linux-kernel - Re: hmm_range_fault related fixes and legacy API removal v2

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Message-ID: <20190709193320.GD3422@ziepe.ca>
Date:   Tue, 9 Jul 2019 16:33:20 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Christoph Hellwig <hch@....de>
Cc:     Jérôme Glisse <jglisse@...hat.com>,
        Ben Skeggs <bskeggs@...hat.com>,
        Ralph Campbell <rcampbell@...dia.com>, linux-mm@...ck.org,
        nouveau@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: hmm_range_fault related fixes and legacy API removal v2

On Tue, Jul 09, 2019 at 04:30:38PM +0200, Christoph Hellwig wrote:
> On Fri, Jul 05, 2019 at 09:33:36AM -0300, Jason Gunthorpe wrote:
> > On Wed, Jul 03, 2019 at 03:02:08PM -0700, Christoph Hellwig wrote:
> > > Hi Jérôme, Ben and Jason,
> > > 
> > > below is a series against the hmm tree which fixes up the mmap_sem
> > > locking in nouveau and while at it also removes leftover legacy HMM APIs
> > > only used by nouveau.
> >
> > As much as I like this series, it won't make it to this merge window,
> > sorry.
> 
> Note that patch 4 fixes a pretty severe locking bug, and 1-3 is just
> preparation for that.  

Yes, I know, but that code is all marked STAGING last I saw, so I
don't feel an urgency to get severe bug fixes in for it after the
merge window opens.

I'd like to apply it to hmm.git when rc1 comes out with Ralph's test
result..

Jason