diff options
| author | Alexey Budankov <alexey.budankov@linux.intel.com> | 2018-11-06 12:03:35 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-17 14:55:01 -0300 |
| commit | 0b77383134f3dbb461189a9c4f3b46b20152045d (patch) | |
| tree | 7feb64c63da57d61415e61308e6ff122586e550e /tools/perf/util/evlist.c | |
| parent | 2a07d814747b386feec7d7150fe519feb2a2a5f2 (diff) | |
perf mmap: Map data buffer for preserving collected data
The map->data buffer is used to preserve map->base profiling data for
writing to disk. AIO map->cblock is used to queue corresponding
map->data buffer for asynchronous writing.
Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/5fcda10c-6c63-68df-383a-c6d9e5d1f918@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evlist.c')
| -rw-r--r-- | tools/perf/util/evlist.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 36526d229315..6f010b9f0a81 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1028,7 +1028,7 @@ int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages, * Its value is decided by evsel's write_backward. * So &mp should not be passed through const pointer. */ - struct mmap_params mp; + struct mmap_params mp = { .nr_cblocks = 0 }; if (!evlist->mmap) evlist->mmap = perf_evlist__alloc_mmap(evlist, false); |