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Subject[PATCH -mm 3/7] Freezer: Remove PF_NOFREEZE from rcutorture thread
Date
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>
Acked-by: Pavel Machek <pavel@ucw.cz>
---
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 2007-02-25 12:07:15.000000000 +0100
+++ linux-2.6.20-mm2/kernel/rcutorture.c 2007-02-25 12:49:23.000000000 +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())
-
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