linux-kernel - Re: [suspend/resume] Re: userspace notification from module

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Message-ID: <6f52f5b81001020715i79d2ea1j33443fa50fbb593c@mail.gmail.com>
Date:	Sat, 2 Jan 2010 16:15:53 +0100
From:	Daniel Borkmann <danborkmann@...glemail.com>
To:	Bartłomiej Zimoń <uzi18@...pl>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [suspend/resume] Re: userspace notification from module

Hi Bartłomiej,

2010/1/2 Bartłomiej Zimoń <uzi18@...pl>
>
> This looks like more simple and could be good, after all i think about sending this
> module here to add to kernel. So if this solution could be ok i will start to code this part.
>
> Question is now what signal to choose to not terminate process and to be compatible
> with rest of Linux kernel?

Have a look at linux/signal.h. There's a section for non-POSIX
signals. May be you
could add a SIGSUS or sth similar into that list with a free signal
number to stay
compatible with the rest of the numbers.

Cool thing is that you now will have a kind of "observer" principle:
Don't call us, we call you ;)

Cheers,
Daniel Borkmann
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