Re: [RFC][PATCH 0/2] Rework disabling of interrupts during suspend-resume

Eric W. Biederman
2009-02-22T22:37:19Z

"Rafael J. Wysocki" <rjw@sisk.pl> writes:

> Moreover, the real purpose of these changes is to be able to execute the
> "late" suspend and "early" resume device callbacks with timer interrupts
> enabled, so that they can use mutexes etc. However, x86 currently doesn't set
> the IRQF_TIMER flag and I need to make it do so before going further in this
> direction and changing the PCI PM framework to take advantage of the $subject
> changes, for example. So, I need to know how to modify x86 timer code so that
> the IRQF_TIMER flag is set by it.

How does this sync with the ACPI requirement that the it's late suspend MUST
happen with irqs disabled?

Eric