[PATCH 01/25] perf evsel: Adopt find_process()

From: Arnaldo Carvalho de Melo
Date: Wed Jun 21 2017 - 14:03:10 EST


From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

And make it static, nobody else uses it, if we ever need it in more
places we can carve a new source file for process related methods,
for now lets reduce util.{c,h} a tad more.

Link: http://lkml.kernel.org/n/tip-zgb28rllvypjibw52aaz9p15@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/evsel.c | 39 +++++++++++++++++++++++++++++++++++++++
tools/perf/util/util.c | 37 -------------------------------------
tools/perf/util/util.h | 2 --
3 files changed, 39 insertions(+), 39 deletions(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 7f78f27f5382..6f4882f8d61f 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -11,6 +11,7 @@
#include <errno.h>
#include <inttypes.h>
#include <linux/bitops.h>
+#include <api/fs/fs.h>
#include <api/fs/tracing_path.h>
#include <traceevent/event-parse.h>
#include <linux/hw_breakpoint.h>
@@ -19,6 +20,8 @@
#include <linux/err.h>
#include <sys/ioctl.h>
#include <sys/resource.h>
+#include <sys/types.h>
+#include <dirent.h>
#include "asm/bug.h"
#include "callchain.h"
#include "cgroup.h"
@@ -2472,6 +2475,42 @@ bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
return false;
}

+static bool find_process(const char *name)
+{
+ size_t len = strlen(name);
+ DIR *dir;
+ struct dirent *d;
+ int ret = -1;
+
+ dir = opendir(procfs__mountpoint());
+ if (!dir)
+ return false;
+
+ /* Walk through the directory. */
+ while (ret && (d = readdir(dir)) != NULL) {
+ char path[PATH_MAX];
+ char *data;
+ size_t size;
+
+ if ((d->d_type != DT_DIR) ||
+ !strcmp(".", d->d_name) ||
+ !strcmp("..", d->d_name))
+ continue;
+
+ scnprintf(path, sizeof(path), "%s/%s/comm",
+ procfs__mountpoint(), d->d_name);
+
+ if (filename__read_str(path, &data, &size))
+ continue;
+
+ ret = strncmp(name, data, len);
+ free(data);
+ }
+
+ closedir(dir);
+ return ret ? false : true;
+}
+
int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
int err, char *msg, size_t size)
{
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 28c9f335006c..3cd42995ac6f 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -343,43 +343,6 @@ int perf_event_paranoid(void)

return value;
}
-
-bool find_process(const char *name)
-{
- size_t len = strlen(name);
- DIR *dir;
- struct dirent *d;
- int ret = -1;
-
- dir = opendir(procfs__mountpoint());
- if (!dir)
- return false;
-
- /* Walk through the directory. */
- while (ret && (d = readdir(dir)) != NULL) {
- char path[PATH_MAX];
- char *data;
- size_t size;
-
- if ((d->d_type != DT_DIR) ||
- !strcmp(".", d->d_name) ||
- !strcmp("..", d->d_name))
- continue;
-
- scnprintf(path, sizeof(path), "%s/%s/comm",
- procfs__mountpoint(), d->d_name);
-
- if (filename__read_str(path, &data, &size))
- continue;
-
- ret = strncmp(name, data, len);
- free(data);
- }
-
- closedir(dir);
- return ret ? false : true;
-}
-
static int
fetch_ubuntu_kernel_version(unsigned int *puint)
{
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 21c6db173bcc..9ae7e6e35f9a 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -49,8 +49,6 @@ int hex2u64(const char *ptr, u64 *val);
extern unsigned int page_size;
extern int cacheline_size;

-bool find_process(const char *name);
-
int fetch_kernel_version(unsigned int *puint,
char *str, size_t str_sz);
#define KVER_VERSION(x) (((x) >> 16) & 0xff)
--
2.9.4