such as the one to use for the syscalls, vfs_getname
and other events involved in strace like syscall tracing.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-zf9jjsbj661r3lk6qb7g8j70@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 69239ec8

tools/perf/util/cgroup.c

+14 −0
Original line number Diff line number Diff line
@@ -182,6 +182,20 @@ struct cgroup *cgroup__get(struct cgroup *cgroup) 
       return cgroup;

}



static void evsel__set_default_cgroup(struct perf_evsel *evsel, struct cgroup *cgroup)

{

	if (evsel->cgrp == NULL)

		evsel->cgrp = cgroup__get(cgroup);

}



void evlist__set_default_cgroup(struct perf_evlist *evlist, struct cgroup *cgroup)

{

	struct perf_evsel *evsel;



	evlist__for_each_entry(evlist, evsel)

		evsel__set_default_cgroup(evsel, cgroup);

}



int parse_cgroups(const struct option *opt, const char *str,

		  int unset __maybe_unused)

{

tools/perf/util/cgroup.h

+2 −0
Original line number Diff line number Diff line
@@ -22,6 +22,8 @@ struct perf_evlist; 


struct cgroup *evlist__findnew_cgroup(struct perf_evlist *evlist, char *name);



void evlist__set_default_cgroup(struct perf_evlist *evlist, struct cgroup *cgroup);



int parse_cgroups(const struct option *opt, const char *str, int unset);



#endif /* __CGROUP_H__ */