perf cgroup: Add evlist__findnew_cgroup()

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Similar to machine__findnew_thread(), etc, i.e. try to find, get a
refcount if found and return it, otherwise return a new cgroup object.

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-im1omevlihhyneiic4nl3g24@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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Arnaldo Carvalho de Melo 2018-03-06 15:27:08 -03:00

parent 4b5ea3bd67

commit 69239ec81d

2 changed files with 14 additions and 7 deletions

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17

tools/perf/util/cgroup.c

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4

tools/perf/util/cgroup.h

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