linux-kernel - Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2: hang in atomic copy)

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Message-ID: <20070425234549.GM17387@elf.ucw.cz>
Date:	Thu, 26 Apr 2007 01:45:49 +0200
From:	Pavel Machek <pavel@....cz>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Nigel Cunningham <nigel@...el.suspend2.net>,
	Kenneth Crudup <kenny@...ix.com>,
	Nick Piggin <npiggin@...e.de>, Mike Galbraith <efault@....de>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Con Kolivas <kernel@...ivas.org>,
	suspend2-devel@...ts.suspend2.net, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2: hang in atomic copy)

Hi!

> > Current design is:
> 
> Broken. Yes. I've tried to tell you.

Ok.

...

> It's worse than just confusing, it's *idiotic*.
> 
> It _can_ work in practice, but
>  - we have pretty damn solid evidence that it doesn't work all that often 
>    in practice
>  - the fact that something *can* be done the stupid way is in no way an 
>    argument that it *should* be done the stupid way.
> 
> I claim that the current STD is *stupid*. Yes, it can work. But that 
> doesn't make it less stupid.

Good. So you understand how it works.

> What's your argument? Your argument seems to be that it's not stupid, 
> because it can work. Can't you see that that simply isn't an
> argument at 

I tried keeping module_init/thaw/resume similar code, so that driver
authors can debug suspend-to-disk, cross their fingers, and have
suspend-to-ram work, too.

Now, perhaps enough people do std/str these days so this is not
important any longer... lets hope so.
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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