+ pid_ns-de_thread-kill-the-now-unneeded-child_reaper-change.patch added to -mm tree

+ pid_ns-de_thread-kill-the-now-unneeded-child_reaper-change.patch added to -mm tree

[akpm]

The patch titled
     pid_ns: de_thread: kill the now unneeded ->child_reaper change
has been added to the -mm tree.  Its filename is
     pid_ns-de_thread-kill-the-now-unneeded-child_reaper-change.patch

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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/

------------------------------------------------------
Subject: pid_ns: de_thread: kill the now unneeded ->child_reaper change
From: Oleg Nesterov <oleg@tv-sign.ru>

de_thread() checks if the old leader was the ->child_reaper, this is not
possible any longer.  With the previous patch ->group_leader itself will
change ->child_reaper on exit.

Henceforth find_new_reaper() is the only function (apart from
initialization) which plays with ->child_reaper.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/exec.c |    2 --
 1 file changed, 2 deletions(-)

diff -puN fs/exec.c~pid_ns-de_thread-kill-the-now-unneeded-child_reaper-change fs/exec.c
--- a/fs/exec.c~pid_ns-de_thread-kill-the-now-unneeded-child_reaper-change
+++ a/fs/exec.c
@@ -822,8 +822,6 @@ static int de_thread(struct task_struct 
 			schedule();
 		}
 
-		if (unlikely(task_child_reaper(tsk) == leader))
-			task_active_pid_ns(tsk)->child_reaper = tsk;
 		/*
 		 * The only record we have of the real-time age of a
 		 * process, regardless of execs it's done, is start_time.
_

Patches currently in -mm which might be from oleg@tv-sign.ru are

exit-signals-use-of-uninitialized-field-notify_count.patch
pid_ns-zap_pid_ns_processes-fix-the-child_reaper-changing.patch
pid_ns-bug-11391-change-child_reaper-when-init-group_leader-exits.patch
linux-next.patch
posix-timers-dont-switch-to-group_leader-if-it_process-dies.patch
posix-timers-always-do-get_task_structtimer-it_process.patch
posix-timers-sys_timer_create-remove-the-buggy-pf_exiting-check.patch
posix-timers-sys_timer_create-simplify-and-s-tasklist-rcu.patch
posix-timers-move-the-initialization-of-timer-sigq-from-send-to-create-path.patch
posix-timers-sys_timer_create-cleanup-the-error-handling.patch
posix-timers-kill-it_sigev_signo-and-it_sigev_value.patch
posix-timers-lock_timer-kill-the-bogus-it_id-check.patch
posix-timers-lock_timer-make-it-readable.patch
posix-timers-use-struct-pid-instead-of-struct-task_struct.patch
posix-timers-check-it_signal-instead-of-it_pid-to-validate-the-timer.patch
posix-timers-simplify-de_thread-exit_itimers-path.patch
make-ptrace_untrace-static.patch
coredump-format_corename-dont-append-%pid-if-multi-threaded.patch
kthread_bind-use-wait_task_inactivetask_uninterruptible.patch
pid_ns-de_thread-kill-the-now-unneeded-child_reaper-change.patch
pid_ns-kill-the-now-unused-task_child_reaper.patch