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

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Message-ID: <4BABC5B6.2070301@crca.org.au>
Date:	Fri, 26 Mar 2010 07:21:10 +1100
From:	Nigel Cunningham <ncunningham@...a.org.au>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Pavel Machek <pavel@....cz>, Jiri Slaby <jslaby@...e.cz>,
	jirislaby@...il.com, linux-pm@...ts.linux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: what the patches do Re: [RFC 10/15] PM / Hibernate: user, implement
 user_ops reader

Hi.

On 26/03/10 07:14, Rafael J. Wysocki wrote:
> On Thursday 25 March 2010, Nigel Cunningham wrote:
>> 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?
>
> No, we can't.
>
>> 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.
>
> We're not dropping user space interfaces used by every distro I know of.

So what's your long term plan then?

Regards,

Nigel
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