Re: [PATCH v9 08/10] mm: Introduce mf_dax_kill_procs() for fsdax case

To: Shiyang Ruan <ruansy.fnst@xxxxxxxxxxx>
Subject: Re: [PATCH v9 08/10] mm: Introduce mf_dax_kill_procs() for fsdax case
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Thu, 20 Jan 2022 00:55:24 -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: <20211226143439.3985960-9-ruansy.fnst@fujitsu.com>
References: <20211226143439.3985960-1-ruansy.fnst@fujitsu.com> <20211226143439.3985960-9-ruansy.fnst@fujitsu.com>

Please only build the new DAX code if CONFIG_FS_DAX is set.

References:
- [PATCH v9 00/10] fsdax: introduce fs query to support reflink
  - From: Shiyang Ruan
- [PATCH v9 08/10] mm: Introduce mf_dax_kill_procs() for fsdax case
  - From: Shiyang Ruan