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

From: Theodore Tso
Date: Thu Apr 26 2007 - 17:07:15 EST

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

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