]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
perf record: Support synthesizing cgroup events
authorNamhyung Kim <namhyung@kernel.org>
Wed, 25 Mar 2020 12:45:33 +0000 (21:45 +0900)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Fri, 3 Apr 2020 12:37:55 +0000 (09:37 -0300)
commitab64069f1a6604a43daec5fc4a4294b0b77a8b93
tree4f7e8e5a020c1ad5e86cd778f1ec9d7c1bd4d4c0
parentb629f3e9d01b4e4ad4e84c8f76fad514967a83da
perf record: Support synthesizing cgroup events

Synthesize cgroup events by iterating cgroup filesystem directories.
The cgroup event only saves the portion of cgroup path after the mount
point and the cgroup id (which actually is a file handle).

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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/20200325124536.2800725-7-namhyung@kernel.org
Link: http://lore.kernel.org/lkml/20200402015249.3800462-1-namhyung@kernel.org
[ Extracted the HAVE_FILE_HANDLE from the followup patch, added missing __maybe_unused ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/builtin-record.c
tools/perf/util/synthetic-events.c
tools/perf/util/synthetic-events.h
tools/perf/util/tool.h