linux-ext4 - Re: [PATCH 02/11] dax: remove CONFIG_DAX

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Date:   Wed, 27 Oct 2021 13:54:25 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     Christoph Hellwig <hch@....de>
Cc:     Mike Snitzer <snitzer@...hat.com>, Ira Weiny <ira.weiny@...el.com>,
        device-mapper development <dm-devel@...hat.com>,
        linux-xfs <linux-xfs@...r.kernel.org>,
        Linux NVDIMM <nvdimm@...ts.linux.dev>,
        linux-s390 <linux-s390@...r.kernel.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        linux-erofs@...ts.ozlabs.org,
        linux-ext4 <linux-ext4@...r.kernel.org>,
        virtualization@...ts.linux-foundation.org
Subject: Re: [PATCH 02/11] dax: remove CONFIG_DAX_DRIVER

On Sun, Oct 17, 2021 at 9:41 PM Christoph Hellwig <hch@....de> wrote:
>
> CONFIG_DAX_DRIVER only selects CONFIG_DAX now, so remove it.

Looks good, I don't think an s390 ack is needed for this one.

> Signed-off-by: Christoph Hellwig <hch@....de>
> ---
>  drivers/dax/Kconfig        | 4 ----
>  drivers/nvdimm/Kconfig     | 2 +-
>  drivers/s390/block/Kconfig | 2 +-
>  fs/fuse/Kconfig            | 2 +-
>  4 files changed, 3 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/dax/Kconfig b/drivers/dax/Kconfig
> index d2834c2cfa10d..954ab14ba7778 100644
> --- a/drivers/dax/Kconfig
> +++ b/drivers/dax/Kconfig
> @@ -1,8 +1,4 @@
>  # SPDX-License-Identifier: GPL-2.0-only
> -config DAX_DRIVER
> -       select DAX
> -       bool
> -
>  menuconfig DAX
>         tristate "DAX: direct access to differentiated memory"
>         select SRCU
> diff --git a/drivers/nvdimm/Kconfig b/drivers/nvdimm/Kconfig
> index b7d1eb38b27d4..347fe7afa5830 100644
> --- a/drivers/nvdimm/Kconfig
> +++ b/drivers/nvdimm/Kconfig
> @@ -22,7 +22,7 @@ if LIBNVDIMM
>  config BLK_DEV_PMEM
>         tristate "PMEM: Persistent memory block device support"
>         default LIBNVDIMM
> -       select DAX_DRIVER
> +       select DAX
>         select ND_BTT if BTT
>         select ND_PFN if NVDIMM_PFN
>         help
> diff --git a/drivers/s390/block/Kconfig b/drivers/s390/block/Kconfig
> index d0416dbd0cd81..e3710a762abae 100644
> --- a/drivers/s390/block/Kconfig
> +++ b/drivers/s390/block/Kconfig
> @@ -5,7 +5,7 @@ comment "S/390 block device drivers"
>  config DCSSBLK
>         def_tristate m
>         select FS_DAX_LIMITED
> -       select DAX_DRIVER
> +       select DAX
>         prompt "DCSSBLK support"
>         depends on S390 && BLOCK
>         help
> diff --git a/fs/fuse/Kconfig b/fs/fuse/Kconfig
> index 40ce9a1c12e5d..038ed0b9aaa5d 100644
> --- a/fs/fuse/Kconfig
> +++ b/fs/fuse/Kconfig
> @@ -45,7 +45,7 @@ config FUSE_DAX
>         select INTERVAL_TREE
>         depends on VIRTIO_FS
>         depends on FS_DAX
> -       depends on DAX_DRIVER
> +       depends on DAX
>         help
>           This allows bypassing guest page cache and allows mapping host page
>           cache directly in guest address space.
> --
> 2.30.2
>