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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-06-17 21:40:26 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-06-17 21:40:26 +0200 |
| commit | 2b56bcfb6f4bb0aa0813b6ee1dde8f5b23fce5d4 (patch) | |
| tree | 34a4113da24f1ec4593936d06653f25b9ba5646a /tools | |
| parent | perf trace: Fix race condition at the end of started workloads (diff) | |
| download | linux-2b56bcfb6f4bb0aa0813b6ee1dde8f5b23fce5d4.tar.xz linux-2b56bcfb6f4bb0aa0813b6ee1dde8f5b23fce5d4.zip | |
perf evlist: Add toggle_enable() method
For an upcoming feature in 'perf top' we will have a hotkey to
enable/disable events, so remember if the events in the list are
enabled or disabled and allows toggling this state using a new
method.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-64c4jvdl5feg2zhimxvokqka@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/evlist.c | 9 | ||||
| -rw-r--r-- | tools/perf/util/evlist.h | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 6b58a47a79ec..8366511b45f8 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -297,6 +297,8 @@ void perf_evlist__disable(struct perf_evlist *evlist) PERF_EVENT_IOC_DISABLE, 0); } } + + evlist->enabled = false; } void perf_evlist__enable(struct perf_evlist *evlist) @@ -316,6 +318,13 @@ void perf_evlist__enable(struct perf_evlist *evlist) PERF_EVENT_IOC_ENABLE, 0); } } + + evlist->enabled = true; +} + +void perf_evlist__toggle_enable(struct perf_evlist *evlist) +{ + (evlist->enabled ? perf_evlist__disable : perf_evlist__enable)(evlist); } int perf_evlist__disable_event(struct perf_evlist *evlist, diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 955bf31b7dd3..a8489b9d2812 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -41,6 +41,7 @@ struct perf_evlist { int nr_groups; int nr_mmaps; bool overwrite; + bool enabled; size_t mmap_len; int id_pos; int is_pos; @@ -139,6 +140,7 @@ void perf_evlist__munmap(struct perf_evlist *evlist); void perf_evlist__disable(struct perf_evlist *evlist); void perf_evlist__enable(struct perf_evlist *evlist); +void perf_evlist__toggle_enable(struct perf_evlist *evlist); int perf_evlist__disable_event(struct perf_evlist *evlist, struct perf_evsel *evsel); |