pidns: remove unused is_container_init() (a5ba911e) · Commits · 戴 / test

Since commit ("CRED: Neuter sys_capset()") is_container_init() has no callers. Signed-off-by:

Gao feng <gaofeng@cn.fujitsu.com> Cc: David Howells <dhowells@redhat.com> Acked-by:

Serge Hallyn <serge.hallyn@canonical.com> Cc: James Morris <jmorris@namei.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:

include/linux/sched.h

+0 −6

Original line number	Diff line number	Diff line
		@@ -1778,12 +1778,6 @@ static inline int is_global_init(struct task_struct *tsk)
		return tsk->pid == 1;
		}

		/*
		* is_container_init:
		* check whether in the task is init in its own pid namespace.
		*/
		extern int is_container_init(struct task_struct *tsk);

		extern struct pid *cad_pid;

		extern void free_task(struct task_struct *tsk);

+0 −15

Original line number	Diff line number	Diff line
		@@ -81,21 +81,6 @@ struct pid_namespace init_pid_ns = {
		};
		EXPORT_SYMBOL_GPL(init_pid_ns);

		int is_container_init(struct task_struct *tsk)
		{
		int ret = 0;
		struct pid *pid;

		rcu_read_lock();
		pid = task_pid(tsk);
		if (pid != NULL && pid->numbers[pid->level].nr == 1)
		ret = 1;
		rcu_read_unlock();

		return ret;
		}
		EXPORT_SYMBOL(is_container_init);

		/*
		* Note: disable interrupts while the pidmap_lock is held as an
		* interrupt might come in and do read_lock(&tasklist_lock).