Re: [PATCH] cifs: add ioctl for SRV_COPYCHUNK range

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To: Ronnie Sahlberg <lsahlber@xxxxxxxxxx>
Subject: Re: [PATCH] cifs: add ioctl for SRV_COPYCHUNK range
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 4 Sep 2018 07:11:11 -0700
Cc: linux-cifs <linux-cifs@xxxxxxxxxxxxxxx>, Steve French <smfrench@xxxxxxxxx>
In-reply-to: <20180903065733.28037-1-lsahlber@redhat.com>
References: <20180903065733.28037-1-lsahlber@redhat.com>
User-agent: Mutt/1.9.2 (2017-12-15)

On Mon, Sep 03, 2018 at 04:57:33PM +1000, Ronnie Sahlberg wrote:
> Add a new ioctl for COPYCHUNK that copies a region. The existing
> COPYCHUNK can only be used to copy a whole file.

Please don't add magic ioctls and reuse the existing kernel copy
offload functionality.

Follow-Ups:
- Re: [PATCH] cifs: add ioctl for SRV_COPYCHUNK range
  - From: Steve French

References:
- [PATCH] cifs: add ioctl for SRV_COPYCHUNK range
  - From: Ronnie Sahlberg

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