[PATCH v3 05/15] block: Add REQ_ATOMIC flag

[Christoph Hellwig]

On Wed, Jan 24, 2024 at 11:38:31AM +0000, John Garry wrote:
> From: Himanshu Madhani <himanshu.madhani at oracle.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..