linux-kernel - Re: [PATCH v3 05/15] block: Add REQ

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Date: Tue, 13 Feb 2024 07:24:27 +0100
From: Christoph Hellwig <hch@....de>
To: John Garry <john.g.garry@...cle.com>
Cc: axboe@...nel.dk, kbusch@...nel.org, hch@....de, sagi@...mberg.me,
	jejb@...ux.ibm.com, martin.petersen@...cle.com, djwong@...nel.org,
	viro@...iv.linux.org.uk, brauner@...nel.org, dchinner@...hat.com,
	jack@...e.cz, linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org,
	linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	tytso@....edu, jbongio@...gle.com, linux-scsi@...r.kernel.org,
	ming.lei@...hat.com, ojaswin@...ux.ibm.com, bvanassche@....org,
	Himanshu Madhani <himanshu.madhani@...cle.com>
Subject: Re: [PATCH v3 05/15] block: Add REQ_ATOMIC flag

On Wed, Jan 24, 2024 at 11:38:31AM +0000, John Garry wrote:
> From: Himanshu Madhani <himanshu.madhani@...cle.com>
> 
> Add flag REQ_ATOMIC, meaning an atomic operation. This should only be
> used in conjunction with REQ_OP_WRITE.
> 
> We will not add a special "request atomic write" operation, as to try to
> avoid maintenance effort for an operation which is almost the same as
> REQ_OP_WRITE.

I'd also merge this into the main atomic writes block layer patch..