Re: [PATCH v5] target: add emulate_pr backstore attr to toggle PR support

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David,

> The new emulate_pr backstore attribute allows for Persistent Reservation
> and SCSI2 RESERVE/RELEASE support to be completely disabled. This can be
> useful for scenarios such as:
> - Ensuring ATS (Compare & Write) usage on recent VMware ESXi initiators.
> - Allowing clustered (e.g. tcm-user) backends to block such requests,
>   avoiding the multi-node reservation state propagation.
>
> When explicitly disabled, PR and RESERVE/RELEASE requests receive
> Invalid Command Operation Code response sense data.

Applied to 4.21/scsi-queue. Thank you!

-- 
Martin K. Petersen	Oracle Linux Engineering



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