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| author | Wang Nan <wangnan0@huawei.com> | 2017-12-03 02:00:41 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-12-05 15:43:54 -0300 |
| commit | 8eb7a1fe31612fd3e8ae8042dd2ebaf7575504cb (patch) | |
| tree | 894be1553d77d66d41e4838c89712240059da1b2 /tools/perf/util/evlist.c | |
| parent | ca6a9a05391960be5e8161a59a9854b32325d901 (diff) | |
| download | lwn-8eb7a1fe31612fd3e8ae8042dd2ebaf7575504cb.tar.gz lwn-8eb7a1fe31612fd3e8ae8042dd2ebaf7575504cb.zip | |
perf mmap: Remove overwrite and check_messup from mmap read
All perf_mmap__read_forward() read from read-write ring buffer, so no
need check_messup. Reading from backward ring buffer doesn't require
check_messup because it never mess up. Cleanup arguments lists.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Link: http://lkml.kernel.org/r/20171203020044.81680-6-wangnan0@huawei.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 a59134fb141f..68c1f9546650 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -711,7 +711,7 @@ union perf_event *perf_evlist__mmap_read_forward(struct perf_evlist *evlist, int * No need for read-write ring buffer: kernel stop outputting when * it hit md->prev (perf_mmap__consume()). */ - return perf_mmap__read_forward(md, false); + return perf_mmap__read_forward(md); } union perf_event *perf_evlist__mmap_read_backward(struct perf_evlist *evlist, int idx) |