Re: [PATCH v2] scsi: core: Do not retry I/Os during depopulation

[Bart Van Assche]

On 1/31/25 10:44 AM, Igor Pylypiv wrote:
> Fail I/Os instead of retry to prevent user space processes from being
> blocked on the I/O completion for several minutes.
>
> Retrying I/Os during "depopulation in progress" or "depopulation restore
> in progress" results in a continuous retry loop until the depopulation
> completes or until the I/O retry loop is aborted due to a timeout by
> the scsi_cmd_runtime_exceeced().
>
> Depopulation is slow and can take 24+ hours to complete on 20+ TB HDDs.
> Most I/Os in the depopulation retry loop end up taking several minutes
> before returning the failure to user space.

Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>