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sd: Set ELEVATOR_F_ZBD_SEQ_WRITE for ZBC disks
Using the helper blk_queue_required_elevator_features(), set the elevator feature ELEVATOR_F_ZBD_SEQ_WRITE as required for the request queue of SCSI ZBC disks. This feature requirement can always be satisfied as the mq-deadline elevator is always selected for in-kernel compilation when CONFIG_BLK_DEV_ZONED (zoned block device support) is enabled. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -493,6 +493,8 @@ int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buf)
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blk_queue_chunk_sectors(sdkp->disk->queue,
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logical_to_sectors(sdkp->device, zone_blocks));
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blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, sdkp->disk->queue);
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blk_queue_required_elevator_features(sdkp->disk->queue,
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ELEVATOR_F_ZBD_SEQ_WRITE);
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nr_zones = round_up(sdkp->capacity, zone_blocks) >> ilog2(zone_blocks);
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/* READ16/WRITE16 is mandatory for ZBC disks */
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