Re: [RFC 0/9] block: add llseek(SEEK_HOLE/SEEK_DATA) support

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Subject: Re: [RFC 0/9] block: add llseek(SEEK_HOLE/SEEK_DATA) support
From: Christoph Hellwig <hch@xxxxxx>
Date: Fri, 5 Apr 2024 09:02:29 +0200
Cc: Christoph Hellwig <hch@xxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, eblake@xxxxxxxxxx, Alasdair Kergon <agk@xxxxxxxxxx>, Mikulas Patocka <mpatocka@xxxxxxxxxx>, dm-devel@xxxxxxxxxxxxxxx, David Teigland <teigland@xxxxxxxxxx>, Mike Snitzer <snitzer@xxxxxxxxxx>, Jens Axboe <axboe@xxxxxxxxx>, Joe Thornber <ejt@xxxxxxxxxx>
In-reply-to: <20240402130446.GA2496428@fedora>
References: <20240328203910.2370087-1-stefanha@redhat.com> <20240402122617.GA30720@lst.de> <20240402130446.GA2496428@fedora>
User-agent: Mutt/1.5.17 (2007-11-01)

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.

References:
- [RFC 0/9] block: add llseek(SEEK_HOLE/SEEK_DATA) support
  - From: Stefan Hajnoczi
- Re: [RFC 0/9] block: add llseek(SEEK_HOLE/SEEK_DATA) support
  - From: Christoph Hellwig
- Re: [RFC 0/9] block: add llseek(SEEK_HOLE/SEEK_DATA) support
  - From: Stefan Hajnoczi

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