Re: [RFC][PATCH 3/5] add /dev/mem_notify device

From: Pavel Machek
Date: Tue Jan 15 2008 - 17:16:39 EST


Hi!

> the core of this patch series.
> add /dev/mem_notify device for notification low memory to user process.
>
> <usage examle>
>
> fd = open("/dev/mem_notify", O_RDONLY);
> if (fd < 0) {
> exit(1);
> }
> pollfds.fd = fd;
> pollfds.events = POLLIN;
> pollfds.revents = 0;
> err = poll(&pollfds, 1, -1); // wake up at low memory
>
> ...
> </usage example>

Nice, this is really needed for openmoko, zaurus, etc....

But this changelog needs to go into Documentation/...

...and /dev/mem_notify is really a bad name. /dev/memory_low?
/dev/oom?

Pavel
--
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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