linux-kernel - Re: [Linux-nvdimm] [PATCH v2 00/20] libnd: non-volatile memory device support

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Message-ID: <20150507072913.GB23239@lst.de>
Date:	Thu, 7 May 2015 09:29:13 +0200
From:	Christoph Hellwig <hch@....de>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	"Elliott, Robert (Server Storage)" <Elliott@...com>,
	"linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>,
	Neil Brown <neilb@...e.de>, Dave Chinner <david@...morbit.com>,
	"H. Peter Anvin" <hpa@...or.com>, Christoph Hellwig <hch@....de>,
	"Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
	"Moore, Robert" <robert.moore@...el.com>,
	Ingo Molnar <mingo@...nel.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
	Jens Axboe <axboe@...com>, Borislav Petkov <bp@...en8.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Greg KH <gregkh@...uxfoundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andy Lutomirski <luto@...capital.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [Linux-nvdimm] [PATCH v2 00/20] libnd: non-volatile memory
	device support

On Tue, Apr 28, 2015 at 03:15:54PM -0700, Dan Williams wrote:
> > lsblk's blkdev_scsi_type_to_name() considers 4 to mean
> > SCSI_TYPE_WORM (write once read many ... used for certain optical
> > and tape drives).
> 
> Why is lsblk assuming these are scsi devices?  I'll need to go check that out.

It's a very common assumption unfortunately.  I rember fixing it in
various in-house tools at customers and stumbled over it in targetcli
recently.

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