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From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: LKML <linux-kernel@vger.kernel.org>
Cc: paulmck@linux.vnet.ibm.com, ego@in.ibm.com, akpm@osdl.org,
	mingo@elte.hu, vatsa@in.ibm.com, dipankar@in.ibm.com,
	venkatesh.pallipadi@intel.com, Pavel Machek <pavel@ucw.cz>,
	"Aneesh Kumar" <aneesh.kumar@gmail.com>
Subject: [RFC][PATCH 5/7] Freezer: Remove PF_NOFREEZE from rcutorture thread
Date: Fri, 23 Feb 2007 11:23:43 +0100	[thread overview]
Message-ID: <200702231123.44687.rjw@sisk.pl> (raw)
In-Reply-To: <200702231116.23607.rjw@sisk.pl>

From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

Remove PF_NOFREEZE from the rcutorture thread, adding a try_to_freeze() call as
required.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
 kernel/rcutorture.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Index: linux-2.6.20-mm2/kernel/rcutorture.c
===================================================================
--- linux-2.6.20-mm2.orig/kernel/rcutorture.c	2007-02-22 23:51:54.000000000 +0100
+++ linux-2.6.20-mm2/kernel/rcutorture.c	2007-02-22 23:55:12.000000000 +0100
@@ -46,6 +46,7 @@
 #include <linux/byteorder/swabb.h>
 #include <linux/stat.h>
 #include <linux/srcu.h>
+#include <linux/freezer.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Paul E. McKenney <paulmck@us.ibm.com> and "
@@ -585,7 +586,6 @@ rcu_torture_writer(void *arg)
 
 	VERBOSE_PRINTK_STRING("rcu_torture_writer task started");
 	set_user_nice(current, 19);
-	current->flags |= PF_NOFREEZE;
 
 	do {
 		schedule_timeout_uninterruptible(1);
@@ -607,6 +607,7 @@ rcu_torture_writer(void *arg)
 		}
 		rcu_torture_current_version++;
 		oldbatch = cur_ops->completed();
+		try_to_freeze();
 	} while (!kthread_should_stop() && !fullstop);
 	VERBOSE_PRINTK_STRING("rcu_torture_writer task stopping");
 	while (!kthread_should_stop())


  parent reply	other threads:[~2007-02-23 11:55 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-23 10:16 [RFC][PATCH 0/7] Freezer: Hardening and preparation for CPU hotplug changes Rafael J. Wysocki
2007-02-23 10:18 ` [RFC][PATCH 1/7] Freezer: Read PF_BORROWED_MM in a nonracy way Rafael J. Wysocki
2007-02-25 10:43   ` Pavel Machek
2007-02-23 10:19 ` [RFC][PATCH 2/7] Freezer: Fix memory ordering in refrigerator Rafael J. Wysocki
2007-02-23 10:21 ` [RFC][PATCH 3/7] Freezer: Close theoretical race between refrigerator and thaw_tasks Rafael J. Wysocki
2007-02-25 10:44   ` Pavel Machek
2007-02-23 10:22 ` [RFC][PATCH 4/7] Freezer: Fix vfork problem Rafael J. Wysocki
2007-02-25 10:46   ` Pavel Machek
2007-02-25 10:45     ` Rafael J. Wysocki
2007-02-25 12:59       ` Rafael J. Wysocki
2007-02-25 14:33         ` Aneesh Kumar
2007-02-25 15:05           ` Rafael J. Wysocki
2007-02-25 15:28             ` Aneesh Kumar
2007-02-25 15:40               ` Aneesh Kumar
2007-02-25 19:17                 ` Rafael J. Wysocki
2007-02-25 20:31                   ` Oleg Nesterov
2007-02-25 20:33                     ` Rafael J. Wysocki
2007-02-25 13:01     ` Aneesh Kumar
2007-02-25 13:43       ` Rafael J. Wysocki
2007-02-23 10:23 ` Rafael J. Wysocki [this message]
2007-02-25 10:44   ` [RFC][PATCH 5/7] Freezer: Remove PF_NOFREEZE from rcutorture thread Pavel Machek
2007-02-23 10:25 ` [RFC][PATCH 6/7] Freezer: Remove PF_NOFREEZE from bluetooth threads Rafael J. Wysocki
2007-02-25 10:44   ` Pavel Machek
2007-02-25 23:53   ` Marcel Holtmann
2007-02-23 10:26 ` [RFC][PATCH 7/7] Freezer: Add try_to_freeze calls to all kernel threads Rafael J. Wysocki
2007-02-25 10:45   ` Pavel Machek

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