[Nouveau] hmm_range_fault related fixes and legacy API removal v2

[Christoph Hellwig]

On Tue, Jul 23, 2019 at 03:27:41PM +0000, Jason Gunthorpe wrote:
> Ignoring the STAGING issue I've tried to use the same guideline as for
> -stable for -rc .. 
> 
> So this is a real problem, we definitely hit the locking bugs if we
> retry/etc under stress, so I would be OK to send it to Linus for
> early-rc.
> 
> However, it doesn't look like the 1st patch is fixing a current bug
> though, the only callers uses blocking = true, so just the middle
> three are -rc?

nonblocking isn't used anywher, but it is a major, major API bug.
Your call, but if it was my tree I'd probably send it to Linus.