[PATCH] pid: remove the now unused kill_pg kill_pg_info and __kill_pg_info

Now that I have changed all of the in-tree users remove the old version of
these functions.  This should make it clear to any out of tree users that they
should be using kill_pgrp kill_pgrp_info or __kill_pgrp_info instead.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/sched.h

@@ -1329,14 +1329,11 @@ extern int kill_pid_info(int sig, struct siginfo *info, struct pid *pid);
 extern int kill_pid_info_as_uid(int, struct siginfo *, struct pid *, uid_t, uid_t, u32);
 extern int kill_pgrp(struct pid *pid, int sig, int priv);
 extern int kill_pid(struct pid *pid, int sig, int priv);
-extern int __kill_pg_info(int sig, struct siginfo *info, pid_t pgrp);
-extern int kill_pg_info(int, struct siginfo *, pid_t);
 extern void do_notify_parent(struct task_struct *, int);
 extern void force_sig(int, struct task_struct *);
 extern void force_sig_specific(int, struct task_struct *);
 extern int send_sig(int, struct task_struct *, int);
 extern void zap_other_threads(struct task_struct *p);
-extern int kill_pg(pid_t, int, int);
 extern int kill_proc(pid_t, int, int);
 extern struct sigqueue *sigqueue_alloc(void);
 extern void sigqueue_free(struct sigqueue *);

kernel/signal.c

@@ -1096,26 +1096,6 @@ int kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp)
 	return retval;
 }
 
-int __kill_pg_info(int sig, struct siginfo *info, pid_t pgrp)
-{
-	if (pgrp <= 0)
-		return -EINVAL;
-
-	return __kill_pgrp_info(sig, info, find_pid(pgrp));
-}
-
-int
-kill_pg_info(int sig, struct siginfo *info, pid_t pgrp)
-{
-	int retval;
-
-	read_lock(&tasklist_lock);
-	retval = __kill_pg_info(sig, info, pgrp);
-	read_unlock(&tasklist_lock);
-
-	return retval;
-}
-
 int kill_pid_info(int sig, struct siginfo *info, struct pid *pid)
 {
 	int error;
@@ -1314,12 +1294,6 @@ int kill_pid(struct pid *pid, int sig, int priv)
 }
 EXPORT_SYMBOL(kill_pid);
 
-int
-kill_pg(pid_t pgrp, int sig, int priv)
-{
-	return kill_pg_info(sig, __si_special(priv), pgrp);
-}
-
 int
 kill_proc(pid_t pid, int sig, int priv)
 {
@@ -1959,7 +1933,6 @@ EXPORT_SYMBOL(recalc_sigpending);
 EXPORT_SYMBOL_GPL(dequeue_signal);
 EXPORT_SYMBOL(flush_signals);
 EXPORT_SYMBOL(force_sig);
-EXPORT_SYMBOL(kill_pg);
 EXPORT_SYMBOL(kill_proc);
 EXPORT_SYMBOL(ptrace_notify);
 EXPORT_SYMBOL(send_sig);