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authorKan Liang <kan.liang@linux.intel.com>2018-03-06 18:36:07 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-03-08 16:05:53 +0300
commitb9bae2c841b73eac6bfed510bc24a3051754ff51 (patch)
tree8533c197b859d64024805e0f4f6b9c2e778c20db /tools/perf/builtin-kvm.c
parent0019dc87b928380e2c85fcd8694e512079d7b580 (diff)
downloadlinux-b9bae2c841b73eac6bfed510bc24a3051754ff51.tar.xz
perf mmap: Simplify perf_mmap__read_init()
It isn't necessary to pass the 'start', 'end' and 'overwrite' arguments to perf_mmap__read_init(). The data is stored in the struct perf_mmap. Discard the parameters. Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1520350567-80082-8-git-send-email-kan.liang@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-kvm.c')
-rw-r--r--tools/perf/builtin-kvm.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index e9f69b8f8e25..72e2ca096bf5 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -746,14 +746,13 @@ static s64 perf_kvm__mmap_read_idx(struct perf_kvm_stat *kvm, int idx,
struct perf_evlist *evlist = kvm->evlist;
union perf_event *event;
struct perf_mmap *md;
- u64 end, start;
u64 timestamp;
s64 n = 0;
int err;
*mmap_time = ULLONG_MAX;
md = &evlist->mmap[idx];
- err = perf_mmap__read_init(md, false, &start, &end);
+ err = perf_mmap__read_init(md);
if (err < 0)
return (err == -EAGAIN) ? 0 : -1;