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authorRafael J. Wysocki <rjw@sisk.pl>2009-01-19 20:54:54 +0100
committerJeff Garzik <jgarzik@redhat.com>2009-01-27 08:15:45 +0100
commitabfe2d7b915c872f3a1fd203267cedebf90daa45 (patch)
treea76cc5012e6d46da44b2e861df172ceef25bd39b /drivers/firmware
parentMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rol... (diff)
downloadlinux-abfe2d7b915c872f3a1fd203267cedebf90daa45.tar.xz
linux-abfe2d7b915c872f3a1fd203267cedebf90daa45.zip
Hibernation: Introduce system_entering_hibernation
Introduce boolean function system_entering_hibernation() returning 'true' during the last phase of hibernation, in which devices are being put into low power states and the sleep state (for example, ACPI S4) is finally entered. Some device drivers need such a function to check if the system is in the final phase of hibernation. In particular, some SATA drivers are going to use it for blacklisting systems in which the disks should not be spun down during the last phase of hibernation (the BIOS will do that anyway). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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