return 0;
}
-int cg_rmdir(const char *controller, const char *path) {
+int cg_rmdir(const char *controller, const char *path, bool honour_sticky) {
char *p;
int r;
- if ((r = cg_get_path(controller, path, NULL, &p)) < 0)
+ r = cg_get_path(controller, path, NULL, &p);
+ if (r < 0)
return r;
+ if (honour_sticky) {
+ char *tasks;
+
+ /* If the sticky bit is set don't remove the directory */
+
+ tasks = strappend(p, "/tasks");
+ if (!tasks) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ r = file_is_sticky(tasks);
+ free(tasks);
+
+ if (r > 0) {
+ free(p);
+ return 0;
+ }
+ }
+
r = rmdir(p);
free(p);
- return r < 0 ? -errno : 0;
+ return (r < 0 && errno != ENOENT) ? -errno : 0;
}
int cg_kill(const char *controller, const char *path, int sig, bool sigcont, bool ignore_self, Set *s) {
ret = r;
if (rem)
- if ((r = cg_rmdir(controller, path)) < 0) {
+ if ((r = cg_rmdir(controller, path, true)) < 0) {
if (ret >= 0 &&
r != -ENOENT &&
r != -EBUSY)
ret = r;
if (rem)
- if ((r = cg_rmdir(controller, from)) < 0) {
+ if ((r = cg_rmdir(controller, from, true)) < 0) {
if (ret >= 0 &&
r != -ENOENT &&
r != -EBUSY)
assert(controller);
assert(fs);
- if (!good) {
+ if (_unlikely_(!good)) {
int r;
r = path_is_mount_point("/sys/fs/cgroup");
if ((r = cg_get_path(controller, path, NULL, &fs)) < 0)
return r;
- r = rm_rf(fs, true, delete_root);
+ r = rm_rf(fs, true, delete_root, true);
free(fs);
return r == -ENOENT ? 0 : r;