diff options
| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-08-01 18:53:11 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-08-01 18:53:11 -0300 |
| commit | bde09467b56c5a3cfe2a29d58edc5f7172c15184 (patch) | |
| tree | 5a5bfcdd800a7fbe2a750b86f153e83e866f99c5 /tools/perf/util/evsel.c | |
| parent | perf target: Fix check on buffer size (diff) | |
| download | linux-dev-bde09467b56c5a3cfe2a29d58edc5f7172c15184.tar.xz linux-dev-bde09467b56c5a3cfe2a29d58edc5f7172c15184.zip | |
perf evsel: Precalculate the sample size
So that we don't have to store it in the perf_session instance, because
in the future perf_session instances may have multiple evlists, each
with different sample_type/sizes.
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ptod86fxkpgq3h62m9refkv4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evsel.c')
| -rw-r--r-- | tools/perf/util/evsel.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index e81771364867..8feec4011356 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -20,7 +20,7 @@ #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y)) #define GROUP_FD(group_fd, cpu) (*(int *)xyarray__entry(group_fd, cpu, 0)) -int __perf_evsel__sample_size(u64 sample_type) +static int __perf_evsel__sample_size(u64 sample_type) { u64 mask = sample_type & PERF_SAMPLE_MASK; int size = 0; @@ -53,6 +53,7 @@ void perf_evsel__init(struct perf_evsel *evsel, evsel->attr = *attr; INIT_LIST_HEAD(&evsel->node); hists__init(&evsel->hists); + evsel->sample_size = __perf_evsel__sample_size(attr->sample_type); } struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx) |