From 9a154d9d95b7b9845938242f5c62505b3cab5bcd Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Wed, 6 Dec 2006 20:34:12 -0800
Subject: [PATCH] swsusp: add resume_offset command line parameter

Add the kernel command line parameter "resume_offset=" allowing us to specify
the offset, in <PAGE_SIZE> units, from the beginning of the partition pointed
to by the "resume=" parameter at which the swap header is located.

This offset can be determined, for example, by an application using the FIBMAP
ioctl to obtain the swap header's block number for given file.

[akpm@osdl.org: we don't know what type sector_t is]
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 kernel/power/disk.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'kernel/power/disk.c')

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index b1fb7866b0b..d79feeb4545 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -27,6 +27,7 @@
 static int noresume = 0;
 char resume_file[256] = CONFIG_PM_STD_PARTITION;
 dev_t swsusp_resume_device;
+sector_t swsusp_resume_block;
 
 /**
  *	power_down - Shut machine down for hibernate.
@@ -423,6 +424,19 @@ static int __init resume_setup(char *str)
 	return 1;
 }
 
+static int __init resume_offset_setup(char *str)
+{
+	unsigned long long offset;
+
+	if (noresume)
+		return 1;
+
+	if (sscanf(str, "%llu", &offset) == 1)
+		swsusp_resume_block = offset;
+
+	return 1;
+}
+
 static int __init noresume_setup(char *str)
 {
 	noresume = 1;
@@ -430,4 +444,5 @@ static int __init noresume_setup(char *str)
 }
 
 __setup("noresume", noresume_setup);
+__setup("resume_offset=", resume_offset_setup);
 __setup("resume=", resume_setup);
-- 
cgit v1.2.3-70-g09d2


From 8a05aac2631aa0e6494d9dc990f8c68ed8b8fde7 Mon Sep 17 00:00:00 2001
From: Stefan Seyfried <seife@suse.de>
Date: Wed, 6 Dec 2006 20:34:21 -0800
Subject: [PATCH] swsusp: fix platform mode

At some point after 2.6.13, in-kernel software suspend got "incomplete" for
the so-called "platform" mode.  pm_ops->prepare() is never called.  A
visible sign of this is the "moon" light on thinkpads not flashing during
suspend.  Fix by readding the pm_ops->prepare call during suspend.

Signed-off-by: Stefan Seyfried <seife@suse.de>
Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 kernel/power/disk.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'kernel/power/disk.c')

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index d79feeb4545..f5079231383 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -29,6 +29,22 @@ char resume_file[256] = CONFIG_PM_STD_PARTITION;
 dev_t swsusp_resume_device;
 sector_t swsusp_resume_block;
 
+/**
+ *	platform_prepare - prepare the machine for hibernation using the
+ *	platform driver if so configured and return an error code if it fails
+ */
+
+static inline int platform_prepare(void)
+{
+	int error = 0;
+
+	if (pm_disk_mode == PM_DISK_PLATFORM) {
+		if (pm_ops && pm_ops->prepare)
+			error = pm_ops->prepare(PM_SUSPEND_DISK);
+	}
+	return error;
+}
+
 /**
  *	power_down - Shut machine down for hibernate.
  *	@mode:		Suspend-to-disk mode
@@ -91,9 +107,15 @@ static int prepare_processes(void)
 		goto thaw;
 	}
 
+	error = platform_prepare();
+	if (error)
+		goto thaw;
+
 	/* Free memory before shutting down devices. */
 	if (!(error = swsusp_shrink_memory()))
 		return 0;
+
+	platform_finish();
 thaw:
 	thaw_processes();
 enable_cpus:
-- 
cgit v1.2.3-70-g09d2


From 7dfb71030f7636a0d65200158113c37764552f93 Mon Sep 17 00:00:00 2001
From: Nigel Cunningham <ncunningham@linuxmail.org>
Date: Wed, 6 Dec 2006 20:34:23 -0800
Subject: [PATCH] Add include/linux/freezer.h and move definitions from sched.h

Move process freezing functions from include/linux/sched.h to freezer.h, so
that modifications to the freezer or the kernel configuration don't require
recompiling just about everything.

[akpm@osdl.org: fix ueagle driver]
Signed-off-by: Nigel Cunningham <nigel@suspend2.net>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 arch/arm/kernel/signal.c                  |  1 +
 arch/avr32/kernel/signal.c                |  2 +-
 arch/frv/kernel/signal.c                  |  2 +-
 arch/h8300/kernel/signal.c                |  2 +-
 arch/i386/kernel/io_apic.c                |  1 +
 arch/m32r/kernel/signal.c                 |  2 +-
 arch/powerpc/kernel/signal_32.c           |  2 +-
 arch/sh/kernel/signal.c                   |  1 +
 arch/sh64/kernel/signal.c                 |  2 +-
 drivers/block/pktcdvd.c                   |  2 +-
 drivers/char/hvc_console.c                |  1 +
 drivers/edac/edac_mc.c                    |  1 +
 drivers/ieee1394/nodemgr.c                |  1 +
 drivers/input/gameport/gameport.c         |  1 +
 drivers/input/serio/serio.c               |  1 +
 drivers/macintosh/therm_adt746x.c         |  1 +
 drivers/macintosh/via-pmu.c               |  2 +-
 drivers/macintosh/windfarm_core.c         |  1 +
 drivers/md/md.c                           |  2 +-
 drivers/media/dvb/dvb-core/dvb_frontend.c |  2 +-
 drivers/media/video/msp3400-driver.c      |  2 +-
 drivers/media/video/tvaudio.c             |  1 +
 drivers/media/video/video-buf-dvb.c       |  2 +-
 drivers/media/video/vivi.c                |  1 +
 drivers/mfd/ucb1x00-ts.c                  |  2 +-
 drivers/net/irda/stir4200.c               |  1 +
 drivers/net/wireless/airo.c               |  1 +
 drivers/pcmcia/cs.c                       |  1 +
 drivers/pnp/pnpbios/core.c                |  1 +
 drivers/usb/atm/ueagle-atm.c              |  2 +
 drivers/usb/core/hub.c                    |  1 +
 drivers/usb/gadget/file_storage.c         |  2 +-
 drivers/usb/storage/usb.c                 |  2 +-
 drivers/w1/w1.c                           |  1 +
 fs/afs/kafsasyncd.c                       |  1 +
 fs/afs/kafstimod.c                        |  1 +
 fs/cifs/cifsfs.c                          |  1 +
 fs/cifs/connect.c                         |  1 +
 fs/jbd/journal.c                          |  2 +-
 fs/jbd2/journal.c                         |  2 +-
 fs/jffs/intrep.c                          |  1 +
 fs/jffs2/background.c                     |  1 +
 fs/jfs/jfs_logmgr.c                       |  2 +-
 fs/jfs/jfs_txnmgr.c                       |  2 +-
 fs/lockd/clntproc.c                       |  1 +
 fs/xfs/linux-2.6/xfs_buf.c                |  1 +
 fs/xfs/linux-2.6/xfs_super.c              |  1 +
 include/linux/freezer.h                   | 84 +++++++++++++++++++++++++++++++
 include/linux/sched.h                     | 81 -----------------------------
 init/do_mounts_initrd.c                   |  1 +
 kernel/audit.c                            |  1 +
 kernel/power/disk.c                       |  1 +
 kernel/power/main.c                       |  1 +
 kernel/power/process.c                    |  1 +
 kernel/power/user.c                       |  1 +
 kernel/rtmutex-tester.c                   |  1 +
 kernel/sched.c                            |  2 +-
 kernel/signal.c                           |  1 +
 mm/pdflush.c                              |  1 +
 mm/vmscan.c                               |  1 +
 net/rxrpc/krxiod.c                        |  1 +
 net/rxrpc/krxsecd.c                       |  1 +
 net/rxrpc/krxtimod.c                      |  1 +
 net/sunrpc/svcsock.c                      |  1 +
 64 files changed, 147 insertions(+), 101 deletions(-)
 create mode 100644 include/linux/freezer.h

(limited to 'kernel/power/disk.c')

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 48cf7fffddf..f38a60a03b8 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -11,6 +11,7 @@
 #include <linux/signal.h>
 #include <linux/ptrace.h>
 #include <linux/personality.h>
+#include <linux/freezer.h>
 
 #include <asm/cacheflush.h>
 #include <asm/ucontext.h>
diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c
index 33096651c24..0ec14854a20 100644
--- a/arch/avr32/kernel/signal.c
+++ b/arch/avr32/kernel/signal.c
@@ -15,7 +15,7 @@
 #include <linux/errno.h>
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 
 #include <asm/uaccess.h>
 #include <asm/ucontext.h>
diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c
index b8a5882b862..85baeae9666 100644
--- a/arch/frv/kernel/signal.c
+++ b/arch/frv/kernel/signal.c
@@ -21,7 +21,7 @@
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/personality.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
 #include <asm/cacheflush.h>
diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c
index 7787f70a05b..02955604d76 100644
--- a/arch/h8300/kernel/signal.c
+++ b/arch/h8300/kernel/signal.c
@@ -38,7 +38,7 @@
 #include <linux/personality.h>
 #include <linux/tty.h>
 #include <linux/binfmts.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 
 #include <asm/setup.h>
 #include <asm/uaccess.h>
diff --git a/arch/i386/kernel/io_apic.c b/arch/i386/kernel/io_apic.c
index 3b7a63e0ed1..44c5a3206b2 100644
--- a/arch/i386/kernel/io_apic.c
+++ b/arch/i386/kernel/io_apic.c
@@ -34,6 +34,7 @@
 #include <linux/pci.h>
 #include <linux/msi.h>
 #include <linux/htirq.h>
+#include <linux/freezer.h>
 
 #include <asm/io.h>
 #include <asm/smp.h>
diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index b60cea4aeba..092ea86bb07 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -21,7 +21,7 @@
 #include <linux/unistd.h>
 #include <linux/stddef.h>
 #include <linux/personality.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <asm/cacheflush.h>
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 320353f0926..e4ebe1a6228 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -36,7 +36,7 @@
 #include <linux/stddef.h>
 #include <linux/tty.h>
 #include <linux/binfmts.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #endif
 
 #include <asm/uaccess.h>
diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c
index 50d7c4993be..bb1c480a59c 100644
--- a/arch/sh/kernel/signal.c
+++ b/arch/sh/kernel/signal.c
@@ -23,6 +23,7 @@
 #include <linux/elf.h>
 #include <linux/personality.h>
 #include <linux/binfmts.h>
+#include <linux/freezer.h>
 
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
diff --git a/arch/sh64/kernel/signal.c b/arch/sh64/kernel/signal.c
index 9e2ffc45c0e..1666d3efb52 100644
--- a/arch/sh64/kernel/signal.c
+++ b/arch/sh64/kernel/signal.c
@@ -22,7 +22,7 @@
 #include <linux/errno.h>
 #include <linux/wait.h>
 #include <linux/personality.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/ptrace.h>
 #include <linux/unistd.h>
 #include <linux/stddef.h>
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index f2904f67af4..e45eaa26411 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -54,7 +54,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/miscdevice.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/mutex.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_ioctl.h>
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index 9902ffad3b1..cc2cd46bedc 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -38,6 +38,7 @@
 #include <linux/sched.h>
 #include <linux/spinlock.h>
 #include <linux/delay.h>
+#include <linux/freezer.h>
 
 #include <asm/uaccess.h>
 
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 75e9e38330f..1b4fc922180 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -28,6 +28,7 @@
 #include <linux/sysdev.h>
 #include <linux/ctype.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 #include <asm/uaccess.h>
 #include <asm/page.h>
 #include <asm/edac.h>
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 8e7b83f8448..e829c9336b3 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -15,6 +15,7 @@
 #include <linux/delay.h>
 #include <linux/kthread.h>
 #include <linux/moduleparam.h>
+#include <linux/freezer.h>
 #include <asm/atomic.h>
 
 #include "csr.h"
diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index a0af97efe6a..79dfb4b25c9 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -23,6 +23,7 @@
 #include <linux/kthread.h>
 #include <linux/sched.h>	/* HZ */
 #include <linux/mutex.h>
+#include <linux/freezer.h>
 
 /*#include <asm/io.h>*/
 
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 211943f85cb..5f1d4032fd5 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -35,6 +35,7 @@
 #include <linux/slab.h>
 #include <linux/kthread.h>
 #include <linux/mutex.h>
+#include <linux/freezer.h>
 
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
 MODULE_DESCRIPTION("Serio abstraction core");
diff --git a/drivers/macintosh/therm_adt746x.c b/drivers/macintosh/therm_adt746x.c
index 13b953ae8eb..3d3bf1643e7 100644
--- a/drivers/macintosh/therm_adt746x.c
+++ b/drivers/macintosh/therm_adt746x.c
@@ -24,6 +24,7 @@
 #include <linux/suspend.h>
 #include <linux/kthread.h>
 #include <linux/moduleparam.h>
+#include <linux/freezer.h>
 
 #include <asm/prom.h>
 #include <asm/machdep.h>
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index e63ea1c1f3c..c8558d4ed50 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -42,7 +42,7 @@
 #include <linux/interrupt.h>
 #include <linux/device.h>
 #include <linux/sysdev.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/syscalls.h>
 #include <linux/cpu.h>
 #include <asm/prom.h>
diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index ab3faa702d5..e947af982f9 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -34,6 +34,7 @@
 #include <linux/device.h>
 #include <linux/platform_device.h>
 #include <linux/mutex.h>
+#include <linux/freezer.h>
 
 #include <asm/prom.h>
 
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 8cbf9c9df1c..6c4345bde07 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -39,10 +39,10 @@
 #include <linux/raid/bitmap.h>
 #include <linux/sysctl.h>
 #include <linux/buffer_head.h> /* for invalidate_bdev */
-#include <linux/suspend.h>
 #include <linux/poll.h>
 #include <linux/mutex.h>
 #include <linux/ctype.h>
+#include <linux/freezer.h>
 
 #include <linux/init.h>
 
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index a2ab2eebfc6..e85972222ab 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -34,7 +34,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/list.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/jiffies.h>
 #include <asm/processor.h>
 
diff --git a/drivers/media/video/msp3400-driver.c b/drivers/media/video/msp3400-driver.c
index cf43df3fe70..e1b56dc13c3 100644
--- a/drivers/media/video/msp3400-driver.c
+++ b/drivers/media/video/msp3400-driver.c
@@ -56,7 +56,7 @@
 #include <media/tvaudio.h>
 #include <media/msp3400.h>
 #include <linux/kthread.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include "msp3400-driver.h"
 
 /* ---------------------------------------------------------------------- */
diff --git a/drivers/media/video/tvaudio.c b/drivers/media/video/tvaudio.c
index fcaef4bf828..d506dfaa45a 100644
--- a/drivers/media/video/tvaudio.c
+++ b/drivers/media/video/tvaudio.c
@@ -29,6 +29,7 @@
 #include <linux/init.h>
 #include <linux/smp_lock.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 
 #include <media/tvaudio.h>
 #include <media/v4l2-common.h>
diff --git a/drivers/media/video/video-buf-dvb.c b/drivers/media/video/video-buf-dvb.c
index f53edf1923b..fcc5467e763 100644
--- a/drivers/media/video/video-buf-dvb.c
+++ b/drivers/media/video/video-buf-dvb.c
@@ -20,7 +20,7 @@
 #include <linux/fs.h>
 #include <linux/kthread.h>
 #include <linux/file.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 
 #include <media/video-buf.h>
 #include <media/video-buf-dvb.h>
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c
index 3c8dc72dc8e..9986de5cb3d 100644
--- a/drivers/media/video/vivi.c
+++ b/drivers/media/video/vivi.c
@@ -36,6 +36,7 @@
 #include <media/v4l2-common.h>
 #include <linux/kthread.h>
 #include <linux/highmem.h>
+#include <linux/freezer.h>
 
 /* Wake up at about 30 fps */
 #define WAKE_NUMERATOR 30
diff --git a/drivers/mfd/ucb1x00-ts.c b/drivers/mfd/ucb1x00-ts.c
index 82938ad6ddb..ce1a4810821 100644
--- a/drivers/mfd/ucb1x00-ts.c
+++ b/drivers/mfd/ucb1x00-ts.c
@@ -28,7 +28,7 @@
 #include <linux/string.h>
 #include <linux/input.h>
 #include <linux/device.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/slab.h>
 #include <linux/kthread.h>
 
diff --git a/drivers/net/irda/stir4200.c b/drivers/net/irda/stir4200.c
index 3b4c4787593..c14a74634fd 100644
--- a/drivers/net/irda/stir4200.c
+++ b/drivers/net/irda/stir4200.c
@@ -50,6 +50,7 @@
 #include <linux/usb.h>
 #include <linux/crc32.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 #include <net/irda/irda.h>
 #include <net/irda/irlap.h>
 #include <net/irda/irda_device.h>
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index efcdaf1c5f7..44a22701da9 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -49,6 +49,7 @@
 #include <asm/uaccess.h>
 #include <net/ieee80211.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 
 #include "airo.h"
 
diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c
index f9cd831a3f3..606a4674033 100644
--- a/drivers/pcmcia/cs.c
+++ b/drivers/pcmcia/cs.c
@@ -29,6 +29,7 @@
 #include <linux/pci.h>
 #include <linux/device.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 #include <asm/system.h>
 #include <asm/irq.h>
 
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index 81a6c83d89a..81186f479a3 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -61,6 +61,7 @@
 #include <linux/dmi.h>
 #include <linux/delay.h>
 #include <linux/acpi.h>
+#include <linux/freezer.h>
 
 #include <asm/page.h>
 #include <asm/desc.h>
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index f2d196fa1e8..dae4ef1e8fe 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -64,6 +64,8 @@
 #include <linux/kthread.h>
 #include <linux/version.h>
 #include <linux/mutex.h>
+#include <linux/freezer.h>
+
 #include <asm/unaligned.h>
 
 #include "usbatm.h"
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 77c05be5241..2651c2e2a89 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -22,6 +22,7 @@
 #include <linux/usbdevice_fs.h>
 #include <linux/kthread.h>
 #include <linux/mutex.h>
+#include <linux/freezer.h>
 
 #include <asm/semaphore.h>
 #include <asm/uaccess.h>
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index 8b975d15538..c98316ce838 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -250,7 +250,7 @@
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/string.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/utsname.h>
 
 #include <linux/usb_ch9.h>
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index b401084b3d2..70644506651 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -49,7 +49,7 @@
 
 #include <linux/sched.h>
 #include <linux/errno.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index de3e9791f80..63c07243993 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -31,6 +31,7 @@
 #include <linux/slab.h>
 #include <linux/sched.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 
 #include <asm/atomic.h>
 
diff --git a/fs/afs/kafsasyncd.c b/fs/afs/kafsasyncd.c
index f09a794f248..615df2407cb 100644
--- a/fs/afs/kafsasyncd.c
+++ b/fs/afs/kafsasyncd.c
@@ -20,6 +20,7 @@
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/completion.h>
+#include <linux/freezer.h>
 #include "cell.h"
 #include "server.h"
 #include "volume.h"
diff --git a/fs/afs/kafstimod.c b/fs/afs/kafstimod.c
index 65bc05ab818..694344e4d3c 100644
--- a/fs/afs/kafstimod.c
+++ b/fs/afs/kafstimod.c
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/completion.h>
+#include <linux/freezer.h>
 #include "cell.h"
 #include "volume.h"
 #include "kafstimod.h"
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index e6b5866e500..71bc87a37fc 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -34,6 +34,7 @@
 #include <linux/mempool.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 #include "cifsfs.h"
 #include "cifspdu.h"
 #define DECLARE_GLOBALS_HERE
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 71f77914ce9..2caca06b4ba 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -31,6 +31,7 @@
 #include <linux/delay.h>
 #include <linux/completion.h>
 #include <linux/pagevec.h>
+#include <linux/freezer.h>
 #include <asm/uaccess.h>
 #include <asm/processor.h>
 #include "cifspdu.h"
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index a8774bed20b..10fff944393 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -31,7 +31,7 @@
 #include <linux/smp_lock.h>
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/pagemap.h>
 #include <linux/kthread.h>
 #include <linux/poison.h>
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 50356019ae3..44fc32bfd7f 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -31,7 +31,7 @@
 #include <linux/smp_lock.h>
 #include <linux/init.h>
 #include <linux/mm.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/pagemap.h>
 #include <linux/kthread.h>
 #include <linux/poison.h>
diff --git a/fs/jffs/intrep.c b/fs/jffs/intrep.c
index 4a543e11497..478a74e2e9d 100644
--- a/fs/jffs/intrep.c
+++ b/fs/jffs/intrep.c
@@ -66,6 +66,7 @@
 #include <linux/smp_lock.h>
 #include <linux/time.h>
 #include <linux/ctype.h>
+#include <linux/freezer.h>
 
 #include "intrep.h"
 #include "jffs_fm.h"
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index ff2a872e80e..6eb3daebd56 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -16,6 +16,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/completion.h>
 #include <linux/sched.h>
+#include <linux/freezer.h>
 #include "nodelist.h"
 
 
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index b89c9aba046..5065baa530b 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -67,7 +67,7 @@
 #include <linux/kthread.h>
 #include <linux/buffer_head.h>		/* for sync_blockdev() */
 #include <linux/bio.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/delay.h>
 #include <linux/mutex.h>
 #include "jfs_incore.h"
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index 81f6f04af19..d558e51b0df 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -46,7 +46,7 @@
 #include <linux/vmalloc.h>
 #include <linux/smp_lock.h>
 #include <linux/completion.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/kthread.h>
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 3d84f600b63..50643b6a555 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -13,6 +13,7 @@
 #include <linux/nfs_fs.h>
 #include <linux/utsname.h>
 #include <linux/smp_lock.h>
+#include <linux/freezer.h>
 #include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/svc.h>
 #include <linux/lockd/lockd.h>
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index eef4a0ba11e..b971237c5a9 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -32,6 +32,7 @@
 #include <linux/kthread.h>
 #include <linux/migrate.h>
 #include <linux/backing-dev.h>
+#include <linux/freezer.h>
 
 STATIC kmem_zone_t *xfs_buf_zone;
 STATIC kmem_shaker_t xfs_buf_shake;
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index de05abbbe7f..b93265b7c79 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -56,6 +56,7 @@
 #include <linux/mempool.h>
 #include <linux/writeback.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 
 STATIC struct quotactl_ops xfs_quotactl_operations;
 STATIC struct super_operations xfs_super_operations;
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
new file mode 100644
index 00000000000..266373f7444
--- /dev/null
+++ b/include/linux/freezer.h
@@ -0,0 +1,84 @@
+/* Freezer declarations */
+
+#ifdef CONFIG_PM
+/*
+ * Check if a process has been frozen
+ */
+static inline int frozen(struct task_struct *p)
+{
+	return p->flags & PF_FROZEN;
+}
+
+/*
+ * Check if there is a request to freeze a process
+ */
+static inline int freezing(struct task_struct *p)
+{
+	return p->flags & PF_FREEZE;
+}
+
+/*
+ * Request that a process be frozen
+ * FIXME: SMP problem. We may not modify other process' flags!
+ */
+static inline void freeze(struct task_struct *p)
+{
+	p->flags |= PF_FREEZE;
+}
+
+/*
+ * Sometimes we may need to cancel the previous 'freeze' request
+ */
+static inline void do_not_freeze(struct task_struct *p)
+{
+	p->flags &= ~PF_FREEZE;
+}
+
+/*
+ * Wake up a frozen process
+ */
+static inline int thaw_process(struct task_struct *p)
+{
+	if (frozen(p)) {
+		p->flags &= ~PF_FROZEN;
+		wake_up_process(p);
+		return 1;
+	}
+	return 0;
+}
+
+/*
+ * freezing is complete, mark process as frozen
+ */
+static inline void frozen_process(struct task_struct *p)
+{
+	p->flags = (p->flags & ~PF_FREEZE) | PF_FROZEN;
+}
+
+extern void refrigerator(void);
+extern int freeze_processes(void);
+extern void thaw_processes(void);
+
+static inline int try_to_freeze(void)
+{
+	if (freezing(current)) {
+		refrigerator();
+		return 1;
+	} else
+		return 0;
+}
+#else
+static inline int frozen(struct task_struct *p) { return 0; }
+static inline int freezing(struct task_struct *p) { return 0; }
+static inline void freeze(struct task_struct *p) { BUG(); }
+static inline int thaw_process(struct task_struct *p) { return 1; }
+static inline void frozen_process(struct task_struct *p) { BUG(); }
+
+static inline void refrigerator(void) {}
+static inline int freeze_processes(void) { BUG(); return 0; }
+static inline void thaw_processes(void) {}
+
+static inline int try_to_freeze(void) { return 0; }
+
+
+#endif
diff --git a/include/linux/sched.h b/include/linux/sched.h
index acfd2e15c5f..837a012f573 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1618,87 +1618,6 @@ extern int sched_create_sysfs_power_savings_entries(struct sysdev_class *cls);
 
 extern void normalize_rt_tasks(void);
 
-#ifdef CONFIG_PM
-/*
- * Check if a process has been frozen
- */
-static inline int frozen(struct task_struct *p)
-{
-	return p->flags & PF_FROZEN;
-}
-
-/*
- * Check if there is a request to freeze a process
- */
-static inline int freezing(struct task_struct *p)
-{
-	return p->flags & PF_FREEZE;
-}
-
-/*
- * Request that a process be frozen
- * FIXME: SMP problem. We may not modify other process' flags!
- */
-static inline void freeze(struct task_struct *p)
-{
-	p->flags |= PF_FREEZE;
-}
-
-/*
- * Sometimes we may need to cancel the previous 'freeze' request
- */
-static inline void do_not_freeze(struct task_struct *p)
-{
-	p->flags &= ~PF_FREEZE;
-}
-
-/*
- * Wake up a frozen process
- */
-static inline int thaw_process(struct task_struct *p)
-{
-	if (frozen(p)) {
-		p->flags &= ~PF_FROZEN;
-		wake_up_process(p);
-		return 1;
-	}
-	return 0;
-}
-
-/*
- * freezing is complete, mark process as frozen
- */
-static inline void frozen_process(struct task_struct *p)
-{
-	p->flags = (p->flags & ~PF_FREEZE) | PF_FROZEN;
-}
-
-extern void refrigerator(void);
-extern int freeze_processes(void);
-extern void thaw_processes(void);
-
-static inline int try_to_freeze(void)
-{
-	if (freezing(current)) {
-		refrigerator();
-		return 1;
-	} else
-		return 0;
-}
-#else
-static inline int frozen(struct task_struct *p) { return 0; }
-static inline int freezing(struct task_struct *p) { return 0; }
-static inline void freeze(struct task_struct *p) { BUG(); }
-static inline int thaw_process(struct task_struct *p) { return 1; }
-static inline void frozen_process(struct task_struct *p) { BUG(); }
-
-static inline void refrigerator(void) {}
-static inline int freeze_processes(void) { BUG(); return 0; }
-static inline void thaw_processes(void) {}
-
-static inline int try_to_freeze(void) { return 0; }
-
-#endif /* CONFIG_PM */
 #endif /* __KERNEL__ */
 
 #endif
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index 919a80cb322..2cfd7cb36e7 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -6,6 +6,7 @@
 #include <linux/romfs_fs.h>
 #include <linux/initrd.h>
 #include <linux/sched.h>
+#include <linux/freezer.h>
 
 #include "do_mounts.h"
 
diff --git a/kernel/audit.c b/kernel/audit.c
index 98106f6078b..d9b690ac684 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -57,6 +57,7 @@
 #include <linux/netlink.h>
 #include <linux/selinux.h>
 #include <linux/inotify.h>
+#include <linux/freezer.h>
 
 #include "audit.h"
 
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index f5079231383..53b3b57c022 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -20,6 +20,7 @@
 #include <linux/pm.h>
 #include <linux/console.h>
 #include <linux/cpu.h>
+#include <linux/freezer.h>
 
 #include "power.h"
 
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 873228c71da..6096c71b182 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -18,6 +18,7 @@
 #include <linux/console.h>
 #include <linux/cpu.h>
 #include <linux/resume-trace.h>
+#include <linux/freezer.h>
 
 #include "power.h"
 
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 72e72d2c61e..29be608e834 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -13,6 +13,7 @@
 #include <linux/suspend.h>
 #include <linux/module.h>
 #include <linux/syscalls.h>
+#include <linux/freezer.h>
 
 /* 
  * Timeout for stopping processes
diff --git a/kernel/power/user.c b/kernel/power/user.c
index a63b25c63b4..26c66941c00 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -22,6 +22,7 @@
 #include <linux/fs.h>
 #include <linux/console.h>
 #include <linux/cpu.h>
+#include <linux/freezer.h>
 
 #include <asm/uaccess.h>
 
diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
index 6dcea9dd8c9..015fc633c96 100644
--- a/kernel/rtmutex-tester.c
+++ b/kernel/rtmutex-tester.c
@@ -13,6 +13,7 @@
 #include <linux/spinlock.h>
 #include <linux/sysdev.h>
 #include <linux/timer.h>
+#include <linux/freezer.h>
 
 #include "rtmutex.h"
 
diff --git a/kernel/sched.c b/kernel/sched.c
index 3399701c680..12fdbef1d9b 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -34,7 +34,7 @@
 #include <linux/security.h>
 #include <linux/notifier.h>
 #include <linux/profile.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
 #include <linux/vmalloc.h>
 #include <linux/blkdev.h>
 #include <linux/delay.h>
diff --git a/kernel/signal.c b/kernel/signal.c
index 8e19d278548..bc972d7e631 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -23,6 +23,7 @@
 #include <linux/ptrace.h>
 #include <linux/signal.h>
 #include <linux/capability.h>
+#include <linux/freezer.h>
 #include <asm/param.h>
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
diff --git a/mm/pdflush.c b/mm/pdflush.c
index b02102feeb4..8ce0900dc95 100644
--- a/mm/pdflush.c
+++ b/mm/pdflush.c
@@ -21,6 +21,7 @@
 #include <linux/writeback.h>	// Prototypes pdflush_operation()
 #include <linux/kthread.h>
 #include <linux/cpuset.h>
+#include <linux/freezer.h>
 
 
 /*
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 2a6a79f6813..f6616e81fac 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -36,6 +36,7 @@
 #include <linux/rwsem.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <linux/freezer.h>
 
 #include <asm/tlbflush.h>
 #include <asm/div64.h>
diff --git a/net/rxrpc/krxiod.c b/net/rxrpc/krxiod.c
index dada34a77b2..49effd92144 100644
--- a/net/rxrpc/krxiod.c
+++ b/net/rxrpc/krxiod.c
@@ -13,6 +13,7 @@
 #include <linux/completion.h>
 #include <linux/spinlock.h>
 #include <linux/init.h>
+#include <linux/freezer.h>
 #include <rxrpc/krxiod.h>
 #include <rxrpc/transport.h>
 #include <rxrpc/peer.h>
diff --git a/net/rxrpc/krxsecd.c b/net/rxrpc/krxsecd.c
index cea4eb5e249..3ab0f77409f 100644
--- a/net/rxrpc/krxsecd.c
+++ b/net/rxrpc/krxsecd.c
@@ -27,6 +27,7 @@
 #include <rxrpc/call.h>
 #include <linux/udp.h>
 #include <linux/ip.h>
+#include <linux/freezer.h>
 #include <net/sock.h>
 #include "internal.h"
 
diff --git a/net/rxrpc/krxtimod.c b/net/rxrpc/krxtimod.c
index 3e7466900bd..9a9b6132dba 100644
--- a/net/rxrpc/krxtimod.c
+++ b/net/rxrpc/krxtimod.c
@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/completion.h>
+#include <linux/freezer.h>
 #include <rxrpc/rxrpc.h>
 #include <rxrpc/krxtimod.h>
 #include <asm/errno.h>
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 64ca1f61dd9..1c68956824e 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -32,6 +32,7 @@
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
 #include <linux/file.h>
+#include <linux/freezer.h>
 #include <net/sock.h>
 #include <net/checksum.h>
 #include <net/ip.h>
-- 
cgit v1.2.3-70-g09d2


From a6d70980602e6f1869ebcdcbfaf55a0a5941583e Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@osdl.org>
Date: Wed, 6 Dec 2006 20:34:35 -0800
Subject: [PATCH] convert pm_sem to a mutex

The power management semaphore is only used as mutex, so convert it.

[akpm@osdl.org: fix rotten bug]
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 kernel/power/disk.c  | 16 ++++++++--------
 kernel/power/main.c  | 10 +++++-----
 kernel/power/power.h |  4 +++-
 kernel/power/user.c  | 24 ++++++++++++------------
 4 files changed, 28 insertions(+), 26 deletions(-)

(limited to 'kernel/power/disk.c')

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 53b3b57c022..08d9e7aac0f 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -213,10 +213,10 @@ static int software_resume(void)
 {
 	int error;
 
-	down(&pm_sem);
+	mutex_lock(&pm_mutex);
 	if (!swsusp_resume_device) {
 		if (!strlen(resume_file)) {
-			up(&pm_sem);
+			mutex_unlock(&pm_mutex);
 			return -ENOENT;
 		}
 		swsusp_resume_device = name_to_dev_t(resume_file);
@@ -231,7 +231,7 @@ static int software_resume(void)
 		 * FIXME: If noresume is specified, we need to find the partition
 		 * and reset it back to normal swap space.
 		 */
-		up(&pm_sem);
+		mutex_unlock(&pm_mutex);
 		return 0;
 	}
 
@@ -275,7 +275,7 @@ static int software_resume(void)
 	unprepare_processes();
  Done:
 	/* For success case, the suspend path will release the lock */
-	up(&pm_sem);
+	mutex_unlock(&pm_mutex);
 	pr_debug("PM: Resume from disk failed.\n");
 	return 0;
 }
@@ -336,7 +336,7 @@ static ssize_t disk_store(struct subsystem * s, const char * buf, size_t n)
 	p = memchr(buf, '\n', n);
 	len = p ? p - buf : n;
 
-	down(&pm_sem);
+	mutex_lock(&pm_mutex);
 	for (i = PM_DISK_FIRMWARE; i < PM_DISK_MAX; i++) {
 		if (!strncmp(buf, pm_disk_modes[i], len)) {
 			mode = i;
@@ -360,7 +360,7 @@ static ssize_t disk_store(struct subsystem * s, const char * buf, size_t n)
 
 	pr_debug("PM: suspend-to-disk mode set to '%s'\n",
 		 pm_disk_modes[mode]);
-	up(&pm_sem);
+	mutex_unlock(&pm_mutex);
 	return error ? error : n;
 }
 
@@ -385,9 +385,9 @@ static ssize_t resume_store(struct subsystem *subsys, const char *buf, size_t n)
 	if (maj != MAJOR(res) || min != MINOR(res))
 		goto out;
 
-	down(&pm_sem);
+	mutex_lock(&pm_mutex);
 	swsusp_resume_device = res;
-	up(&pm_sem);
+	mutex_unlock(&pm_mutex);
 	printk("Attempting manual resume\n");
 	noresume = 0;
 	software_resume();
diff --git a/kernel/power/main.c b/kernel/power/main.c
index 6096c71b182..751157b7897 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -25,7 +25,7 @@
 /*This is just an arbitrary number */
 #define FREE_PAGE_NUMBER (100)
 
-DECLARE_MUTEX(pm_sem);
+DEFINE_MUTEX(pm_mutex);
 
 struct pm_ops *pm_ops;
 suspend_disk_method_t pm_disk_mode = PM_DISK_SHUTDOWN;
@@ -37,9 +37,9 @@ suspend_disk_method_t pm_disk_mode = PM_DISK_SHUTDOWN;
 
 void pm_set_ops(struct pm_ops * ops)
 {
-	down(&pm_sem);
+	mutex_lock(&pm_mutex);
 	pm_ops = ops;
-	up(&pm_sem);
+	mutex_unlock(&pm_mutex);
 }
 
 
@@ -183,7 +183,7 @@ static int enter_state(suspend_state_t state)
 
 	if (!valid_state(state))
 		return -ENODEV;
-	if (down_trylock(&pm_sem))
+	if (!mutex_trylock(&pm_mutex))
 		return -EBUSY;
 
 	if (state == PM_SUSPEND_DISK) {
@@ -201,7 +201,7 @@ static int enter_state(suspend_state_t state)
 	pr_debug("PM: Finishing wakeup.\n");
 	suspend_finish(state);
  Unlock:
-	up(&pm_sem);
+	mutex_unlock(&pm_mutex);
 	return error;
 }
 
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 3afa5dbe6bc..eb461b816bf 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -22,7 +22,9 @@ static inline int pm_suspend_disk(void)
 	return -EPERM;
 }
 #endif
-extern struct semaphore pm_sem;
+
+extern struct mutex pm_mutex;
+
 #define power_attr(_name) \
 static struct subsys_attribute _name##_attr = {	\
 	.attr	= {				\
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 26c66941c00..905dc269c3f 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -79,10 +79,10 @@ static int snapshot_release(struct inode *inode, struct file *filp)
 	free_all_swap_pages(data->swap, data->bitmap);
 	free_bitmap(data->bitmap);
 	if (data->frozen) {
-		down(&pm_sem);
+		mutex_lock(&pm_mutex);
 		thaw_processes();
 		enable_nonboot_cpus();
-		up(&pm_sem);
+		mutex_unlock(&pm_mutex);
 	}
 	atomic_inc(&device_available);
 	return 0;
@@ -144,7 +144,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 	case SNAPSHOT_FREEZE:
 		if (data->frozen)
 			break;
-		down(&pm_sem);
+		mutex_lock(&pm_mutex);
 		error = disable_nonboot_cpus();
 		if (!error) {
 			error = freeze_processes();
@@ -154,7 +154,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 				error = -EBUSY;
 			}
 		}
-		up(&pm_sem);
+		mutex_unlock(&pm_mutex);
 		if (!error)
 			data->frozen = 1;
 		break;
@@ -162,10 +162,10 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 	case SNAPSHOT_UNFREEZE:
 		if (!data->frozen)
 			break;
-		down(&pm_sem);
+		mutex_lock(&pm_mutex);
 		thaw_processes();
 		enable_nonboot_cpus();
-		up(&pm_sem);
+		mutex_unlock(&pm_mutex);
 		data->frozen = 0;
 		break;
 
@@ -174,7 +174,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 			error = -EPERM;
 			break;
 		}
-		down(&pm_sem);
+		mutex_lock(&pm_mutex);
 		/* Free memory before shutting down devices. */
 		error = swsusp_shrink_memory();
 		if (!error) {
@@ -187,7 +187,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 			}
 			resume_console();
 		}
-		up(&pm_sem);
+		mutex_unlock(&pm_mutex);
 		if (!error)
 			error = put_user(in_suspend, (unsigned int __user *)arg);
 		if (!error)
@@ -201,7 +201,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 			error = -EPERM;
 			break;
 		}
-		down(&pm_sem);
+		mutex_lock(&pm_mutex);
 		pm_prepare_console();
 		suspend_console();
 		error = device_suspend(PMSG_PRETHAW);
@@ -211,7 +211,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 		}
 		resume_console();
 		pm_restore_console();
-		up(&pm_sem);
+		mutex_unlock(&pm_mutex);
 		break;
 
 	case SNAPSHOT_FREE:
@@ -286,7 +286,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 			break;
 		}
 
-		if (down_trylock(&pm_sem)) {
+		if (!mutex_trylock(&pm_mutex)) {
 			error = -EBUSY;
 			break;
 		}
@@ -314,7 +314,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 			pm_ops->finish(PM_SUSPEND_MEM);
 
 OutS3:
-		up(&pm_sem);
+		mutex_unlock(&pm_mutex);
 		break;
 
 	case SNAPSHOT_PMOPS:
-- 
cgit v1.2.3-70-g09d2


From 59a493350e7aefff7e262efa39e017517b31b8e8 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Wed, 6 Dec 2006 20:34:44 -0800
Subject: [PATCH] swsusp: Fix labels

Move all labels in the swsusp code to the second column, so that they won't
fool diff -p.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Nigel Cunningham <nigel@suspend2.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 kernel/power/disk.c     | 6 +++---
 kernel/power/snapshot.c | 8 ++++----
 kernel/power/swap.c     | 4 ++--
 kernel/power/swsusp.c   | 2 +-
 kernel/power/user.c     | 2 +-
 5 files changed, 11 insertions(+), 11 deletions(-)

(limited to 'kernel/power/disk.c')

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 08d9e7aac0f..126dda61f45 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -117,9 +117,9 @@ static int prepare_processes(void)
 		return 0;
 
 	platform_finish();
-thaw:
+ thaw:
 	thaw_processes();
-enable_cpus:
+ enable_cpus:
 	enable_nonboot_cpus();
 	pm_restore_console();
 	return error;
@@ -392,7 +392,7 @@ static ssize_t resume_store(struct subsystem *subsys, const char *buf, size_t n)
 	noresume = 0;
 	software_resume();
 	ret = n;
-out:
+ out:
 	return ret;
 }
 
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 712f1524d84..c024606221c 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -411,7 +411,7 @@ memory_bm_create(struct memory_bitmap *bm, gfp_t gfp_mask, int safe_needed)
 	memory_bm_position_reset(bm);
 	return 0;
 
-Free:
+ Free:
 	bm->p_list = ca.chain;
 	memory_bm_free(bm, PG_UNSAFE_CLEAR);
 	return -ENOMEM;
@@ -557,7 +557,7 @@ static unsigned long memory_bm_next_pfn(struct memory_bitmap *bm)
 	memory_bm_position_reset(bm);
 	return BM_END_OF_MAP;
 
-Return_pfn:
+ Return_pfn:
 	bm->cur.chunk = chunk;
 	bm->cur.bit = bit;
 	return bb->start_pfn + chunk * BM_BITS_PER_CHUNK + bit;
@@ -964,7 +964,7 @@ swsusp_alloc(struct memory_bitmap *orig_bm, struct memory_bitmap *copy_bm,
 	}
 	return 0;
 
-Free:
+ Free:
 	swsusp_free();
 	return -ENOMEM;
 }
@@ -1540,7 +1540,7 @@ prepare_image(struct memory_bitmap *new_bm, struct memory_bitmap *bm)
 	}
 	return 0;
 
-Free:
+ Free:
 	swsusp_free();
 	return error;
 }
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index dedf8797b72..f133d4a6d81 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -301,7 +301,7 @@ static int swap_write_page(struct swap_map_handle *handle, void *buf,
 		handle->cur_swap = offset;
 		handle->k = 0;
 	}
-out:
+ out:
 	return error;
 }
 
@@ -429,7 +429,7 @@ int swsusp_write(void)
 	if (error)
 		free_all_swap_pages(root_swap, handle.bitmap);
 	release_swap_writer(&handle);
-out:
+ out:
 	swsusp_close();
 	return error;
 }
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index aa31432bbd9..31aa0390c77 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -288,7 +288,7 @@ int swsusp_suspend(void)
 	 * that suspended with irqs off ... no overall powerup.
 	 */
 	device_power_up();
-Enable_irqs:
+ Enable_irqs:
 	local_irq_enable();
 	return error;
 }
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 905dc269c3f..069732e5695 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -313,7 +313,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
 		if (pm_ops->finish)
 			pm_ops->finish(PM_SUSPEND_MEM);
 
-OutS3:
+ OutS3:
 		mutex_unlock(&pm_mutex);
 		break;
 
-- 
cgit v1.2.3-70-g09d2


From 2d87595ea628ea58415ba4638c553a8c2fbd90e2 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rjw@sisk.pl>
Date: Wed, 6 Dec 2006 20:34:47 -0800
Subject: [PATCH] PM: Fix swsusp debug mode testproc

The 'testproc' swsusp debug mode thaws tasks twice in a row, which is _very_
confusing.  Fix that.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 kernel/power/disk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'kernel/power/disk.c')

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 126dda61f45..6180379d5b8 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -151,7 +151,7 @@ int pm_suspend_disk(void)
 		return error;
 
 	if (pm_disk_mode == PM_DISK_TESTPROC)
-		goto Thaw;
+		return 0;
 
 	suspend_console();
 	error = device_suspend(PMSG_FREEZE);
-- 
cgit v1.2.3-70-g09d2


From 5045cfc103566878228ca36d05a0ae0076673e5a Mon Sep 17 00:00:00 2001
From: Pavel Machek <pavel@ucw.cz>
Date: Wed, 6 Dec 2006 20:34:48 -0800
Subject: [PATCH] swsusp: kill write-only variable

Cleanup write-only variable, suggested by D Binderman.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 kernel/power/disk.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'kernel/power/disk.c')

diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 6180379d5b8..0b00f56c2ad 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -58,12 +58,10 @@ static inline int platform_prepare(void)
 
 static void power_down(suspend_disk_method_t mode)
 {
-	int error = 0;
-
 	switch(mode) {
 	case PM_DISK_PLATFORM:
 		kernel_shutdown_prepare(SYSTEM_SUSPEND_DISK);
-		error = pm_ops->enter(PM_SUSPEND_DISK);
+		pm_ops->enter(PM_SUSPEND_DISK);
 		break;
 	case PM_DISK_SHUTDOWN:
 		kernel_power_off();
-- 
cgit v1.2.3-70-g09d2