linux-kernel - [PATCH] signals-fold-sig_ignored-into-handle_stop

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Message-ID: <20080319182043.GA6390@tv-sign.ru>
Date:	Wed, 19 Mar 2008 21:20:43 +0300
From:	Oleg Nesterov <oleg@...sign.ru>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Roland McGrath <roland@...hat.com>, linux-kernel@...r.kernel.org
Subject: [PATCH] signals-fold-sig_ignored-into-handle_stop_signal-comment

comments update for signals-fold-sig_ignored-into-handle_stop_signal.patch

Signed-off-by: Oleg Nesterov <oleg@...sign.ru>

--- 25/kernel/signal.c~DOC_2_PREPARE	2008-03-19 20:53:45.000000000 +0300
+++ 25/kernel/signal.c	2008-03-19 21:15:30.000000000 +0300
@@ -572,11 +572,14 @@ static int check_kill_permission(int sig
 static void do_notify_parent_cldstop(struct task_struct *tsk, int why);
 
 /*
- * Handle magic process-wide effects of stop/continue signals.
- * Unlike the signal actions, these happen immediately at signal-generation
+ * Handle magic process-wide effects of stop/continue signals. Unlike
+ * the signal actions, these happen immediately at signal-generation
  * time regardless of blocking, ignoring, or handling.  This does the
  * actual continuing for SIGCONT, but not the actual stopping for stop
- * signals.  The process stop is done as a signal action for SIG_DFL.
+ * signals. The process stop is done as a signal action for SIG_DFL.
+ *
+ * Returns true if the signal should be actually delivered, otherwise
+ * it should be dropped.
  */
 static int prepare_signal(int sig, struct task_struct *p)
 {

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