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Commit e49859e7 authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by Linus Torvalds
Browse files

pidns: remove now unused find_pid function. 



This one had the only users so far - the kill_proc, which is removed, so
drop this (invalid in namespaced world) call too.

And of course - erase all references on it from comments.

Signed-off-by: default avatarPavel Emelyanov <xemul@openvz.org>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 19b0cfcc

include/linux/pid.h

+1 −3
Original line number Diff line number Diff line
@@ -48,7 +48,7 @@ enum pid_type 
 */



struct upid {

	/* Try to keep pid_chain in the same cacheline as nr for find_pid */

	/* Try to keep pid_chain in the same cacheline as nr for find_vpid */

	int nr;

	struct pid_namespace *ns;

	struct hlist_node pid_chain;
@@ -105,14 +105,12 @@ extern struct pid_namespace init_pid_ns; 
 * or rcu_read_lock() held.

 *

 * find_pid_ns() finds the pid in the namespace specified

 * find_pid() find the pid by its global id, i.e. in the init namespace

 * find_vpid() finr the pid by its virtual id, i.e. in the current namespace

 *

 * see also find_task_by_pid() set in include/linux/sched.h

 */

extern struct pid *find_pid_ns(int nr, struct pid_namespace *ns);

extern struct pid *find_vpid(int nr);

extern struct pid *find_pid(int nr);



/*

 * Lookup a PID in the hash table, and return with it's count elevated.

include/linux/sched.h

+1 −1
Original line number Diff line number Diff line
@@ -1718,7 +1718,7 @@ extern struct pid_namespace init_pid_ns; 
 * find_task_by_pid():

 *      finds a task by its global pid

 *

 * see also find_pid() etc in include/linux/pid.h

 * see also find_vpid() etc in include/linux/pid.h

 */



extern struct task_struct *find_task_by_pid_type_ns(int type, int pid,

kernel/pid.c

+1 −7
Original line number Diff line number Diff line
@@ -309,12 +309,6 @@ struct pid *find_vpid(int nr) 
}

EXPORT_SYMBOL_GPL(find_vpid);



struct pid *find_pid(int nr)

{

	return find_pid_ns(nr, &init_pid_ns);

}

EXPORT_SYMBOL_GPL(find_pid);



/*

 * attach_pid() must be called with the tasklist_lock write-held.

 */
@@ -483,7 +477,7 @@ EXPORT_SYMBOL(task_session_nr_ns); 
/*

 * Used by proc to find the first pid that is greater then or equal to nr.

 *

 * If there is a pid at nr this function is exactly the same as find_pid.

 * If there is a pid at nr this function is exactly the same as find_pid_ns.

 */

struct pid *find_ge_pid(int nr, struct pid_namespace *ns)

{