perf kmem: Don't use globals where not needed to
Some variables were global but used in just one function, so move it to
where it belongs.
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-wu8lz0g2qg26aqgi51xgzkpp@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index bc912c6..14bf82f 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -21,8 +21,6 @@
struct alloc_stat;
typedef int (*sort_fn_t)(struct alloc_stat *, struct alloc_stat *);
-static const char *input_name;
-
static int alloc_flag;
static int caller_flag;
@@ -31,8 +29,6 @@
static bool raw_ip;
-static char default_sort_order[] = "frag,hit,bytes";
-
static int *cpunode_map;
static int max_cpu_num;
@@ -481,7 +477,7 @@
__sort_result(&root_caller_stat, &root_caller_sorted, &caller_sort);
}
-static int __cmd_kmem(void)
+static int __cmd_kmem(const char *input_name)
{
int err = -EINVAL;
struct perf_session *session;
@@ -520,11 +516,6 @@
return err;
}
-static const char * const kmem_usage[] = {
- "perf kmem [<options>] {record|stat}",
- NULL
-};
-
static int ptr_cmp(struct alloc_stat *l, struct alloc_stat *r)
{
if (l->ptr < r->ptr)
@@ -720,41 +711,17 @@
return 0;
}
-static const struct option kmem_options[] = {
- OPT_STRING('i', "input", &input_name, "file",
- "input file name"),
- OPT_CALLBACK_NOOPT(0, "caller", NULL, NULL,
- "show per-callsite statistics",
- parse_caller_opt),
- OPT_CALLBACK_NOOPT(0, "alloc", NULL, NULL,
- "show per-allocation statistics",
- parse_alloc_opt),
- OPT_CALLBACK('s', "sort", NULL, "key[,key2...]",
- "sort by keys: ptr, call_site, bytes, hit, pingpong, frag",
- parse_sort_opt),
- OPT_CALLBACK('l', "line", NULL, "num",
- "show n lines",
- parse_line_opt),
- OPT_BOOLEAN(0, "raw-ip", &raw_ip, "show raw ip instead of symbol"),
- OPT_END()
-};
-
-static const char *record_args[] = {
- "record",
- "-a",
- "-R",
- "-f",
- "-c", "1",
+static int __cmd_record(int argc, const char **argv)
+{
+ const char * const record_args[] = {
+ "record", "-a", "-R", "-f", "-c", "1",
"-e", "kmem:kmalloc",
"-e", "kmem:kmalloc_node",
"-e", "kmem:kfree",
"-e", "kmem:kmem_cache_alloc",
"-e", "kmem:kmem_cache_alloc_node",
"-e", "kmem:kmem_cache_free",
-};
-
-static int __cmd_record(int argc, const char **argv)
-{
+ };
unsigned int rec_argc, i, j;
const char **rec_argv;
@@ -775,6 +742,25 @@
int cmd_kmem(int argc, const char **argv, const char *prefix __maybe_unused)
{
+ const char * const default_sort_order = "frag,hit,bytes";
+ const char *input_name = NULL;
+ const struct option kmem_options[] = {
+ OPT_STRING('i', "input", &input_name, "file", "input file name"),
+ OPT_CALLBACK_NOOPT(0, "caller", NULL, NULL,
+ "show per-callsite statistics", parse_caller_opt),
+ OPT_CALLBACK_NOOPT(0, "alloc", NULL, NULL,
+ "show per-allocation statistics", parse_alloc_opt),
+ OPT_CALLBACK('s', "sort", NULL, "key[,key2...]",
+ "sort by keys: ptr, call_site, bytes, hit, pingpong, frag",
+ parse_sort_opt),
+ OPT_CALLBACK('l', "line", NULL, "num", "show n lines", parse_line_opt),
+ OPT_BOOLEAN(0, "raw-ip", &raw_ip, "show raw ip instead of symbol"),
+ OPT_END()
+ };
+ const char * const kmem_usage[] = {
+ "perf kmem [<options>] {record|stat}",
+ NULL
+ };
argc = parse_options(argc, argv, kmem_options, kmem_usage, 0);
if (!argc)
@@ -793,7 +779,7 @@
if (list_empty(&alloc_sort))
setup_sorting(&alloc_sort, default_sort_order);
- return __cmd_kmem();
+ return __cmd_kmem(input_name);
} else
usage_with_options(kmem_usage, kmem_options);