perf kvm: Move code to generate filename for perf-kvm to function.
The code in builtin-kvm.c to generate filename for perf-kvm is useful to
other command such as builtin-diff.
This patch move the related code form builtin-kvm.c to util/util.c and
wrap them in a function named get_filename_for_perf_kvm.
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/5e09a5c47e8a495e888cbdc65a6fafb2c950f529.1386368672.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index c2e5d56..c6fa3cb 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1713,12 +1713,7 @@
perf_guest = 1;
if (!file_name) {
- if (perf_host && !perf_guest)
- file_name = strdup("perf.data.host");
- else if (!perf_host && perf_guest)
- file_name = strdup("perf.data.guest");
- else
- file_name = strdup("perf.data.kvm");
+ file_name = get_filename_for_perf_kvm();
if (!file_name) {
pr_err("Failed to allocate memory for filename\n");
