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perf evsel: Adopt find_process()

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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@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2017-06-20 12:05:38 -03:00
parent 007b811b40
commit 2157f6ee18
3 changed files with 39 additions and 39 deletions
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39
tools/perf/util/evsel.c
View File

@ -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)
{

37
tools/perf/util/util.c
View File

@ -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)
{

2
tools/perf/util/util.h
View File

@ -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)