| Message ID | 20190828022947.23364-8-damien.lemoal@wdc.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Elevator cleanups and improvements | expand |
On Wed, Aug 28, 2019 at 11:29:47AM +0900, Damien Le Moal wrote: > 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. > > Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> Maybe s/scsi/sd/ in the subject? Otherwise looks good: Reviewed-by: Christoph Hellwig <hch@lst.de>
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c index 367614f0e34f..de4019dc0f0b 100644 --- a/drivers/scsi/sd_zbc.c +++ b/drivers/scsi/sd_zbc.c @@ -493,6 +493,8 @@ int sd_zbc_read_zones(struct scsi_disk *sdkp, unsigned char *buf) blk_queue_chunk_sectors(sdkp->disk->queue, logical_to_sectors(sdkp->device, zone_blocks)); blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, sdkp->disk->queue); + blk_queue_required_elevator_features(sdkp->disk->queue, + ELEVATOR_F_ZBD_SEQ_WRITE); nr_zones = round_up(sdkp->capacity, zone_blocks) >> ilog2(zone_blocks); /* READ16/WRITE16 is mandatory 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. Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com> --- drivers/scsi/sd_zbc.c | 2 ++ 1 file changed, 2 insertions(+)