linux-kernel - [PATCH] Net / pktgen: Fix freezing problem

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Message-Id: <201002042250.58944.rjw@sisk.pl>
Date:	Thu, 4 Feb 2010 22:50:58 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	NetDev <netdev@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	Ciprian Dorin Craciun <ciprian.craciun@...il.com>
Subject: [PATCH] Net / pktgen: Fix freezing problem

From: Rafael J. Wysocki <rjw@...k.pl>
Subject: Net / pktgen: Fix freezing problem

Add missing try_to_freeze() to one of the pktgen_thread_worker() code
paths so that it doesn't block suspend/hibernation.

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=15006

Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
Reported-and-tested-by: Ciprian Dorin Craciun <ciprian.craciun@...il.com>
---
 net/core/pktgen.c |    1 +
 1 file changed, 1 insertion(+)

Index: linux-2.6/net/core/pktgen.c
===================================================================
--- linux-2.6.orig/net/core/pktgen.c
+++ linux-2.6/net/core/pktgen.c
@@ -3524,6 +3524,7 @@ static int pktgen_thread_worker(void *ar
 			wait_event_interruptible_timeout(t->queue,
 							 t->control != 0,
 							 HZ/10);
+			try_to_freeze();
 			continue;
 		}
 
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