linux-toradex.git/kernel/power/disk.c, branch v2.6.20.21

Pull bugfix into test branch

2006-12-16T06:01:18+00:00

Conflicts:

	kernel/power/disk.c

[PATCH] swsusp: kill write-only variable

2006-12-07T16:39:29+00:00

Cleanup write-only variable, suggested by D Binderman.

Signed-off-by: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] PM: Fix swsusp debug mode testproc

2006-12-07T16:39:28+00:00

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

Signed-off-by: Rafael J. Wysocki 
Acked-by: Pavel Machek 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] swsusp: Fix labels

2006-12-07T16:39:28+00:00

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 
Acked-by: Pavel Machek 
Cc: Nigel Cunningham 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] convert pm_sem to a mutex

2006-12-07T16:39:28+00:00

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

[akpm@osdl.org: fix rotten bug]
Signed-off-by: Stephen Hemminger 
Acked-by: Ingo Molnar 
Acked-by: Pavel Machek 
Cc: "Rafael J. Wysocki" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] Add include/linux/freezer.h and move definitions from sched.h

2006-12-07T16:39:27+00:00

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 
Cc: "Rafael J. Wysocki" 
Cc: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] swsusp: fix platform mode

2006-12-07T16:39:27+00:00

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 
Acked-by: "Rafael J. Wysocki" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] swsusp: add resume_offset command line parameter

2006-12-07T16:39:27+00:00

Add the kernel command line parameter "resume_offset=" allowing us to specify
the offset, in  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 
Cc: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] swsusp: debugging

2006-11-03T20:27:58+00:00

Add a swsusp debugging mode.  This does everything that's needed for a suspend
except for actually suspending.  So we can look in the log messages and work
out a) what code is being slow and b) which drivers are misbehaving.

(1)
# echo testproc > /sys/power/disk
# echo disk > /sys/power/state

This should turn off the non-boot CPU, freeze all processes, wait for 5
seconds and then thaw the processes and the CPU.

(2)
# echo test > /sys/power/disk
# echo disk > /sys/power/state

This should turn off the non-boot CPU, freeze all processes, shrink
memory, suspend all devices, wait for 5 seconds, resume the devices etc.

Cc: Pavel Machek 
Cc: Stefan Seyfried 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ACPI: S4: Use "platform" rather than "shutdown" mode by default

2006-11-02T03:40:23+00:00

It has been reported that on some systems the functionality after a resume
from disk is limited if the system is simply powered off during the suspend
instead of using the ACPI S4 suspend (aka platform mode).

Unfortunately the default is currently to power off the system during the
suspend so the users of these systems experience problems after the resume
if they don't switch to the platform mode explicitly.  This patch makes swsusp
use the platform mode by default to avoid such situations.

Signed-off-by: Rafael J. Wysocki 
Acked-by: Stefan Seyfried 
Acked-by: Pavel Machek 
Signed-off-by: Len Brown