linux-toradex.git/kernel/power, branch v2.6.17.13

[PATCH] off-by-1 in kernel/power/main.c

2006-04-28T15:33:46+00:00

There's an off-by-1 in kernel/power/main.c:state_store() ...  if your
kernel just happens to have some non-zero data at pm_states[PM_SUSPEND_MAX]
(i.e.  one past the end of the array) then it'll let you write anything you
want to /sys/power/state and in response the box will enter S5.

Signed-off-by: dean gaudet 
Acked-by: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] swsusp: prevent possible image corruption on resume

2006-04-19T16:13:49+00:00

The function free_pagedir() used by swsusp for freeing its internal data
structures clears the PG_nosave and PG_nosave_free flags for each page
being freed.

However, during resume PG_nosave_free set means that the page in
question is "unsafe" (ie.  it will be overwritten in the process of
restoring the saved system state from the image), so it should not be
used for the image data.

Therefore free_pagedir() should not clear PG_nosave_free if it's called
during resume (otherwise "unsafe" pages freed by it may be used for
storing the image data and the data may get corrupted later on).

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

[PATCH] remove kernel/power/pm.c:pm_unregister()

2006-04-14T19:25:26+00:00

Since the last user is removed in -mm, we can now remove this long deprecated
function.

Signed-off-by: Adrian Bunk 
Cc: Pavel Machek 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

help text: SOFTWARE_SUSPEND doesn't need ACPI

2006-03-31T23:03:08+00:00

The note that SOFTWARE_SUSPEND doesn't need APM is helpful, but nowadays
the information that it doesn't need ACPI, too, is even more helpful.

Signed-off-by: Adrian Bunk

[PATCH] Fix suspend with traced tasks

2006-03-31T20:18:50+00:00

strace /bin/bash misbehaves after resume; this fixes it.

(akpm: it's scary calling refrigerator() in state TASK_TRACED, but it seems to
do the right thing).

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

[PATCH] swswsup: return correct load_image error

2006-03-26T16:56:55+00:00

If there's an error in load_image() we should return that without checking
snapshot_image_loaded.

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

[PATCH] Check if cpu can be onlined before calling smp_prepare_cpu()

2006-03-25T16:23:01+00:00

- Moved check for online cpu out of smp_prepare_cpu()

- Moved default declaration of smp_prepare_cpu() to kernel/cpu.c

- Removed lock_cpu_hotplug() from smp_prepare_cpu() to around it, since
  its called from cpu_up() as well now.

- Removed clearing from cpu_present_map during cpu_offline as it breaks
  using cpu_up() directly during a subsequent online operation.

Signed-off-by: Ashok Raj 
Cc: Srivatsa Vaddagiri 
Cc: "Li, Shaohua" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] sem2mutex: kernel/

2006-03-23T15:38:10+00:00

Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Arjan van de Ven 
Signed-off-by: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] swsusp: add s2ram ioctl to userland interface

2006-03-23T15:38:08+00:00

Add the SNAPSHOT_S2RAM ioctl to the snapshot device.

This ioctl allows a userland application to make the system (previously frozen
with the SNAPSHOT_FREE ioctl) enter the S3 state without freezing processes
and disabling nonboot CPUs for the second time.

This will allow us to implement the suspend-to-disk-and-RAM (STDR)
functionality in the userland suspend tools.

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

[PATCH] swsusp: let userland tools switch console on suspend

2006-03-23T15:38:08+00:00

Remove the console-switching code from the suspend part of the swsusp userland
interface and let the userland tools switch the console.

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