On 8/17/23 04:53, Bart Van Assche wrote: > Many but not all storage controllers require serialization of zoned writes. > Introduce two new request queue limit member variables related to write > serialization. 'driver_preserves_write_order' allows block drivers to > indicate that the order of write commands is preserved and hence that > serialization of writes per zone is not required. 'use_zone_write_lock' is > set by disk_set_zoned() if and only if the block device has zones and if > the block driver does not preserve the order of write requests. > > Cc: Damien Le Moal <dlemoal@xxxxxxxxxx> > Cc: Christoph Hellwig <hch@xxxxxx> > Cc: Ming Lei <ming.lei@xxxxxxxxxx> > Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx> Looks OK to me. Reviewed-by: Damien Le Moal <dlemoal@xxxxxxxxxx> -- Damien Le Moal Western Digital Research
