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Rafael J. Wysocki 9cd9a0058d Hibernation: Enter platform hibernation state in a consistent way ... Make hibernation_platform_enter() execute the enter-a-sleep-state sequence instead of the mixed shutdown-with-entering-S4 thing. Replace the shutting down of devices done by kernel_shutdown_prepare(), before entering the ACPI S4 sleep state, with suspending them and the shutting down of sysdevs with calling device_power_down(PMSG_SUSPEND) (just like before entering S1 or S3, but the target state is now S4).  Also, disable the nonboot CPUs before entering the sleep state (S4), which generally always is a good idea. This is known to fix the "double disk spin down during hibernation" on some machines, eg. HPC nx6325 (ref. http://lkml.org/lkml/2007/8/7/316 and the following thread).  Moreover, it has been reported to make /sys/class/rtc/rtc0/wakealarm work correctly with hibernation for some users. It also generally causes the hibernation state (ACPI S4) to be entered faster. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		17 years ago
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Kconfig	…
Makefile	…
console.c	…
disk.c	Hibernation: Enter platform hibernation state in a consistent way	17 years ago
main.c	…
pm.c	…
power.h	Hibernation: Check if ACPI is enabled during restore in the right place	17 years ago
poweroff.c	…
process.c	…
snapshot.c	Hibernation: Arbitrary boot kernel support - generic code	17 years ago
swap.c	…
swsusp.c	Hibernation: Check if ACPI is enabled during restore in the right place	17 years ago
user.c	…