On 08/07/2020 16:06, John Garry wrote:
> On 08/07/2020 13:27, Ming Lei wrote:
>> k;
>> - } else if (ret == BLK_STS_ZONE_RESOURCE) {
>> + case BLK_STS_RESOURCE:
>> + case BLK_STS_DEV_RESOURCE:
>> + blk_mq_handle_dev_resource(rq, list);
>> + goto out;
>> + case BLK_STS_ZONE_RESOURCE:
>> /*
>> * Move the request to zone_list and keep going through
>> * the dispatch list to find more requests the drive can
>
> question not on this patch specifically: is this supposed to be
> "driver", and not "drive"? "driver" is mentioned earlier in the function
No it's drive, the sole purpose of BLK_STS_ZONE_RESOURCE is the apply some back
pressure for IO submitters to a SMR disk and the zone-append emulation it uses.
See drivers/scsi/sd_zbc.c for details.
