linux-kernel - Re: RFC: Run a dedicated hmm.git for 5.3

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Date:   Mon, 27 May 2019 16:12:47 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Dave Airlie <airlied@...hat.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Jerome Glisse <jglisse@...hat.com>,
        linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
        Leon Romanovsky <leonro@...lanox.com>,
        Doug Ledford <dledford@...hat.com>,
        Artemy Kovalyov <artemyko@...lanox.com>,
        Moni Shoua <monis@...lanox.com>,
        Mike Marciniszyn <mike.marciniszyn@...el.com>,
        Kaike Wan <kaike.wan@...el.com>,
        Dennis Dalessandro <dennis.dalessandro@...el.com>,
        linux-mm@...ck.org, dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: RFC: Run a dedicated hmm.git for 5.3

On Sat, May 25, 2019 at 03:52:10PM -0700, Andrew Morton wrote:
> On Fri, 24 May 2019 09:44:55 -0300 Jason Gunthorpe <jgg@...pe.ca> wrote:
> 
> > Now that -mm merged the basic hmm API skeleton I think running like
> > this would get us quickly to the place we all want: comprehensive in tree
> > users of hmm.
> > 
> > Andrew, would this be acceptable to you?
> 
> Sure.  Please take care not to permit this to reduce the amount of
> exposure and review which the core HMM pieces get.

Certainly, thanks all

Jerome: I started a HMM branch on v5.2-rc2 in the rdma.git here:

git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git
https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/log/?h=hmm

Please send a series with the initial cross tree stuff:
 - kconfig fixing patches
 - The full removal of all the 'temporary for merging' APIs
 - Fixing the API of hmm_range_register to accept a mirror

When these are ready I'll send a hmm PR to DRM so everyone is on the
same API page.

I'll also move the hugetlb patch that Andrew picked up into this git
so we don't have a merge conflict risk

In parallel let us also finish revising the mirror API and going
through the ODP stuff.

Regards,
Jason