linux-kernel - Re: what the patches do Re: [RFC 10/15] PM / Hibernate: user, implement user

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Message-ID: <4BAAF7DA.30506@crca.org.au>
Date:	Thu, 25 Mar 2010 16:42:50 +1100
From:	Nigel Cunningham <ncunningham@...a.org.au>
To:	Pavel Machek <pavel@....cz>
CC:	Jiri Slaby <jslaby@...e.cz>, jirislaby@...il.com,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: what the patches do Re: [RFC 10/15] PM / Hibernate: user, implement
 user_ops reader

Hi.

On 25/03/10 16:30, Pavel Machek wrote:
[...]

> I have some problems with sws_module_ops interface (handcoded locking
> is too ugly to live), but it is better than I expected. But there may
> be better solution available, one that does not need two interfaces to
> maintain (we can't really get rid of userland interface). What about
> this?

Just picking up on that bracketed part: Can we flag the userland 
interface (and uswsusp) as being planned for eventual removal now... or 
at least agree to work toward that?

I'm asking because if we're going to make a go of getting the in-kernel 
code in much better shape, and we have Rafael, Jiri and I - and you? - 
all pulling in the same direction to improve it, there's going to come a 
point (hopefully not too far away) where uswsusp is just making life too 
difficult, and getting rid of it will be a big help.

Regards,

Nigel
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