Re: [PATCH v8 7/9] dax: add dax holder helper for filesystems

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To: Shiyang Ruan <ruansy.fnst@xxxxxxxxxxx>
Subject: Re: [PATCH v8 7/9] dax: add dax holder helper for filesystems
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 14 Dec 2021 07:47:50 -0800
Cc: linux-kernel@xxxxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx, nvdimm@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, djwong@xxxxxxxxxx, dan.j.williams@xxxxxxxxx, david@xxxxxxxxxxxxx, hch@xxxxxxxxxxxxx, jane.chu@xxxxxxxxxx
In-reply-to: <20211202084856.1285285-8-ruansy.fnst@fujitsu.com>
References: <20211202084856.1285285-1-ruansy.fnst@fujitsu.com> <20211202084856.1285285-8-ruansy.fnst@fujitsu.com>

On Thu, Dec 02, 2021 at 04:48:54PM +0800, Shiyang Ruan wrote:
> Add these helper functions, and export them for filesystem use.

What is the point of adding these wrappers vs just calling the
underlying functions?

Follow-Ups:
- Re: [PATCH v8 7/9] dax: add dax holder helper for filesystems
  - From: Shiyang Ruan

References:
- [RESEND PATCH v8 0/9] fsdax: introduce fs query to support reflink
  - From: Shiyang Ruan
- [PATCH v8 7/9] dax: add dax holder helper for filesystems
  - From: Shiyang Ruan

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