diff --git a/Documentation/power/freezing-of-tasks.txt b/Documentation/power/freezing-of-tasks.txt
new file mode 100644
index 0000000..af1a282
--- /dev/null
+++ b/Documentation/power/freezing-of-tasks.txt
@@ -0,0 +1,160 @@
+Freezing of tasks
+	(C) 2007 Rafael J. Wysocki <rjw@sisk.pl>, GPL
+
+I. What is the freezing of tasks?
+
+The freezing of tasks is a mechanism by which user space processes and some
+kernel threads are controlled during hibernation or system-wide suspend (on some
+architectures).
+
+II. How does it work?
+
+There are four per-task flags used for that, PF_NOFREEZE, PF_FROZEN, TIF_FREEZE
+and PF_FREEZER_SKIP (the last one is auxiliary).  The tasks that have
+PF_NOFREEZE unset (all user space processes and some kernel threads) are
+regarded as 'freezable' and treated in a special way before the system enters a
+suspend state as well as before a hibernation image is created (in what follows
+we only consider hibernation, but the description also applies to suspend).
+
+Namely, as the first step of the hibernation procedure the function
+freeze_processes() (defined in kernel/power/process.c) is called.  It executes
+try_to_freeze_tasks() that sets TIF_FREEZE for all of the freezable tasks and
+sends a fake signal to each of them.  A task that receives such a signal and has
+TIF_FREEZE set, should react to it by calling the refrigerator() function
+(defined in kernel/power/process.c), which sets the task's PF_FROZEN flag,
+changes its state to TASK_UNINTERRUPTIBLE and makes it loop until PF_FROZEN is
+cleared for it.  Then, we say that the task is 'frozen' and therefore the set of
+functions handling this mechanism is called 'the freezer' (these functions are
+defined in kernel/power/process.c and include/linux/freezer.h).  User space
+processes are generally frozen before kernel threads.
+
+It is not recommended to call refrigerator() directly.  Instead, it is
+recommended to use the try_to_freeze() function (defined in
+include/linux/freezer.h), that checks the task's TIF_FREEZE flag and makes the
+task enter refrigerator() if the flag is set.
+
+For user space processes try_to_freeze() is called automatically from the
+signal-handling code, but the freezable kernel threads need to call it
+explicitly in suitable places.  The code to do this may look like the following:
+
+	do {
+		hub_events();
+		wait_event_interruptible(khubd_wait,
+					!list_empty(&hub_event_list));
+		try_to_freeze();
+	} while (!signal_pending(current));
+
+(from drivers/usb/core/hub.c::hub_thread()).
+
+If a freezable kernel thread fails to call try_to_freeze() after the freezer has
+set TIF_FREEZE for it, the freezing of tasks will fail and the entire
+hibernation operation will be cancelled.  For this reason, freezable kernel
+threads must call try_to_freeze() somewhere.
+
+After the system memory state has been restored from a hibernation image and
+devices have been reinitialized, the function thaw_processes() is called in
+order to clear the PF_FROZEN flag for each frozen task.  Then, the tasks that
+have been frozen leave refrigerator() and continue running.
+
+III. Which kernel threads are freezable?
+
+Kernel threads are not freezable by default.  However, a kernel thread may clear
+PF_NOFREEZE for itself by calling set_freezable() (the resetting of PF_NOFREEZE
+directly is strongly discouraged).  From this point it is regarded as freezable
+and must call try_to_freeze() in a suitable place.
+
+IV. Why do we do that?
+
+Generally speaking, there is a couple of reasons to use the freezing of tasks:
+
+1. The principal reason is to prevent filesystems from being damaged after
+hibernation.  At the moment we have no simple means of checkpointing
+filesystems, so if there are any modifications made to filesystem data and/or
+metadata on disks, we cannot bring them back to the state from before the
+modifications.  At the same time each hibernation image contains some
+filesystem-related information that must be consistent with the state of the
+on-disk data and metadata after the system memory state has been restored from
+the image (otherwise the filesystems will be damaged in a nasty way, usually
+making them almost impossible to repair).  We therefore freeze tasks that might
+cause the on-disk filesystems' data and metadata to be modified after the
+hibernation image has been created and before the system is finally powered off.
+The majority of these are user space processes, but if any of the kernel threads
+may cause something like this to happen, they have to be freezable.
+
+2. The second reason is to prevent user space processes and some kernel threads
+from interfering with the suspending and resuming of devices.  A user space
+process running on a second CPU while we are suspending devices may, for
+example, be troublesome and without the freezing of tasks we would need some
+safeguards against race conditions that might occur in such a case.
+
+Although Linus Torvalds doesn't like the freezing of tasks, he said this in one
+of the discussions on LKML (http://lkml.org/lkml/2007/4/27/608):
+
+"RJW:> Why we freeze tasks at all or why we freeze kernel threads?
+
+Linus: In many ways, 'at all'.
+
+I _do_ realize the IO request queue issues, and that we cannot actually do
+s2ram with some devices in the middle of a DMA.  So we want to be able to
+avoid *that*, there's no question about that.  And I suspect that stopping
+user threads and then waiting for a sync is practically one of the easier
+ways to do so.
+
+So in practice, the 'at all' may become a 'why freeze kernel threads?' and
+freezing user threads I don't find really objectionable."
+
+Still, there are kernel threads that may want to be freezable.  For example, if
+a kernel that belongs to a device driver accesses the device directly, it in
+principle needs to know when the device is suspended, so that it doesn't try to
+access it at that time.  However, if the kernel thread is freezable, it will be
+frozen before the driver's .suspend() callback is executed and it will be
+thawed after the driver's .resume() callback has run, so it won't be accessing
+the device while it's suspended.
+
+3. Another reason for freezing tasks is to prevent user space processes from
+realizing that hibernation (or suspend) operation takes place.  Ideally, user
+space processes should not notice that such a system-wide operation has occurred
+and should continue running without any problems after the restore (or resume
+from suspend).  Unfortunately, in the most general case this is quite difficult
+to achieve without the freezing of tasks.  Consider, for example, a process
+that depends on all CPUs being online while it's running.  Since we need to
+disable nonboot CPUs during the hibernation, if this process is not frozen, it
+may notice that the number of CPUs has changed and may start to work incorrectly
+because of that.
+
+V. Are there any problems related to the freezing of tasks?
+
+Yes, there are.
+
+First of all, the freezing of kernel threads may be tricky if they depend one
+on another.  For example, if kernel thread A waits for a completion (in the
+TASK_UNINTERRUPTIBLE state) that needs to be done by freezable kernel thread B
+and B is frozen in the meantime, then A will be blocked until B is thawed, which
+may be undesirable.  That's why kernel threads are not freezable by default.
+
+Second, there are the following two problems related to the freezing of user
+space processes:
+1. Putting processes into an uninterruptible sleep distorts the load average.
+2. Now that we have FUSE, plus the framework for doing device drivers in
+userspace, it gets even more complicated because some userspace processes are
+now doing the sorts of things that kernel threads do
+(https://lists.linux-foundation.org/pipermail/linux-pm/2007-May/012309.html).
+
+The problem 1. seems to be fixable, although it hasn't been fixed so far.  The
+other one is more serious, but it seems that we can work around it by using
+hibernation (and suspend) notifiers (in that case, though, we won't be able to
+avoid the realization by the user space processes that the hibernation is taking
+place).
+
+There are also problems that the freezing of tasks tends to expose, although
+they are not directly related to it.  For example, if request_firmware() is
+called from a device driver's .resume() routine, it will timeout and eventually
+fail, because the user land process that should respond to the request is frozen
+at this point.  So, seemingly, the failure is due to the freezing of tasks.
+Suppose, however, that the firmware file is located on a filesystem accessible
+only through another device that hasn't been resumed yet.  In that case,
+request_firmware() will fail regardless of whether or not the freezing of tasks
+is used.  Consequently, the problem is not really related to the freezing of
+tasks, since it generally exists anyway.  [The solution to this particular
+problem is to keep the firmware in memory after it's loaded for the first time
+and upload if from memory to the device whenever necessary.]
diff --git a/Documentation/power/kernel_threads.txt b/Documentation/power/kernel_threads.txt
deleted file mode 100644
index fb57784..0000000
--- a/Documentation/power/kernel_threads.txt
+++ /dev/null
@@ -1,40 +0,0 @@
-KERNEL THREADS
-
-
-Freezer
-
-Upon entering a suspended state the system will freeze all
-tasks. This is done by delivering pseudosignals. This affects
-kernel threads, too. To successfully freeze a kernel thread
-the thread has to check for the pseudosignal and enter the
-refrigerator. Code to do this looks like this:
-
-	do {
-		hub_events();
-		wait_event_interruptible(khubd_wait, !list_empty(&hub_event_list));
-		try_to_freeze();
-	} while (!signal_pending(current));
-
-from drivers/usb/core/hub.c::hub_thread()
-
-
-The Unfreezable
-
-Some kernel threads however, must not be frozen. The kernel must
-be able to finish pending IO operations and later on be able to
-write the memory image to disk. Kernel threads needed to do IO
-must stay awake. Such threads must mark themselves unfreezable
-like this:
-
-	/*
-	 * This thread doesn't need any user-level access,
-	 * so get rid of all our resources.
-	 */
-	daemonize("usb-storage");
-
-	current->flags |= PF_NOFREEZE;
-
-from drivers/usb/storage/usb.c::usb_stor_control_thread()
-
-Such drivers are themselves responsible for staying quiet during
-the actual snapshotting.
diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt
index 152b510..aea7e92 100644
--- a/Documentation/power/swsusp.txt
+++ b/Documentation/power/swsusp.txt
@@ -140,21 +140,11 @@
 website, and not to the Linux Kernel Mailing List. We are working
 toward merging suspend2 into the mainline kernel.
 
-Q: A kernel thread must voluntarily freeze itself (call 'refrigerator').
-I found some kernel threads that don't do it, and they don't freeze
-so the system can't sleep. Is this a known behavior?
+Q: What is the freezing of tasks and why are we using it?
 
-A: All such kernel threads need to be fixed, one by one. Select the
-place where the thread is safe to be frozen (no kernel semaphores
-should be held at that point and it must be safe to sleep there), and
-add:
-
-       try_to_freeze();
-
-If the thread is needed for writing the image to storage, you should
-instead set the PF_NOFREEZE process flag when creating the thread (and
-be very careful).
-
+A: The freezing of tasks is a mechanism by which user space processes and some
+kernel threads are controlled during hibernation or system-wide suspend (on some
+architectures).  See freezing-of-tasks.txt for details.
 
 Q: What is the difference between "platform" and "shutdown"?
 
diff --git a/arch/i386/kernel/apm.c b/arch/i386/kernel/apm.c
index 4112afe..47001d5 100644
--- a/arch/i386/kernel/apm.c
+++ b/arch/i386/kernel/apm.c
@@ -222,6 +222,7 @@
 #include <linux/capability.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
+#include <linux/freezer.h>
 #include <linux/smp.h>
 #include <linux/dmi.h>
 #include <linux/suspend.h>
@@ -2311,7 +2312,6 @@
 		remove_proc_entry("apm", NULL);
 		return err;
 	}
-	kapmd_task->flags |= PF_NOFREEZE;
 	wake_up_process(kapmd_task);
 
 	if (num_online_cpus() > 1 && !smp ) {
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 7f8b7af..21db8f5 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -667,6 +667,7 @@
 		set_pending_irq(i, cpumask_of_cpu(0));
 	}
 
+	set_freezable();
 	for ( ; ; ) {
 		time_remaining = schedule_timeout_interruptible(time_remaining);
 		try_to_freeze();
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 4503290..06eaa11 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -68,6 +68,7 @@
 #include <linux/loop.h>
 #include <linux/compat.h>
 #include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/writeback.h>
 #include <linux/buffer_head.h>		/* for invalidate_bdev() */
 #include <linux/completion.h>
@@ -600,13 +601,6 @@
 	struct loop_device *lo = data;
 	struct bio *bio;
 
-	/*
-	 * loop can be used in an encrypted device,
-	 * hence, it mustn't be stopped at all
-	 * because it could be indirectly used during suspension
-	 */
-	current->flags |= PF_NOFREEZE;
-
 	set_user_nice(current, -20);
 
 	while (!kthread_should_stop() || lo->lo_bio) {
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 7c294a4..31be33e 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -1593,6 +1593,7 @@
 	long min_sleep_time, residue;
 
 	set_user_nice(current, -20);
+	set_freezable();
 
 	for (;;) {
 		DECLARE_WAITQUEUE(wait, current);
diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c
index 179c7a3..ec116df 100644
--- a/drivers/char/apm-emulation.c
+++ b/drivers/char/apm-emulation.c
@@ -20,6 +20,7 @@
 #include <linux/sched.h>
 #include <linux/pm.h>
 #include <linux/apm-emulation.h>
+#include <linux/freezer.h>
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
@@ -329,13 +330,8 @@
 			/*
 			 * Wait for the suspend/resume to complete.  If there
 			 * are pending acknowledges, we wait here for them.
-			 *
-			 * Note: we need to ensure that the PM subsystem does
-			 * not kick us out of the wait when it suspends the
-			 * threads.
 			 */
 			flags = current->flags;
-			current->flags |= PF_NOFREEZE;
 
 			wait_event(apm_suspend_waitqueue,
 				   as->suspend_state == SUSPEND_DONE);
@@ -365,13 +361,8 @@
 			/*
 			 * Wait for the suspend/resume to complete.  If there
 			 * are pending acknowledges, we wait here for them.
-			 *
-			 * Note: we need to ensure that the PM subsystem does
-			 * not kick us out of the wait when it suspends the
-			 * threads.
 			 */
 			flags = current->flags;
-			current->flags |= PF_NOFREEZE;
 
 			wait_event_interruptible(apm_suspend_waitqueue,
 					 as->suspend_state == SUSPEND_DONE);
@@ -598,7 +589,6 @@
 		kapmd_tsk = NULL;
 		return ret;
 	}
-	kapmd_tsk->flags |= PF_NOFREEZE;
 	wake_up_process(kapmd_tsk);
 
 #ifdef CONFIG_PROC_FS
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index b3ab42e..83c1151 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -679,6 +679,7 @@
 	int poll_mask;
 	struct hvc_struct *hp;
 
+	set_freezable();
 	__set_current_state(TASK_RUNNING);
 	do {
 		poll_mask = 0;
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 7b62230..804875d 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -1906,6 +1906,7 @@
 
 static int edac_kernel_thread(void *arg)
 {
+	set_freezable();
 	while (!kthread_should_stop()) {
 		do_edac_check();
 
diff --git a/drivers/ieee1394/ieee1394_core.c b/drivers/ieee1394/ieee1394_core.c
index 0fc8c6e..ee452595 100644
--- a/drivers/ieee1394/ieee1394_core.c
+++ b/drivers/ieee1394/ieee1394_core.c
@@ -30,6 +30,7 @@
 #include <linux/moduleparam.h>
 #include <linux/bitops.h>
 #include <linux/kdev_t.h>
+#include <linux/freezer.h>
 #include <linux/suspend.h>
 #include <linux/kthread.h>
 #include <linux/preempt.h>
@@ -1128,8 +1129,6 @@
 	struct list_head tmp;
 	int may_schedule;
 
-	current->flags |= PF_NOFREEZE;
-
 	while (!kthread_should_stop()) {
 
 		INIT_LIST_HEAD(&tmp);
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 51a1206..2ffd534 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -1699,6 +1699,7 @@
 	unsigned int g, generation = 0;
 	int i, reset_cycles = 0;
 
+	set_freezable();
 	/* Setup our device-model entries */
 	nodemgr_create_host_dev_files(host);
 
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index bd686a2..20896d5 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -445,6 +445,7 @@
 
 static int gameport_thread(void *nothing)
 {
+	set_freezable();
 	do {
 		gameport_handle_event();
 		wait_event_interruptible(gameport_wait,
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index a8f3bc1..372ca49 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -384,6 +384,7 @@
 
 static int serio_thread(void *nothing)
 {
+	set_freezable();
 	do {
 		serio_handle_event();
 		wait_event_interruptible(serio_wait,
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index f0cbcdb..36f9440 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -292,6 +292,7 @@
 
 	sched_setscheduler(tsk, SCHED_FIFO, &param);
 
+	set_freezable();
 	while (!kthread_should_stop()) {
 		unsigned int x, y, p;
 		long timeout;
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index bd55e6a..f25685b 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -335,6 +335,7 @@
 {
 	struct thermostat* th = arg;
 
+	set_freezable();
 	while(!kthread_should_stop()) {
 		try_to_freeze();
 		msleep_interruptible(2000);
diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index 4fcb245..e18d265 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -92,6 +92,7 @@
 
 	DBG("wf: thread started\n");
 
+	set_freezable();
 	while(!kthread_should_stop()) {
 		if (time_after_eq(jiffies, next)) {
 			wf_notify(WF_EVENT_TICK, NULL);
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 33beaa7..9aefc4a 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -4642,7 +4642,6 @@
 	 * many dirty RAID5 blocks.
 	 */
 
-	current->flags |= PF_NOFREEZE;
 	allow_signal(SIGKILL);
 	while (!kthread_should_stop()) {
 
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index f4e4ca2..b6c7f66 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -523,6 +523,7 @@
 
 	dvb_frontend_init(fe);
 
+	set_freezable();
 	while (1) {
 		up(&fepriv->sem);	    /* is locked when we enter the thread... */
 restart:
diff --git a/drivers/media/video/cx88/cx88-tvaudio.c b/drivers/media/video/cx88/cx88-tvaudio.c
index 259ea08..1cc2d28 100644
--- a/drivers/media/video/cx88/cx88-tvaudio.c
+++ b/drivers/media/video/cx88/cx88-tvaudio.c
@@ -906,6 +906,7 @@
 	u32 mode = 0;
 
 	dprintk("cx88: tvaudio thread started\n");
+	set_freezable();
 	for (;;) {
 		msleep_interruptible(1000);
 		if (kthread_should_stop())
diff --git a/drivers/media/video/msp3400-kthreads.c b/drivers/media/video/msp3400-kthreads.c
index e1821eb..d5ee262 100644
--- a/drivers/media/video/msp3400-kthreads.c
+++ b/drivers/media/video/msp3400-kthreads.c
@@ -23,6 +23,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
+#include <linux/freezer.h>
 #include <linux/videodev.h>
 #include <linux/videodev2.h>
 #include <media/v4l2-common.h>
@@ -468,6 +469,7 @@
 
 
 	v4l_dbg(1, msp_debug, client, "msp3400 daemon started\n");
+	set_freezable();
 	for (;;) {
 		v4l_dbg(2, msp_debug, client, "msp3400 thread: sleep\n");
 		msp_sleep(state, -1);
@@ -646,7 +648,7 @@
 	int val, i, std, count;
 
 	v4l_dbg(1, msp_debug, client, "msp3410 daemon started\n");
-
+	set_freezable();
 	for (;;) {
 		v4l_dbg(2, msp_debug, client, "msp3410 thread: sleep\n");
 		msp_sleep(state,-1);
@@ -940,7 +942,7 @@
 	int val, i;
 
 	v4l_dbg(1, msp_debug, client, "msp34xxg daemon started\n");
-
+	set_freezable();
 	for (;;) {
 		v4l_dbg(2, msp_debug, client, "msp34xxg thread: sleep\n");
 		msp_sleep(state, -1);
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
index c9bf9db..9da338d 100644
--- a/drivers/media/video/tvaudio.c
+++ b/drivers/media/video/tvaudio.c
@@ -271,7 +271,7 @@
 	struct CHIPDESC  *desc = chiplist + chip->type;
 
 	v4l_dbg(1, debug, &chip->c, "%s: thread started\n", chip->c.name);
-
+	set_freezable();
 	for (;;) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (!kthread_should_stop())
diff --git a/drivers/media/video/video-buf-dvb.c b/drivers/media/video/video-buf-dvb.c
index fcc5467..e617925 100644
--- a/drivers/media/video/video-buf-dvb.c
+++ b/drivers/media/video/video-buf-dvb.c
@@ -47,6 +47,7 @@
 	int err;
 
 	dprintk("dvb thread started\n");
+	set_freezable();
 	videobuf_read_start(&dvb->dvbq);
 
 	for (;;) {
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index f7e1d19..3ef4d01 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -573,6 +573,7 @@
 	dprintk(1,"thread started\n");
 
 	mod_timer(&dma_q->timeout, jiffies+BUFFER_TIMEOUT);
+	set_freezable();
 
 	for (;;) {
 		vivi_sleep(dma_q);
diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c
index 38e815a..fdbaa77 100644
--- a/drivers/mfd/ucb1x00-ts.c
+++ b/drivers/mfd/ucb1x00-ts.c
@@ -209,6 +209,7 @@
 	DECLARE_WAITQUEUE(wait, tsk);
 	int valid = 0;
 
+	set_freezable();
 	add_wait_queue(&ts->irq_wait, &wait);
 	while (!kthread_should_stop()) {
 		unsigned int x, y, p;
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index 4fb2089..b53dac8 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -11,6 +11,7 @@
  */
 #include <linux/module.h>
 #include <linux/blkdev.h>
+#include <linux/freezer.h>
 #include <linux/kthread.h>
 
 #include <linux/mmc/card.h>
@@ -44,11 +45,7 @@
 	struct mmc_queue *mq = d;
 	struct request_queue *q = mq->queue;
 
-	/*
-	 * Set iothread to ensure that we aren't put to sleep by
-	 * the process freezing.  We handle suspension ourselves.
-	 */
-	current->flags |= PF_MEMALLOC|PF_NOFREEZE;
+	current->flags |= PF_MEMALLOC;
 
 	down(&mq->thread_sem);
 	do {
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 51bc7e2..ef89780 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -16,6 +16,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/blkdev.h>
 #include <linux/blkpg.h>
+#include <linux/freezer.h>
 #include <linux/spinlock.h>
 #include <linux/hdreg.h>
 #include <linux/init.h>
@@ -80,7 +81,7 @@
 	struct request_queue *rq = tr->blkcore_priv->rq;
 
 	/* we might get involved when memory gets low, so use PF_MEMALLOC */
-	current->flags |= PF_MEMALLOC | PF_NOFREEZE;
+	current->flags |= PF_MEMALLOC;
 
 	spin_lock_irq(rq->queue_lock);
 	while (!kthread_should_stop()) {
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 9ecaf77..ab2174a 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -1346,6 +1346,7 @@
 	ubi_msg("background thread \"%s\" started, PID %d",
 		ubi->bgt_name, current->pid);
 
+	set_freezable();
 	for (;;) {
 		int err;
 
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 1c54908..ee1cc14 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -3086,7 +3086,8 @@
 	struct net_device *dev = data;
 	struct airo_info *ai = dev->priv;
 	int locked;
-	
+
+	set_freezable();
 	while(1) {
 		/* make swsusp happy with our thread */
 		try_to_freeze();
diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c
index 4a59306..9f36624 100644
--- a/drivers/net/wireless/libertas/main.c
+++ b/drivers/net/wireless/libertas/main.c
@@ -613,6 +613,7 @@
 
 	init_waitqueue_entry(&wait, current);
 
+	set_freezable();
 	for (;;) {
 		lbs_deb_thread( "main-thread 111: intcounter=%d "
 		       "currenttxskb=%p dnld_sent=%d\n",
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index 50cad3a..7c93a10 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -651,6 +651,7 @@
 	add_wait_queue(&skt->thread_wait, &wait);
 	complete(&skt->thread_done);
 
+	set_freezable();
 	for (;;) {
 		unsigned long flags;
 		unsigned int events;
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index 3a201b7..03baf1c 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -160,6 +160,7 @@
 {
 	static struct pnp_docking_station_info now;
 	int docked = -1, d = 0;
+	set_freezable();
 	while (!unloading)
 	{
 		int status;
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index d70ddfd..9c5342e 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -40,6 +40,7 @@
 
 #include <linux/err.h>
 #include <linux/blkdev.h>
+#include <linux/freezer.h>
 #include <linux/scatterlist.h>
 
 /* ---------- SCSI Host glue ---------- */
@@ -868,8 +869,6 @@
 {
 	struct sas_ha_struct *sas_ha = _sas_ha;
 
-	current->flags |= PF_NOFREEZE;
-
 	while (1) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		schedule();
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 9adb64a..8a525ab 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -19,6 +19,7 @@
 #include <linux/timer.h>
 #include <linux/string.h>
 #include <linux/kernel.h>
+#include <linux/freezer.h>
 #include <linux/kthread.h>
 #include <linux/interrupt.h>
 #include <linux/blkdev.h>
@@ -1516,8 +1517,6 @@
 {
 	struct Scsi_Host *shost = data;
 
-	current->flags |= PF_NOFREEZE;
-
 	/*
 	 * We use TASK_INTERRUPTIBLE so that the thread is not
 	 * counted against the load average as a running process.
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index 4973e14..8f04665 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -1168,6 +1168,7 @@
 	struct uea_softc *sc = data;
 	int ret = -EAGAIN;
 
+	set_freezable();
 	uea_enters(INS_TO_USBDEV(sc));
 	while (!kthread_should_stop()) {
 		if (ret < 0 || sc->reset)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 50e79010..fd74c50 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2728,6 +2728,7 @@
 
 static int hub_thread(void *__unused)
 {
+	set_freezable();
 	do {
 		hub_events();
 		wait_event_interruptible(khubd_wait,
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index 8712ef9..be7a1bd 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -3434,6 +3434,9 @@
 	allow_signal(SIGKILL);
 	allow_signal(SIGUSR1);
 
+	/* Allow the thread to be frozen */
+	set_freezable();
+
 	/* Arrange for userspace references to be interpreted as kernel
 	 * pointers.  That way we can pass a kernel pointer to a routine
 	 * that expects a __user pointer and it will work okay. */
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index bef8bcd..28842d2 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -311,8 +311,6 @@
 	struct Scsi_Host *host = us_to_host(us);
 	int autopm_rc;
 
-	current->flags |= PF_NOFREEZE;
-
 	for(;;) {
 		US_DEBUGP("*** thread sleeping.\n");
 		if(down_interruptible(&us->sema))
@@ -920,6 +918,7 @@
 	printk(KERN_DEBUG
 		"usb-storage: device found at %d\n", us->pusb_dev->devnum);
 
+	set_freezable();
 	/* Wait for the timeout to expire or for a disconnect */
 	if (delay_use > 0) {
 		printk(KERN_DEBUG "usb-storage: waiting for device "
diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index 08b7ffb..3972aa8 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -812,6 +812,7 @@
 
 static int ps3fbd(void *arg)
 {
+	set_freezable();
 	while (!kthread_should_stop()) {
 		try_to_freeze();
 		set_current_state(TASK_INTERRUPTIBLE);
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index f5c5b76..c633210 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -805,6 +805,7 @@
 	struct w1_master *dev, *n;
 	int have_to_wait = 0;
 
+	set_freezable();
 	while (!kthread_should_stop() || have_to_wait) {
 		have_to_wait = 0;
 
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 8b0cbf4..bd0f2f2 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -849,6 +849,7 @@
 	__u16  netfid;
 	int rc;
 
+	set_freezable();
 	do {
 		if (try_to_freeze()) 
 			continue;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index f4e9266..0a1b8bd 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -363,6 +363,7 @@
 			GFP_KERNEL);
 	}
 
+	set_freezable();
 	while (!kthread_should_stop()) {
 		if (try_to_freeze())
 			continue;
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index 0c82dfc..143c553 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -81,6 +81,7 @@
 
 	set_user_nice(current, 10);
 
+	set_freezable();
 	for (;;) {
 		allow_signal(SIGHUP);
 
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 2680932..9fcdef5 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -25,6 +25,7 @@
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
 #include <linux/mutex.h>
+#include <linux/freezer.h>
 
 #include <linux/sunrpc/types.h>
 #include <linux/sunrpc/stats.h>
@@ -119,6 +120,7 @@
 	complete(&lockd_start_done);
 
 	daemonize("lockd");
+	set_freezable();
 
 	/* Process request with signals blocked, but allow SIGKILL.  */
 	allow_signal(SIGKILL);
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 75f309c..a796be5 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -14,6 +14,7 @@
 #include <linux/sunrpc/svcsock.h>
 #include <linux/nfs_fs.h>
 #include <linux/mutex.h>
+#include <linux/freezer.h>
 
 #include <net/inet_sock.h>
 
@@ -67,6 +68,7 @@
 	daemonize("nfsv4-svc");
 	/* Process request with signals blocked, but allow SIGKILL.  */
 	allow_signal(SIGKILL);
+	set_freezable();
 
 	complete(&nfs_callback_info.started);
 
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index ff55950..5c8192b 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -19,6 +19,7 @@
 #include <linux/slab.h>
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
+#include <linux/freezer.h>
 #include <linux/fs_struct.h>
 
 #include <linux/sunrpc/types.h>
@@ -432,6 +433,7 @@
 	 * dirty pages.
 	 */
 	current->flags |= PF_LESS_THROTTLE;
+	set_freezable();
 
 	/*
 	 * The main request loop
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 06894cf..4528f9a 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -562,6 +562,7 @@
 	bhv_vfs_sync_work_t	*work, *n;
 	LIST_HEAD		(tmp);
 
+	set_freezable();
 	timeleft = xfs_syncd_centisecs * msecs_to_jiffies(10);
 	for (;;) {
 		timeleft = schedule_timeout_interruptible(timeleft);
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index 4631086..2d38b1a 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -1,5 +1,8 @@
 /* Freezer declarations */
 
+#ifndef FREEZER_H_INCLUDED
+#define FREEZER_H_INCLUDED
+
 #include <linux/sched.h>
 
 #ifdef CONFIG_PM
@@ -115,6 +118,14 @@
 	return !!(p->flags & PF_FREEZER_SKIP);
 }
 
+/*
+ * Tell the freezer that the current task should be frozen by it
+ */
+static inline void set_freezable(void)
+{
+	current->flags &= ~PF_NOFREEZE;
+}
+
 #else
 static inline int frozen(struct task_struct *p) { return 0; }
 static inline int freezing(struct task_struct *p) { return 0; }
@@ -130,4 +141,7 @@
 static inline void freezer_do_not_count(void) {}
 static inline void freezer_count(void) {}
 static inline int freezer_should_skip(struct task_struct *p) { return 0; }
+static inline void set_freezable(void) {}
 #endif
+
+#endif	/* FREEZER_H_INCLUDED */
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index b222ce9..a6b4c0c 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -56,12 +56,9 @@
 	sys_chroot(".");
 
 	pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
-	if (pid > 0) {
-		while (pid != sys_wait4(-1, NULL, 0, NULL)) {
-			try_to_freeze();
+	if (pid > 0)
+		while (pid != sys_wait4(-1, NULL, 0, NULL))
 			yield();
-		}
-	}
 
 	/* move initrd to rootfs' /old */
 	sys_fchdir(old_fd);
diff --git a/kernel/audit.c b/kernel/audit.c
index 5ce8851..eb0f916 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -392,6 +392,7 @@
 {
 	struct sk_buff *skb;
 
+	set_freezable();
 	while (!kthread_should_stop()) {
 		skb = skb_dequeue(&audit_skb_queue);
 		wake_up(&audit_backlog_wait);
diff --git a/kernel/exit.c b/kernel/exit.c
index 5762669..e8af8d0 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -31,6 +31,7 @@
 #include <linux/mempolicy.h>
 #include <linux/taskstats_kern.h>
 #include <linux/delayacct.h>
+#include <linux/freezer.h>
 #include <linux/cpuset.h>
 #include <linux/syscalls.h>
 #include <linux/signal.h>
@@ -387,6 +388,11 @@
 	 * they would be locked into memory.
 	 */
 	exit_mm(current);
+	/*
+	 * We don't want to have TIF_FREEZE set if the system-wide hibernation
+	 * or suspend transition begins right now.
+	 */
+	current->flags |= PF_NOFREEZE;
 
 	set_special_pids(1, 1);
 	proc_clear_tty(current);
diff --git a/kernel/fork.c b/kernel/fork.c
index 7c5c588..ba39bdb 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -923,7 +923,7 @@
 {
 	unsigned long new_flags = p->flags;
 
-	new_flags &= ~(PF_SUPERPRIV | PF_NOFREEZE);
+	new_flags &= ~PF_SUPERPRIV;
 	new_flags |= PF_FORKNOEXEC;
 	if (!(clone_flags & CLONE_PTRACE))
 		p->ptrace = 0;
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 55ba82a..ddff332 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -40,6 +40,7 @@
 #include <linux/moduleparam.h>
 #include <linux/percpu.h>
 #include <linux/notifier.h>
+#include <linux/freezer.h>
 #include <linux/cpu.h>
 #include <linux/random.h>
 #include <linux/delay.h>
@@ -518,7 +519,6 @@
 
 	VERBOSE_PRINTK_STRING("rcu_torture_writer task started");
 	set_user_nice(current, 19);
-	current->flags |= PF_NOFREEZE;
 
 	do {
 		schedule_timeout_uninterruptible(1);
@@ -558,7 +558,6 @@
 
 	VERBOSE_PRINTK_STRING("rcu_torture_fakewriter task started");
 	set_user_nice(current, 19);
-	current->flags |= PF_NOFREEZE;
 
 	do {
 		schedule_timeout_uninterruptible(1 + rcu_random(&rand)%10);
@@ -589,7 +588,6 @@
 
 	VERBOSE_PRINTK_STRING("rcu_torture_reader task started");
 	set_user_nice(current, 19);
-	current->flags |= PF_NOFREEZE;
 
 	do {
 		idx = cur_ops->readlock();
diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
index 015fc63..e3055ba 100644
--- a/kernel/rtmutex-tester.c
+++ b/kernel/rtmutex-tester.c
@@ -260,6 +260,7 @@
 	int ret;
 
 	current->flags |= PF_MUTEX_TESTER;
+	set_freezable();
 	allow_signal(SIGHUP);
 
 	for(;;) {
diff --git a/kernel/sched.c b/kernel/sched.c
index 1c80766..cb31fb4 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4912,8 +4912,6 @@
 		struct migration_req *req;
 		struct list_head *head;
 
-		try_to_freeze();
-
 		spin_lock_irq(&rq->lock);
 
 		if (cpu_is_offline(cpu)) {
@@ -5147,7 +5145,6 @@
 		p = kthread_create(migration_thread, hcpu, "migration/%d", cpu);
 		if (IS_ERR(p))
 			return NOTIFY_BAD;
-		p->flags |= PF_NOFREEZE;
 		kthread_bind(p, cpu);
 		/* Must be high prio: stop_machine expects to yield to it. */
 		rq = task_rq_lock(p, &flags);
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 8de2677..0f546dd 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -14,6 +14,7 @@
 #include <linux/notifier.h>
 #include <linux/percpu.h>
 #include <linux/cpu.h>
+#include <linux/freezer.h>
 #include <linux/kthread.h>
 #include <linux/rcupdate.h>
 #include <linux/smp.h>
@@ -488,8 +489,6 @@
 
 static int ksoftirqd(void * __bind_cpu)
 {
-	current->flags |= PF_NOFREEZE;
-
 	set_current_state(TASK_INTERRUPTIBLE);
 
 	while (!kthread_should_stop()) {
diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index 0131e29..708d488 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -10,6 +10,7 @@
 #include <linux/cpu.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/freezer.h>
 #include <linux/kthread.h>
 #include <linux/notifier.h>
 #include <linux/module.h>
@@ -116,7 +117,6 @@
 	struct sched_param param = { .sched_priority = MAX_RT_PRIO-1 };
 
 	sched_setscheduler(current, SCHED_FIFO, &param);
-	current->flags |= PF_NOFREEZE;
 
 	/* initialize timestamp */
 	touch_softlockup_watchdog();
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index d7d3fa3..1935302 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -282,8 +282,8 @@
 	struct cpu_workqueue_struct *cwq = __cwq;
 	DEFINE_WAIT(wait);
 
-	if (!cwq->wq->freezeable)
-		current->flags |= PF_NOFREEZE;
+	if (cwq->wq->freezeable)
+		set_freezable();
 
 	set_user_nice(current, -5);
 
diff --git a/mm/pdflush.c b/mm/pdflush.c
index 8ce0900..8f6ee07 100644
--- a/mm/pdflush.c
+++ b/mm/pdflush.c
@@ -92,6 +92,7 @@
 static int __pdflush(struct pdflush_work *my_work)
 {
 	current->flags |= PF_FLUSHER | PF_SWAPWRITE;
+	set_freezable();
 	my_work->fn = NULL;
 	my_work->who = current;
 	INIT_LIST_HEAD(&my_work->list);
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 2225b7c..d419e10 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1421,6 +1421,7 @@
 	 * trying to free the first piece of memory in the first place).
 	 */
 	tsk->flags |= PF_MEMALLOC | PF_SWAPWRITE | PF_KSWAPD;
+	set_freezable();
 
 	order = 0;
 	for ( ; ; ) {
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 1c8f4a0..1f78c3e 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -36,6 +36,7 @@
 #include <linux/signal.h>
 #include <linux/init.h>
 #include <linux/wait.h>
+#include <linux/freezer.h>
 #include <linux/errno.h>
 #include <linux/net.h>
 #include <net/sock.h>
@@ -474,7 +475,6 @@
 
 	daemonize("kbnepd %s", dev->name);
 	set_user_nice(current, -15);
-	current->flags |= PF_NOFREEZE;
 
 	init_waitqueue_entry(&wait, current);
 	add_wait_queue(sk->sk_sleep, &wait);
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index 66bef1c..ca60a451 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -29,6 +29,7 @@
 #include <linux/slab.h>
 #include <linux/poll.h>
 #include <linux/fcntl.h>
+#include <linux/freezer.h>
 #include <linux/skbuff.h>
 #include <linux/socket.h>
 #include <linux/ioctl.h>
@@ -287,7 +288,6 @@
 
 	daemonize("kcmtpd_ctr_%d", session->num);
 	set_user_nice(current, -15);
-	current->flags |= PF_NOFREEZE;
 
 	init_waitqueue_entry(&wait, current);
 	add_wait_queue(sk->sk_sleep, &wait);
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 450eb02..64d89ca 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -28,6 +28,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/poll.h>
+#include <linux/freezer.h>
 #include <linux/fcntl.h>
 #include <linux/skbuff.h>
 #include <linux/socket.h>
@@ -547,7 +548,6 @@
 
 	daemonize("khidpd_%04x%04x", vendor, product);
 	set_user_nice(current, -15);
-	current->flags |= PF_NOFREEZE;
 
 	init_waitqueue_entry(&ctrl_wait, current);
 	init_waitqueue_entry(&intr_wait, current);
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 52e04df..bb722077 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -33,6 +33,7 @@
 #include <linux/sched.h>
 #include <linux/signal.h>
 #include <linux/init.h>
+#include <linux/freezer.h>
 #include <linux/wait.h>
 #include <linux/device.h>
 #include <linux/net.h>
@@ -1940,7 +1941,6 @@
 
 	daemonize("krfcommd");
 	set_user_nice(current, -10);
-	current->flags |= PF_NOFREEZE;
 
 	BT_DBG("");
 
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 7521533..bca787f 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -3465,6 +3465,8 @@
 
 	set_current_state(TASK_INTERRUPTIBLE);
 
+	set_freezable();
+
 	while (!kthread_should_stop()) {
 		pkt_dev = next_to_run(t);