[BIG RFC] Filesystem-based checkpoint

[Serge E. Hallyn]

Quoting Dave Hansen (dave at linux.vnet.ibm.com):
> On Thu, 2008-10-30 at 14:28 -0500, Serge E. Hallyn wrote:
> > Now maybe eventually he's going to propose something more esotaric where
> > doing the mount() actually starts the checkpoint (that's where I figured
> > he'd be heading), but I think it would still be one action on the part
> > of userspace telling the kernel "do a checkpoint".
> > 
> > (Or am I wrong on that, Dave?)
> 
> I don't really care how it is initiated.  If a checkpoint was initiated
> by sys_mount() with special mount options, I don't see a real
> distinction between that and sys_checkpoint().  Or, a special ioctl() on
> a special device file for that matter.  How we initiate it isn't
> important to me.

Ok, that's what I though.

-serge