From: "Steven Rostedt (VMware)" <rostedt@xxxxxxxxxxx>
Instead of walking the instances directory, use the tracefs_instances()
function to find all the instances.
Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
---
tracecmd/trace-list.c | 29 +++++++++--------------------
1 file changed, 9 insertions(+), 20 deletions(-)
diff --git a/tracecmd/trace-list.c b/tracecmd/trace-list.c
index 0fbb8eabd44b..8badd1f2e3e3 100644
--- a/tracecmd/trace-list.c
+++ b/tracecmd/trace-list.c
@@ -484,31 +484,20 @@ static void show_functions(const char *funcre)
static void show_buffers(void)
{
- struct dirent *dent;
- DIR *dir;
- char *path;
- int printed = 0;
+ char **list;
+ int i;
- path = tracefs_get_tracing_file("instances");
- dir = opendir(path);
- tracefs_put_tracing_file(path);
- if (!dir)
+ list = tracefs_instances(NULL);
+ if (!list)
die("Can not read instance directory");
- while ((dent = readdir(dir))) {
- const char *name = dent->d_name;
-
- if (strcmp(name, ".") == 0 ||
- strcmp(name, "..") == 0)
- continue;
-
- printf("%s\n", name);
- printed = 1;
- }
- closedir(dir);
+ for (i = 0; list[i]; i++)
+ printf("%s\n", list[i]);
- if (!printed)
+ if (!i)
printf("No buffer instances defined\n");
+
+ tracefs_list_free(list);
}
--
2.45.2
|