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authorDamien Le Moal <damien.lemoal@wdc.com>2019-09-05 18:51:35 +0900
committerJens Axboe <axboe@kernel.dk>2019-09-05 19:52:34 -0600
commitebddd2a15323856d82d22b49236604c2e0d23ab9 (patch)
tree280b8929fce9e54d26dd980a7e95e23428b859bc /drivers/scsi/sd_zbc.c
parent780d97a990cca6d3b668526fd97053f41be34c05 (diff)
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>
Diffstat (limited to 'drivers/scsi/sd_zbc.c')
-rw-r--r--drivers/scsi/sd_zbc.c2
1 files changed, 2 insertions, 0 deletions
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 */