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

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Message-ID: <20070426113336.GV17387@elf.ucw.cz>
Date:	Thu, 26 Apr 2007 13:33:36 +0200
From:	Pavel Machek <pavel@....cz>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	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>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2: hang in atomic copy)

Hi!

> > Yes, probably will. The other option is to break existing 32-bit
> > userspace, which is a bit more common AFAICT.
> 
> Judging from experience with the wext 32/64 bit fiasco it seems to be
> rather uncommon to use 32-bit userspace on 64-bit machines.

Well, it would break 32-bit userspace on 32-bit kernel, which is the
most common version, AFAICT.

> Rafael hinted that we could just add these numbers, keep the existing
> ones and then phase them out over time, but I haven't really given it
> much thought.

We could probably do that... but it is slightly ugly.



-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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