On 8/9/23 18:36, Damien Le Moal wrote:
On 8/10/23 05:23, Bart Van Assche wrote:+static bool dd_use_zone_write_locking(struct request_queue *q) +{ + return q->limits.use_zone_write_lock && blk_queue_is_zoned(q);use_zone_write_lock should be true ONLY if the queue is zoned. So the "&& blk_queue_is_zoned(q)" seems unnecessary to me. This little helper could be moved to be generic in blkdev.h too.
Hi Damien, use_zone_write_lock should be set by the block driver (e.g. a SCSI LLD) before I/O starts. The zone model information is retrieved by submitting I/O. It is not clear to me how to set use_zone_write_lock to true only for zoned block devices before I/O starts since I/O is required to retrieve information about the zone model. Thanks, Bart.
