aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorGui Jianfeng <guijianfeng@cn.fujitsu.com>2010-06-16 13:21:44 +0800
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-07-01 14:02:38 -0300
commitc214909b36efec632432acdcbfacdd46a6e11370 (patch)
treedec6f8d89bf32b387de5312ed5d0354aad6468e6
parenta1e80fafc9f0742a1776a0490258cb64912411b0 (diff)
downloadlinux-2.6.34-ux500-c214909b36efec632432acdcbfacdd46a6e11370.tar.gz
perf tools: Fix find tids routine by excluding "." and ".."
Introduce a filter function to skip "." and ".." directories when calculating tid number, otherwise tid 0 will be included in the all_tid result array. Cc: Ingo Molnar <mingo@elte.hu> LKML-Reference: <4C185F68.1020505@cn.fujitsu.com> Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/thread.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 1f7ecd47f49..9a448b47400 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -7,6 +7,15 @@
#include "util.h"
#include "debug.h"
+/* Skip "." and ".." directories */
+static int filter(const struct dirent *dir)
+{
+ if (dir->d_name[0] == '.')
+ return 0;
+ else
+ return 1;
+}
+
int find_all_tid(int pid, pid_t ** all_tid)
{
char name[256];
@@ -16,7 +25,7 @@ int find_all_tid(int pid, pid_t ** all_tid)
int i;
sprintf(name, "/proc/%d/task", pid);
- items = scandir(name, &namelist, NULL, NULL);
+ items = scandir(name, &namelist, filter, NULL);
if (items <= 0)
return -ENOENT;
*all_tid = malloc(sizeof(pid_t) * items);