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| author | Gui Jianfeng <guijianfeng@cn.fujitsu.com> | 2010-06-16 13:21:44 +0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-07-01 14:02:38 -0300 |
| commit | c214909b36efec632432acdcbfacdd46a6e11370 (patch) | |
| tree | dec6f8d89bf32b387de5312ed5d0354aad6468e6 /tools | |
| parent | a1e80fafc9f0742a1776a0490258cb64912411b0 (diff) | |
| download | linux-c214909b36efec632432acdcbfacdd46a6e11370.tar.gz linux-c214909b36efec632432acdcbfacdd46a6e11370.tar.bz2 linux-c214909b36efec632432acdcbfacdd46a6e11370.zip | |
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>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/thread.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index 1f7ecd47f499..9a448b47400c 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); |