11 May, 2010
1 commit
-
Opening and closing /dev/snapshot causes the kernel to carry out
some hibernate preparations that should be documented.[rjw: Added the changelog.]
Signed-off-by: Pavel Machek
Signed-off-by: Rafael J. Wysocki
13 Jun, 2009
1 commit
-
Fix various typos in documentation txts.
Signed-off-by: Matt LaPlante
Signed-off-by: Jiri Kosina
02 Feb, 2008
5 commits
-
Move the definitions of hibernation ioctls to a separate header file in
include/linux, which can be exported to the user space.Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Signed-off-by: Len Brown -
Three ioctl numbers belonging to the hibernation userland interface,
SNAPSHOT_ATOMIC_SNAPSHOT, SNAPSHOT_AVAIL_SWAP, SNAPSHOT_GET_SWAP_PAGE,
are defined in a wrong way (eg. not portable). Provide new ioctl numbers for
these ioctls and mark the existing ones as deprecated.Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Signed-off-by: Len Brown -
Mark the SNAPSHOT_SET_SWAP_FILE ioctl belonging to the hibernation userland
interface as deprecated.Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Signed-off-by: Len Brown -
Modify the hibernation userland interface by adding two new ioctls to it,
SNAPSHOT_PLATFORM_SUPPORT and SNAPSHOT_POWER_OFF, that can be used,
respectively, to switch the hibernation platform support on/off and to make the
kernel transition the system to the hibernation state (eg. ACPI S4) using the
platform (eg. ACPI) driver.These ioctls are intended to replace the misdesigned SNAPSHOT_PMOPS ioctl,
which from now is regarded as obsolete and will be removed in the future.Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Signed-off-by: Len Brown -
Add a new ioctl, SNAPSHOT_GET_IMAGE_SIZE, returning the size of the (just
created) hibernation image, to the hibernation userland interface.This ioctl is necessary so that the userland utilities using the interface need
not access the hibernation image header, owned by the kernel, in order to obtain
the size of the image.Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Signed-off-by: Len Brown
10 May, 2007
1 commit
-
[ With Johannes Berg ]
Separate the hibernation (aka suspend to disk code) from the other suspend
code. In particular:* Remove the definitions related to hibernation from include/linux/pm.h
* Introduce struct hibernation_ops and a new hibernate() function to hibernate
the system, defined in include/linux/suspend.h
* Separate suspend code in kernel/power/main.c from hibernation-related code
in kernel/power/disk.c and kernel/power/user.c (with the help of
hibernation_ops)
* Switch ACPI (the only user of pm_ops.pm_disk_mode) to hibernation_opsSigned-off-by: Rafael J. Wysocki
Cc: Greg KH
Cc: Pavel Machek
Cc: Nigel Cunningham
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
08 Dec, 2006
1 commit
-
The swsusp userland interface has recently changed for a couple of times, but
the changes have not been documented. Fix this, and document the
SNAPSHOT_SET_SWAP_AREA ioctl().Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
04 Oct, 2006
1 commit
-
This patch fixes typos in various Documentation txts. The patch addresses
some words starting with the letters 'N'-'P'.Signed-off-by: Matt LaPlante
Acked-by: Randy Dunlap
Signed-off-by: Adrian Bunk
23 Mar, 2006
1 commit
-
This patch introduces a user space interface for swsusp.
The interface is based on a special character device, called the snapshot
device, that allows user space processes to perform suspend and resume-related
operations with the help of some ioctls and the read()/write() functions.
Additionally it allows these processes to allocate free swap pages from a
selected swap partition, called the resume partition, so that they know which
sectors of the resume partition are available to them.The interface uses the same low-level system memory snapshot-handling
functions that are used by the built-it swap-writing/reading code of swsusp.The interface documentation is included in the patch.
The patch assumes that the major and minor numbers of the snapshot device will
be 10 (ie. misc device) and 231, the registration of which has already been
requested.Signed-off-by: Rafael J. Wysocki
Acked-by: Pavel Machek
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds