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| author |   Damien Le Moal <damien.lemoal@wdc.com> | 2019-09-05 18:51:35 +0900 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2019-09-05 19:52:34 -0600 |
| commit | ebddd2a15323856d82d22b49236604c2e0d23ab9 (patch) | |
| tree | 280b8929fce9e54d26dd980a7e95e23428b859bc /drivers/scsi/sd_zbc.c | |
| parent | block: Set ELEVATOR_F_ZBD_SEQ_WRITE for nullblk zoned disks (diff) | |
| download | linux-dev-ebddd2a15323856d82d22b49236604c2e0d23ab9.tar.xz linux-dev-ebddd2a15323856d82d22b49236604c2e0d23ab9.zip | |
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.c | 2 |
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 */ |