commands: simplify lxc_cmd_get_cgroup_ctx()

src/lxc/cgroups/cgfsng.c

@@ -3380,8 +3380,7 @@ static int __cgroup_attach_many(const struct lxc_conf *conf, const char *name,
 	ssize_t pidstr_len;
 	char pidstr[INTTYPE_TO_STRLEN(pid_t)];
 
-	ret = lxc_cmd_get_cgroup_ctx(name, lxcpath, NULL, true,
-				     sizeof(struct cgroup_ctx), ctx);
+	ret = lxc_cmd_get_cgroup_ctx(name, lxcpath, sizeof(struct cgroup_ctx), ctx);
 	if (ret < 0)
 		return ret_errno(ENOSYS);
 

src/lxc/commands.c

@@ -629,7 +629,6 @@ static int lxc_cmd_get_seccomp_notify_fd_callback(int fd, struct lxc_cmd_req *re
 }
 
 int lxc_cmd_get_cgroup_ctx(const char *name, const char *lxcpath,
-			   const char *controller, bool batch,
 			   size_t size_ret_ctx, struct cgroup_ctx *ret_ctx)
 {
 	struct lxc_cmd_rr cmd = {
@@ -644,9 +643,6 @@ int lxc_cmd_get_cgroup_ctx(const char *name, const char *lxcpath,
 	};
 	int ret, stopped;
 
-	if (batch && !is_empty_string(controller))
-		return ret_errno(EINVAL);
-
 	ret = lxc_cmd(name, &cmd, &stopped, lxcpath, NULL);
 	if (ret < 0)
 		return log_debug_errno(-1, errno, "Failed to process cgroup context command");

src/lxc/commands.h

@@ -125,7 +125,6 @@ __hidden extern int lxc_cmd_console_log(const char *name, const char *lxcpath,
 					struct lxc_console_log *log);
 __hidden extern int lxc_cmd_get_seccomp_notify_fd(const char *name, const char *lxcpath);
 __hidden extern int lxc_cmd_get_cgroup_ctx(const char *name, const char *lxcpath,
-					   const char *controller, bool batch,
 					   size_t size_ret_ctx,
 					   struct cgroup_ctx *ret_ctx);
 __hidden extern int lxc_cmd_seccomp_notify_add_listener(const char *name, const char *lxcpath, int fd,