Re: [PATCH 19/26] block: mq-deadline: Remove support for zone write locking

Hannes Reinecke
2024-02-04T12:36:13Z

On 2/2/24 15:30, Damien Le Moal wrote:
> With the block layer generic plugging of write operations for zoned
> block devices, mq-deadline, or any other scheduler, can only ever
> see at most one write operation per zone at any time. There is thus no
> sequentiality requirements for these writes and thus no need to tightly
> control the dispatching of write requests using zone write locking.
>
> Remove all the code that implement this control in the mq-deadline
> scheduler and remove advertizing support for the
> ELEVATOR_F_ZBD_SEQ_WRITE elevator feature.
>
> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
> ---
> block/mq-deadline.c | 176 ++------------------------------------------
> 1 file changed, 6 insertions(+), 170 deletions(-)
>
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
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