[PATCH 2/2 (resend)] Get rid of the kill_pgrp_info() function

[Pavel Emelyanov <xemul@openvz.org>]

There's only one caller left - the kill_pgrp one - so merge
these two functions and forget the kill_pgrp_info one.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Reviewed-by: Oleg Nesterov <oleg@tv-sign.ru>

---
 include/linux/sched.h |    1 -
 kernel/signal.c       |   21 ++++++++-------------
 2 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1256e25..64def57 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1689,7 +1689,6 @@ extern int send_sig_info(int, struct siginfo *, struct task_struct *);
 extern int force_sigsegv(int, struct task_struct *);
 extern int force_sig_info(int, struct siginfo *, struct task_struct *);
 extern int __kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp);
-extern int kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp);
 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);
diff --git a/kernel/signal.c b/kernel/signal.c
index a805c74..2c1f08d 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1018,7 +1018,7 @@ int group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
 }
 
 /*
- * kill_pgrp_info() sends a signal to a process group: this is what the tty
+ * __kill_pgrp_info() sends a signal to a process group: this is what the tty
  * control characters do (^C, ^Z etc)
  */
 
@@ -1037,17 +1037,6 @@ int __kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp)
 	return success ? 0 : retval;
 }
 
-int kill_pgrp_info(int sig, struct siginfo *info, struct pid *pgrp)
-{
-	int retval;
-
-	read_lock(&tasklist_lock);
-	retval = __kill_pgrp_info(sig, info, pgrp);
-	read_unlock(&tasklist_lock);
-
-	return retval;
-}
-
 int kill_pid_info(int sig, struct siginfo *info, struct pid *pid)
 {
 	int error = -ESRCH;
@@ -1236,7 +1225,13 @@ force_sigsegv(int sig, struct task_struct *p)
 
 int kill_pgrp(struct pid *pid, int sig, int priv)
 {
-	return kill_pgrp_info(sig, __si_special(priv), pid);
+	int ret;
+
+	read_lock(&tasklist_lock);
+	ret = __kill_pgrp_info(sig, __si_special(priv), pid);
+	read_unlock(&tasklist_lock);
+
+	return ret;
 }
 EXPORT_SYMBOL(kill_pgrp);
 
-- 
1.5.3.4