+ signals-send_sigqueue-dont-forget-about-handle_stop_signal.patch added to -mm tree

[akpm@linux-foundation.org]

The patch titled
     signals: send_sigqueue: don't forget about handle_stop_signal()
has been added to the -mm tree.  Its filename is
     signals-send_sigqueue-dont-forget-about-handle_stop_signal.patch

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

------------------------------------------------------
Subject: signals: send_sigqueue: don't forget about handle_stop_signal()
From: Oleg Nesterov <oleg@tv-sign.ru>

send_group_sigqueue() calls handle_stop_signal(), send_sigqueue() doesn't. 
This is not consistent and in fact I'd say this is (minor) bug.

Move handle_stop_signal() from send_group_sigqueue() to do_send_sigqueue(),
the latter is called by send_sigqueue() too.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/signal.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff -puN kernel/signal.c~signals-send_sigqueue-dont-forget-about-handle_stop_signal kernel/signal.c
--- a/kernel/signal.c~signals-send_sigqueue-dont-forget-about-handle_stop_signal
+++ a/kernel/signal.c
@@ -1274,8 +1274,10 @@ void sigqueue_free(struct sigqueue *q)
 }
 
 static int do_send_sigqueue(int sig, struct sigqueue *q, struct task_struct *t,
-		struct sigpending *pending)
+				struct sigpending *pending)
 {
+	handle_stop_signal(sig, t);
+
 	if (unlikely(!list_empty(&q->list))) {
 		/*
 		 * If an SI_TIMER entry is already queue just increment
@@ -1335,7 +1337,6 @@ send_group_sigqueue(int sig, struct sigq
 	read_lock(&tasklist_lock);
 	/* Since it_lock is held, p->sighand cannot be NULL. */
 	spin_lock_irqsave(&p->sighand->siglock, flags);
-	handle_stop_signal(sig, p);
 
 	ret = do_send_sigqueue(sig, q, p, &p->signal->shared_pending);
 
_

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

git-hrt.patch
kthread-call-wake_up_process-without-the-lock-being-held.patch
mmap_region-cleanup-the-final-vma_merge-related-code.patch
remove-unused-variable-from-send_signal.patch
turn-legacy_queue-macro-into-static-inline-function.patch
consolidate-checking-for-ignored-legacy-signals.patch
consolidate-checking-for-ignored-legacy-signals-simplify.patch
signals-do_signal_stop-use-signal_group_exit.patch
signals-do_group_exit-use-signal_group_exit-more-consistently.patch
lock_task_sighand-add-rcu-lock-unlock.patch
k_getrusage-dont-take-rcu_read_lock.patch
do_task_stat-dont-take-rcu_read_lock.patch
signals-consolidate-checks-for-whether-or-not-to-ignore-a-signal.patch
signals-clean-dequeue_signal-from-excess-checks-and-assignments.patch
signals-consolidate-send_sigqueue-and-send_group_sigqueue.patch
signals-cleanup-security_task_kill-usage-implementation.patch
signals-re-assign-cld_continued-notification-from-the-sender-to-reciever.patch
kill_pid_info-dont-take-now-unneeded-tasklist_lock.patch
handle_stop_signal-unify-partial-full-stop-handling.patch
handle_stop_signal-use-the-cached-p-signal-value.patch
get_signal_to_deliver-use-the-cached-signal-sighand-values.patch
signals-send_sigqueue-dont-take-rcu-lock.patch
signals-send_sigqueue-dont-forget-about-handle_stop_signal.patch
ptrace-introduce-task_detached-helper.patch
reparent_thread-use-same_thread_group.patch
document-de_thread-with-exit_notify-connection.patch
ptrace-introduce-ptrace_reparented-helper.patch
ptrace-__ptrace_unlink-use-the-ptrace_reparented-helper.patch
workqueues-shrink-cpu_populated_map-when-cpu-dies.patch
workqueues-shrink-cpu_populated_map-when-cpu-dies-fix.patch
cleanup_workqueue_thread-remove-the-unneeded-cpu-parameter.patch
simplify-cpu_hotplug_begin-put_online_cpus.patch
redo-locking-of-tty-pgrp.patch
resume-tty-on-susp-and-fix-crnl-order-in-n_tty-line-discipline.patch
tty_io-fix-remaining-pid-struct-locking.patch
tty_io-fix-remaining-pid-struct-locking-small-cleanup.patch
procfs-task-exe-symlink.patch
procfs-task-exe-symlink-fix.patch
procfs-task-exe-symlink-fix-2.patch
free_pidmap-turn-it-into-free_pidmapstruct-upid.patch
put_pid-make-sure-we-dont-free-the-live-pid.patch