linux-kernel - Re: dev_pagemap related cleanups v2

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Date:   Tue, 18 Jun 2019 12:47:10 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     Christoph Hellwig <hch@....de>
Cc:     Jérôme Glisse <jglisse@...hat.com>,
        Jason Gunthorpe <jgg@...lanox.com>,
        Ben Skeggs <bskeggs@...hat.com>, Linux MM <linux-mm@...ck.org>,
        nouveau@...ts.freedesktop.org,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>,
        linux-nvdimm <linux-nvdimm@...ts.01.org>,
        linux-pci@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: dev_pagemap related cleanups v2

On Mon, Jun 17, 2019 at 5:27 AM Christoph Hellwig <hch@....de> wrote:
>
> Hi Dan, Jérôme and Jason,
>
> below is a series that cleans up the dev_pagemap interface so that
> it is more easily usable, which removes the need to wrap it in hmm
> and thus allowing to kill a lot of code
>
> Note: this series is on top of the rdma/hmm branch + the dev_pagemap
> releas fix series from Dan that went into 5.2-rc5.
>
> Git tree:
>
>     git://git.infradead.org/users/hch/misc.git hmm-devmem-cleanup.2
>
> Gitweb:
>
>     http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/hmm-devmem-cleanup.2
>
> Changes since v1:
>  - rebase
>  - also switch p2pdma to the internal refcount
>  - add type checking for pgmap->type
>  - rename the migrate method to migrate_to_ram
>  - cleanup the altmap_valid flag
>  - various tidbits from the reviews

Attached is my incremental fixups on top of this series, with those
integrated you can add:

Tested-by: Dan Williams <dan.j.williams@...el.com>

...to the patches that touch kernel/memremap.c, drivers/dax, and drivers/nvdimm.

You can also add:

Reviewed-by: Dan Williams <dan.j.williams@...el.com>

...for the series.

View attachment "incremental.diff" of type "text/x-patch" (5128 bytes)