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Commit 163566f6 authored by Oleg Nesterov's avatar Oleg Nesterov
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tracing: send_sigqueue() needs trace_signal_generate() too 



Add trace_signal_generate() into send_sigqueue().

send_sigqueue() is very similar to __send_signal(), just it uses
the preallocated info. It should do the same wrt tracing.

Reported-by: default avatarSeiji Aguchi <saguchi@redhat.com>
Reviewed-by: default avatarSeiji Aguchi <seiji.aguchi@hds.com>
Acked-by: default avatarSteven Rostedt <rostedt@goodmis.org>
Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
parent 6c303d3a

kernel/signal.c

+5 −1
Original line number Diff line number Diff line
@@ -1591,7 +1591,7 @@ int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group) 
	int sig = q->info.si_signo;

	struct sigpending *pending;

	unsigned long flags;

	int ret;

	int ret, result;



	BUG_ON(!(q->flags & SIGQUEUE_PREALLOC));
@@ -1600,6 +1600,7 @@ int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group) 
		goto ret;



	ret = 1; /* the signal is ignored */

	result = TRACE_SIGNAL_IGNORED;

	if (!prepare_signal(sig, t, 0))

		goto out;
@@ -1611,6 +1612,7 @@ int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group) 
		 */

		BUG_ON(q->info.si_code != SI_TIMER);

		q->info.si_overrun++;

		result = TRACE_SIGNAL_ALREADY_PENDING;

		goto out;

	}

	q->info.si_overrun = 0;
@@ -1620,7 +1622,9 @@ int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group) 
	list_add_tail(&q->list, &pending->list);

	sigaddset(&pending->signal, sig);

	complete_signal(sig, t, group);

	result = TRACE_SIGNAL_DELIVERED;

out:

	trace_signal_generate(sig, &q->info, t, group, result);

	unlock_task_sighand(t, &flags);

ret:

	return ret;