On 9/24/17 16:59, Christoph Hellwig wrote:
>> + * Zoned block device information for mq I/O schedulers.
>> + * Set by low level device driver (stacking driver may not set this).
>> + */
>> +unsigned intnr_zones;
>> +unsigned long *seq_zones;
>
> Might be worth explaining
> + * Zoned block device information for mq I/O schedulers.
> + * Set by low level device driver (stacking driver may not set this).
> + */
> + unsigned intnr_zones;
> + unsigned long *seq_zones;
Might be worth explaining the seq_zones is a bit bitmap to check
if a
Components relying only on the requeuest_queue structure for accessing
block devices (e.g. I/O schedulers) have a limited knowledged of the
device characteristics. In particular, the device capacity cannot be
easily discovered, which for a zoned block device also result in the
inability to easily
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