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perf evlist: Map backward events to backward_mmap

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In perf_evlist__mmap_per_evsel(), select backward_mmap for backward
events.  Utilize new perf_mmap APIs. Dynamically alloc backward_mmap.

Remove useless functions.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: He Kuang <hekuang@huawei.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nilay Vaish <nilayvaish@gmail.com>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1468485287-33422-9-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Wang Nan
2016-07-14 08:34:40 +00:00
committed by Arnaldo Carvalho de Melo
parent b2cb615d8a
commit 078c33862e
2 changed files with 29 additions and 29 deletions
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4
tools/perf/tests/backward-ring-buffer.c
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@@ -31,8 +31,8 @@ static int count_samples(struct perf_evlist *evlist, int *sample_count,
for (i = 0; i < evlist->nr_mmaps; i++) {
union perf_event *event;
perf_evlist__mmap_read_catchup(evlist, i);
while ((event = perf_evlist__mmap_read_backward(evlist, i)) != NULL) {
perf_mmap__read_catchup(&evlist->backward_mmap[i]);
while ((event = perf_mmap__read_backward(&evlist->backward_mmap[i])) != NULL) {
const u32 type = event->header.type;
switch (type) {