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[PATCH] swsusp: add s2ram ioctl to userland interface

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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 <kronos.it@gmail.com>
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>
This commit is contained in:
Luca Tettamanti
2006-03-23 03:00:09 -08:00
committed by Linus Torvalds
parent 94c188d329
commit 9b238205ba
3 changed files with 40 additions and 2 deletions
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2
kernel/power/main.c
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@@ -103,7 +103,7 @@ static int suspend_prepare(suspend_state_t state)
}
static int suspend_enter(suspend_state_t state)
int suspend_enter(suspend_state_t state)
{
int error = 0;
unsigned long flags;