linux-kernel - [PATCH] do_wait_for_common: use signal_pending

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Message-ID: <20080724163459.GA3151@tv-sign.ru>
Date:	Thu, 24 Jul 2008 20:34:59 +0400
From:	Oleg Nesterov <oleg@...sign.ru>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Ingo Molnar <mingo@...e.hu>, Matthew Wilcox <matthew@....cx>,
	Roland McGrath <roland@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] do_wait_for_common: use signal_pending_state()

Change do_wait_for_common() to use signal_pending_state() instead of
open coding.

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

--- 26-rc2/kernel/sched.c~1_SPS_WAIT_FOR	2008-07-22 18:36:58.000000000 +0400
+++ 26-rc2/kernel/sched.c	2008-07-24 19:54:12.000000000 +0400
@@ -4735,10 +4735,7 @@ do_wait_for_common(struct completion *x,
 		wait.flags |= WQ_FLAG_EXCLUSIVE;
 		__add_wait_queue_tail(&x->wait, &wait);
 		do {
-			if ((state == TASK_INTERRUPTIBLE &&
-			     signal_pending(current)) ||
-			    (state == TASK_KILLABLE &&
-			     fatal_signal_pending(current))) {
+			if (signal_pending_state(state, current)) {
 				timeout = -ERESTARTSYS;
 				break;
 			}

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