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Date: Thu, 26 Apr 2007 17:06:31 -0400
From: Theodore Tso <tytso@mit.edu>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Pavel Machek <pavel@ucw.cz>, Johannes Berg <johannes@sipsolutions.net>,
       Nick Piggin <npiggin@suse.de>, Mike Galbraith <efault@gmx.de>,
       linux-kernel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
       Con Kolivas <kernel@kolivas.org>, suspend2-devel@lists.suspend2.net,
       Ingo Molnar <mingo@elte.hu>, Andrew Morton <akpm@linux-foundation.org>,
       Arjan van de Ven <arjan@infradead.org>,
       "Rafael J. Wysocki" <rjw@sisk.pl>
Subject: Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2: hang in atomic copy)
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On Thu, Apr 26, 2007 at 08:56:48AM -0700, Linus Torvalds wrote:
> 
> 
> On Thu, 26 Apr 2007, Pavel Machek wrote:
> > 
> > Yes, probably will. The other option is to break existing 32-bit
> > userspace, which is a bit more common AFAICT.
> 
> And *this* is why kernel/userspace things simply should not be done.
> 
> It's simply better to do things entirely in the kernel. Because you add 
> bugs and complications otherwise, and doing it in the kernel allows you 
> to just switch things around.
> 
> As it is, it appears that user-space suspend is just broken whichever way 
> we turn.

Well, in that case maybe suspend2 should be very seriously considered,
since it has the features of uswsusp --- basic features which every
single Microsoft and MacOSX user are used to like, like progress bars
--- and it's all done in the kernel.

					- Ted