2017-06-17 03:47:04

by Taeung Song

[permalink] [raw]
Subject: [PATCH v4 5/5] perf config: Autogenerate a config file if it does not exist on setting feature.

Currently the users can not create a config file
in the below case.

Before:

$ rm -f ~/.perfconfig
$ perf config --user report.children=false

$ cat ~/.perfconfig
cat: /root/.perfconfig: No such file or directory

But I think it should work no matter whether a config file exists or not.

After:

$ rm -f ~/.perfconfig
$ perf config --user report.children=false

$ cat ~/.perfconfig
# this file is auto-generated.
[report]
children = false

NOTE:
If not free config_set after perf_config_set__init() failed,
we can do that. The config set will be freed at the tail end.
(i.e. by perf_config_set__delete() at the end of cmd_config())

Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Signed-off-by: Taeung Song <[email protected]>
---
tools/perf/util/config.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 8d724f0..1cc5d80 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -691,10 +691,7 @@ struct perf_config_set *perf_config_set__new(void)

if (set) {
INIT_LIST_HEAD(&set->sections);
- if (perf_config_set__init(set) < 0) {
- perf_config_set__delete(set);
- set = NULL;
- }
+ perf_config_set__init(set);
}

return set;
--
2.7.4