Re: Snapshot target and DAX-capable devices

To: Huaisheng Ye <yehs2007@xxxxxxxx>
Subject: Re: Snapshot target and DAX-capable devices
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Wed, 12 Dec 2018 08:12:54 -0800
Cc: Jan Kara <jack@xxxxxxx>, Dave Chinner <david@xxxxxxxxxxxxx>, Mike Snitzer <snitzer@xxxxxxxxxx>, "linux-nvdimm@xxxxxxxxxxxx" <linux-nvdimm@xxxxxxxxxxxx>, "dm-devel@xxxxxxxxxx" <dm-devel@xxxxxxxxxx>, Mikulas Patocka <mpatocka@xxxxxxxxxx>, "linux-fsdevel@xxxxxxxxxxxxxxx" <linux-fsdevel@xxxxxxxxxxxxxxx>, chengnt <chengnt@xxxxxxxxxx>, yehs1 <yehs1@xxxxxxxxxx>, colyli <colyli@xxxxxxx>
In-reply-to: <167a3303a01.11a848ab768799.5161498967766415143@zoho.com>
User-agent: Mutt/1.9.2 (2017-12-15)

Does it really make sense to enhance dm-snapshot?  I thought all serious
users of snapshots had moved on to dm-thinp?

Follow-Ups:
- Re: Snapshot target and DAX-capable devices
  - From: Mike Snitzer

References:
- Re: Snapshot target and DAX-capable devices
  - From: Kani, Toshi
- Re: Snapshot target and DAX-capable devices
  - From: Jan Kara
- Re: Snapshot target and DAX-capable devices
  - From: Mike Snitzer
- Re: Snapshot target and DAX-capable devices
  - From: Jan Kara
- Re: Snapshot target and DAX-capable devices
  - From: Mike Snitzer
- Re: Snapshot target and DAX-capable devices
  - From: Jeff Moyer
- Re: Snapshot target and DAX-capable devices
  - From: Mikulas Patocka
- Re: Snapshot target and DAX-capable devices
  - From: Dave Chinner
- Re: Snapshot target and DAX-capable devices
  - From: Jan Kara
- Re: Snapshot target and DAX-capable devices
  - From: Huaisheng Ye