perf kmem has an input file option but current an output file option
fails:
```
$ sudo perf kmem record -o /tmp/p.data sleep 1
Error: unknown switch `o'
Usage: perf kmem [<options>] {record|stat}
-f, --force don't complain, do it
-i, --input <file> input file name
-l, --line <num> show n lines
-s, --sort <key[,key2...]>
sort by keys: ptr, callsite, bytes, hit, pingpong,
frag, page, order, mig>
-v, --verbose be more verbose (show symbol address, etc)
--alloc show per-allocation statistics
--caller show per-callsite statistics
--live Show live page stat
--page Analyze page allocator
--raw-ip show raw ip instead of symbol
--slab Analyze slab allocator
--time <str> Time span of interest (start,stop)
```
perf sched is similar in implementation and avoids the problem by
passing additional arguments to perf record. This change makes perf kmem
parse command line options consistently with perf sched, although
neither actually list that -o is a supported option.
Signed-off-by: Ian Rogers <[email protected]>
---
tools/perf/builtin-kmem.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 38a5ab683ebc..a50dae2c4ae9 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -1933,7 +1933,8 @@ int cmd_kmem(int argc, const char **argv)
return ret;
argc = parse_options_subcommand(argc, argv, kmem_options,
- kmem_subcommands, kmem_usage, 0);
+ kmem_subcommands, kmem_usage,
+ PARSE_OPT_STOP_AT_NON_OPTION);
if (!argc)
usage_with_options(kmem_usage, kmem_options);
--
2.27.0.383.g050319c2ae-goog
