copy_signal() cleanup: kill taskstats_tgid_init() and acct_init_pacct()

Kill unused functions taskstats_tgid_init() and acct_init_pacct() because
we don't use them anywhere after using kmem_cache_zalloc() in
copy_signal().

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 0 insertions, 19 deletions

diff --git a/include/linux/acct.h b/include/linux/acct.h
index 882dc7248766..93f46096ad4c 100644
--- a/include/linux/acct.h
+++ b/include/linux/acct.h
@@ -123,14 +123,12 @@ struct pacct_struct;
 struct pid_namespace;
 extern void acct_auto_close_mnt(struct vfsmount *m);
 extern void acct_auto_close(struct super_block *sb);
-extern void acct_init_pacct(struct pacct_struct *pacct);
 extern void acct_collect(long exitcode, int group_dead);
 extern void acct_process(void);
 extern void acct_exit_ns(struct pid_namespace *);
 #else
 #define acct_auto_close_mnt(x)  do { } while (0)
 #define acct_auto_close(x)      do { } while (0)
-#define acct_init_pacct(x)      do { } while (0)
 #define acct_collect(x,y)       do { } while (0)
 #define acct_process()          do { } while (0)
 #define acct_exit_ns(ns)        do { } while (0)
diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h
index 3398f4553269..b6523c1427ce 100644
--- a/include/linux/taskstats_kern.h
+++ b/include/linux/taskstats_kern.h
@@ -14,11 +14,6 @@
 extern struct kmem_cache *taskstats_cache;
 extern struct mutex taskstats_exit_mutex;
 
-static inline void taskstats_tgid_init(struct signal_struct *sig)
-{
-        sig->stats = NULL;
-}
-
 static inline void taskstats_tgid_free(struct signal_struct *sig)
 {
         if (sig->stats)
@@ -30,8 +25,6 @@ extern void taskstats_init_early(void);
 #else
 static inline void taskstats_exit(struct task_struct *tsk, int group_dead)
 {}
-static inline void taskstats_tgid_init(struct signal_struct *sig)
-{}
 static inline void taskstats_tgid_free(struct signal_struct *sig)
 {}
 static inline void taskstats_init_early(void)
diff --git a/kernel/acct.c b/kernel/acct.c
index a6605ca921b6..24f8c81fc48d 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -588,16 +588,6 @@ out:
 }
 
 /**
- * acct_init_pacct - initialize a new pacct_struct
- * @pacct: per-process accounting info struct to initialize
- */
-void acct_init_pacct(struct pacct_struct *pacct)
-{
-        memset(pacct, 0, sizeof(struct pacct_struct));
-        pacct->ac_utime = pacct->ac_stime = cputime_zero;
-}
-
-/**
  * acct_collect - collect accounting information into pacct_struct
  * @exitcode: task exit code
  * @group_dead: not 0, if this thread is the last one in the process.