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SubjectRe: [PATCH 1/4] freezer: make fake_signal_wake_up wake TASK_KILLABLE tasks too


> TASK_KILLABLE is often used to put tasks to sleep for quite some time.
> One of the most common uses is to put tasks to sleep while waiting for
> replies from a server on a networked filesystem (such as CIFS or NFS).
> Unfortunately, fake_signal_wake_up does not currently wake up tasks
> that are sleeping in TASK_KILLABLE state. This means that even if the
> code were in place to allow them to freeze while in this sleep, it
> wouldn't work anyway.
> This patch changes this function to wake tasks in this state as well.
> This should be harmless -- if the code doing the sleeping doesn't have
> handling to deal with freezer events, it should just go back to sleep.

I'm pretty sure this will break something; but that does not mean it
is bad idea, just that it should be merged early and tested a lot.

(cesky, pictures)

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