linux-kernel - Re: [RFC 0/9] block: add llseek(SEEK_HOLE/SEEK

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Message-ID: <20240405070229.GB4176@lst.de>
Date: Fri, 5 Apr 2024 09:02:29 +0200
From: Christoph Hellwig <hch@....de>
To: Stefan Hajnoczi <stefanha@...hat.com>
Cc: Christoph Hellwig <hch@....de>, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org, eblake@...hat.com,
	Alasdair Kergon <agk@...hat.com>,
	Mikulas Patocka <mpatocka@...hat.com>, dm-devel@...ts.linux.dev,
	David Teigland <teigland@...hat.com>,
	Mike Snitzer <snitzer@...nel.org>, Jens Axboe <axboe@...nel.dk>,
	Joe Thornber <ejt@...hat.com>
Subject: Re: [RFC 0/9] block: add llseek(SEEK_HOLE/SEEK_DATA) support

On Tue, Apr 02, 2024 at 09:04:46AM -0400, Stefan Hajnoczi wrote:
> Hi Christoph,
> There is a 1:1 mapping when when the Logical Block Provisioning Read
> Zeroes (LBPRZ) field is set to xx1b in the Logical Block Provisioning
> VPD page.

Yes.  NVMe also has a similar field, but ATA does not.