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authorWang Nan <wangnan0@huawei.com>2016-05-23 10:13:41 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-05-24 00:22:48 +0300
commit3a62a7b8200a177ad96161e4f2678514e6ee301e (patch)
treeb990cb212929775c1dc926ebc992dee6bbe7c03f /tools/perf/util/evlist.c
parent09fa4f401296f555afb6f2f4282717644d94722e (diff)
downloadlinux-3a62a7b8200a177ad96161e4f2678514e6ee301e.tar.xz
perf record: Read from backward ring buffer
Introduce rb_find_range() to find start and end position from a backward ring buffer. Signed-off-by: Wang Nan <wangnan0@huawei.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Cc: pi3orama@163.com Link: http://lkml.kernel.org/r/1463987628-163563-5-git-send-email-wangnan0@huawei.com Signed-off-by: He Kuang <hekuang@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.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 904523a2be90..e82ba90cc969 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -44,6 +44,7 @@ void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
perf_evlist__set_maps(evlist, cpus, threads);
fdarray__init(&evlist->pollfd, 64);
evlist->workload.pid = -1;
+ evlist->backward = false;
}
struct perf_evlist *perf_evlist__new(void)