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Date: Thu, 25 Jul 2024 15:00:08 +0200
From: Christoph Hellwig <hch@lst.de>
To: Wouter Verhelst <w@uter.be>
Subject: Re: [PATCH 14/26] block: move the nonrot flag to queue_limits
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On Thu, Jul 25, 2024 at 01:35:46PM +0200, Wouter Verhelst wrote:
> NBD actually exports a flag for rotational devices; it's defined in
> nbd.h in the NBD userland source as
> 
> #define NBD_FLAG_ROTATIONAL     (1 << 4)        /* Use elevator algorithm - rotational media */
> 
> which is passed in the same flags field which also contains the
> NBD_FLAG_SEND_FLUSH and NBD_FLAG_SEND_FUA flags.
> 
> Perhaps we might want to look at that flag and set the device to
> rotational if it is specified?

Yes, that sounds good.  Can you send a patch?