exit,stats: /* obey this comment */

There is a helpful comment in do_exit() that states we sync the mm's RSS
info before statistics gathering.

The function that does the statistics gathering is called right above that
comment.

Change the code to obey the comment.

Signed-off-by: Rik van Riel <riel@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/kernel/exit.c b/kernel/exit.c
index 185752a..031325e 100644 (file)
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -711,10 +711,10 @@ void do_exit(long code)
                        current->comm, task_pid_nr(current),
                        preempt_count());
 
-       acct_update_integrals(tsk);
        /* sync mm's RSS info before statistics gathering */
        if (tsk->mm)
                sync_mm_rss(tsk->mm);
+       acct_update_integrals(tsk);
        group_dead = atomic_dec_and_test(&tsk->signal->live);
        if (group_dead) {
                hrtimer_cancel(&tsk->signal->real_timer);