[PATCH -mm 2/2] send_sigqueue: don't forget about handle_stop_signal()

From: Oleg Nesterov
Date: Wed Mar 05 2008 - 16:54:43 EST


(on top of Pavel's signals-consolidate-send_sigqueue-and-send_group_sigqueue.patch)

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@xxxxxxxxxx>

--- 25/kernel/signal.c~2_SS_HSS 2008-03-06 00:35:35.000000000 +0300
+++ 25/kernel/signal.c 2008-03-06 00:43:50.000000000 +0300
@@ -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);


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