linux-kernel - [PATCH 3/4] signal: remove superflous try_to_freeze() loop in do_signal

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Message-Id: <1293016398-18001-4-git-send-email-tj@kernel.org>
Date:	Wed, 22 Dec 2010 12:13:17 +0100
From:	Tejun Heo <tj@...nel.org>
To:	oleg@...hat.com, roland@...hat.com, linux-kernel@...r.kernel.org,
	rjw@...k.pl, jan.kratochvil@...hat.com
Cc:	Tejun Heo <tj@...nel.org>
Subject: [PATCH 3/4] signal: remove superflous try_to_freeze() loop in do_signal_stop()

do_signal_stop() is used only by get_signal_to_deliver() and after a
successful signal stop, it always calls try_to_freeze(), so the
try_to_freeze() loop around schedule() in do_signal_stop() is
superflous and confusing.  Remove it.

Signed-off-by: Tejun Heo <tj@...nel.org>
Acked-by: Rafael J. Wysocki <rjw@...k.pl>
Acked-by: Oleg Nesterov <oleg@...hat.com>
Cc: Roland McGrath <roland@...hat.com>
---
 kernel/signal.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/kernel/signal.c b/kernel/signal.c
index fe004b5..0a6816a 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1781,9 +1781,7 @@ static int do_signal_stop(int signr)
 	}
 
 	/* Now we don't run again until woken by SIGCONT or SIGKILL */
-	do {
-		schedule();
-	} while (try_to_freeze());
+	schedule();
 
 	tracehook_finish_jctl();
 	current->exit_code = 0;
-- 
1.7.1

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