Re: [PATCH 18/21] scsi: sd: Support reading atomic properties from block limits VPD

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To: Bart Van Assche <bvanassche@xxxxxxx>
Subject: Re: [PATCH 18/21] scsi: sd: Support reading atomic properties from block limits VPD
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Fri, 06 Oct 2023 19:48:53 -0400
Cc: John Garry <john.g.garry@xxxxxxxxxx>, axboe@xxxxxxxxx, kbusch@xxxxxxxxxx, hch@xxxxxx, sagi@xxxxxxxxxxx, jejb@xxxxxxxxxxxxx, martin.petersen@xxxxxxxxxx, djwong@xxxxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, brauner@xxxxxxxxxx, chandan.babu@xxxxxxxxxx, dchinner@xxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-nvme@xxxxxxxxxxxxxxxxxxx, linux-xfs@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, tytso@xxxxxxx, jbongio@xxxxxxxxxx, linux-api@xxxxxxxxxxxxxxx
In-reply-to: <a7a24914-4940-4a23-b439-bc8f0ad99212@acm.org> (Bart Van Assche's message of "Fri, 6 Oct 2023 10:52:40 -0700")
Organization: Oracle Corporation

Bart,

> I think the above means that it is wrong to round down the ATOMIC
> TRANSFER LENGTH GRANULARITY or the ATOMIC BOUNDARY values.

It was a deliberate design choice to facilitate supporting MAM. John
will look into relaxing the constraints.

-- 
Martin K. Petersen	Oracle Linux Engineering

References:
- [PATCH 00/21] block atomic writes
  - From: John Garry
- [PATCH 18/21] scsi: sd: Support reading atomic properties from block limits VPD
  - From: John Garry
- Re: [PATCH 18/21] scsi: sd: Support reading atomic properties from block limits VPD
  - From: Bart Van Assche
- Re: [PATCH 18/21] scsi: sd: Support reading atomic properties from block limits VPD
  - From: John Garry
- Re: [PATCH 18/21] scsi: sd: Support reading atomic properties from block limits VPD
  - From: Bart Van Assche

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