Tejun Heo wrote:
From: Rafael J. Wysocki <rjw@xxxxxxx> 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@xxxxxxx> Signed-off-by: Tejun Heo <tj@xxxxxxxxxx> --- include/linux/suspend.h | 2 ++ kernel/power/disk.c | 10 ++++++++++ 2 files changed, 12 insertions(+), 0 deletions(-)
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