[PATCH] taskstats: cleanup do_exit() path

do_exit:
	taskstats_exit_alloc()
	...
	taskstats_exit_send()
	taskstats_exit_free()

I think this is not good, let it be a single function exported to the core
kernel, taskstats_exit(), which does alloc + send + free itself.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/kernel/exit.c b/kernel/exit.c
index 06de6c4e8ca3..4e3f919edc48 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -850,9 +850,7 @@ static void exit_notify(struct task_struct *tsk)
 fastcall NORET_TYPE void do_exit(long code)
 {
         struct task_struct *tsk = current;
-        struct taskstats *tidstats;
         int group_dead;
-        unsigned int mycpu;
 
         profile_task_exit(tsk);
 
@@ -890,8 +888,6 @@ fastcall NORET_TYPE void do_exit(long code)
                                 current->comm, current->pid,
                                 preempt_count());
 
-        taskstats_exit_alloc(&tidstats, &mycpu);
-
         acct_update_integrals(tsk);
         if (tsk->mm) {
                 update_hiwater_rss(tsk->mm);
@@ -911,8 +907,8 @@ fastcall NORET_TYPE void do_exit(long code)
 #endif
         if (unlikely(tsk->audit_context))
                 audit_free(tsk);
-        taskstats_exit_send(tsk, tidstats, group_dead, mycpu);
-        taskstats_exit_free(tidstats);
+
+        taskstats_exit(tsk, group_dead);
 
         exit_mm(tsk);