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SubjectRe: [RFC PATCH] freezer: revert 27920651fe "PM / Freezer: Make fake_signal_wake_up() wake TASK_KILLABLE tasks too"
Hi,

On 11/01, Tejun Heo wrote:
>
> For now, let's go with the count/dont_count. Can you please write up
> a patch for that? Jeff, does this seem okay to you?

OK, will do in a minute. On top of
"[PATCH pm] freezer: fix wait_event_freezable/__thaw_task races"
you sent. (btw, thanks, I forgout about it ;)

Rafael, could you remind why freezer_do_not_count/freezer_count check
->mm != NULL ?

The comment says "However, we don't want kernel threads to be frozen",
but it is not clear anyway. A kernel thread simply shouldn't use this
interface if it doesn't want to freeze.

And in any case, PF_KTHREAD looks better if we really need to filter
out the kernel threads.

Oleg.



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