Re: [PATCH v2 17/28] null_blk: Introduce zone_append_max_sectors attribute

Hannes Reinecke
2024-03-27T07:31:27Z

On 3/25/24 05:44, Damien Le Moal wrote:
> Add the zone_append_max_sectors configfs attribute and module parameter
> to allow configuring the maximum number of 512B sectors of zone append
> operations. This attribute is meaningful only for zoned null block
> devices.
>
> If not specified, the default is unchanged and the zoned device max
> append sectors limit is set to the device max sectors limit.
> If a non 0 value is used for this attribute, which is the default,
> then native support for zone append operations is enabled.
> Setting a 0 value disables native zone append operations support to
> instead use the block layer emulation.
>
> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
> ---
> drivers/block/null_blk/main.c | 12 ++++++++++--
> drivers/block/null_blk/null_blk.h | 1 +
> drivers/block/null_blk/zoned.c | 22 +++++++++++++++++++---
> 3 files changed, 30 insertions(+), 5 deletions(-)
>
Reviewed-by: Hannes Reinecke <hare@suse.de>

Cheers,

Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
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