linux-kernel - Re: [PATCH] mm/doc: add usage description for migrate_vma

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Message-ID: <20200910172514.GN87483@ziepe.ca>
Date:   Thu, 10 Sep 2020 14:25:14 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Jonathan Corbet <corbet@....net>
Cc:     Ralph Campbell <rcampbell@...dia.com>, linux-doc@...r.kernel.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Jérôme Glisse <jglisse@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] mm/doc: add usage description for migrate_vma_*()

On Thu, Sep 10, 2020 at 10:56:57AM -0600, Jonathan Corbet wrote:
> On Wed, 9 Sep 2020 14:29:56 -0700
> Ralph Campbell <rcampbell@...dia.com> wrote:
> 
> > The migrate_vma_setup(), migrate_vma_pages(), and migrate_vma_finalize()
> > API usage by device drivers is not well documented.
> > Add a description for how device drivers are expected to use it.
> > 
> > Signed-off-by: Ralph Campbell <rcampbell@...dia.com>
> > 
> > There shouldn't be any merge conflict with my previous patch which
> > touched hmm.rst but since Jonathan Corbet took my last patch, perhaps he
> > would like to take this one through his tree too.
> 
> I'm happy to take it, but it certainly needs an ack from somebody who
> understands HMM better than I do.

Ralph wrote all the in kernel tests for this API, so I think he is
well positioned to write the documentation :)

Jason