};
/* just cache last used one */
-static struct cgroupfs_cache_entry cached;
+static struct cgroupfs_cache_entry *cached;
int cgroupfs_find_mountpoint(char *buf, size_t maxlen, const char *subsys)
{
char *p, *path;
char mountpoint[PATH_MAX];
- if (!strcmp(cached.subsys, subsys)) {
- if (strlen(cached.mountpoint) < maxlen) {
- strcpy(buf, cached.mountpoint);
+ if (cached && !strcmp(cached->subsys, subsys)) {
+ if (strlen(cached->mountpoint) < maxlen) {
+ strcpy(buf, cached->mountpoint);
return 0;
}
return -1;
free(line);
fclose(fp);
- strncpy(cached.subsys, subsys, sizeof(cached.subsys) - 1);
- strcpy(cached.mountpoint, mountpoint);
+ if (!cached)
+ cached = calloc(1, sizeof(*cached));
+
+ if (cached) {
+ strncpy(cached->subsys, subsys, sizeof(cached->subsys) - 1);
+ strcpy(cached->mountpoint, mountpoint);
+ }
if (mountpoint[0] && strlen(mountpoint) < maxlen) {
strcpy(buf, mountpoint);