linux-kernel - Re: [Patch v9 10/10] nvme: Atomic write support

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Message-ID: <ZnSS0Y0AFqQg-7lm@kbusch-mbp.dhcp.thefacebook.com>
Date: Thu, 20 Jun 2024 14:36:33 -0600
From: Keith Busch <kbusch@...nel.org>
To: John Garry <john.g.garry@...cle.com>
Cc: axboe@...nel.dk, hch@....de, sagi@...mberg.me, jejb@...ux.ibm.com,
	martin.petersen@...cle.com, viro@...iv.linux.org.uk,
	brauner@...nel.org, dchinner@...hat.com, jack@...e.cz,
	djwong@...nel.org, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org,
	linux-fsdevel@...r.kernel.org, tytso@....edu, jbongio@...gle.com,
	linux-scsi@...r.kernel.org, ojaswin@...ux.ibm.com,
	linux-aio@...ck.org, linux-btrfs@...r.kernel.org,
	io-uring@...r.kernel.org, nilay@...ux.ibm.com,
	ritesh.list@...il.com, willy@...radead.org, agk@...hat.com,
	snitzer@...nel.org, mpatocka@...hat.com, dm-devel@...ts.linux.dev,
	hare@...e.de, Alan Adamson <alan.adamson@...cle.com>
Subject: Re: [Patch v9 10/10] nvme: Atomic write support

On Thu, Jun 20, 2024 at 12:53:59PM +0000, John Garry wrote:
> From: Alan Adamson <alan.adamson@...cle.com>
> 
> Add support to set block layer request_queue atomic write limits. The
> limits will be derived from either the namespace or controller atomic
> parameters.
> 
> NVMe atomic-related parameters are grouped into "normal" and "power-fail"
> (or PF) class of parameter. For atomic write support, only PF parameters
> are of interest. The "normal" parameters are concerned with racing reads
> and writes (which also applies to PF). See NVM Command Set Specification
> Revision 1.0d section 2.1.4 for reference.

Looks good.

Reviewed-by: Keith Busch <kbusch@...nel.org>