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| author |   Damien Le Moal <damien.lemoal@wdc.com> | 2019-09-05 18:51:34 +0900 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2019-09-05 19:52:34 -0600 |
| commit | 780d97a990cca6d3b668526fd97053f41be34c05 (patch) | |
| tree | e961906a55b7df76cb01a574816c6ef53365df89 /drivers/block | |
| parent | block: Delay default elevator initialization (diff) | |
| download | linux-dev-780d97a990cca6d3b668526fd97053f41be34c05.tar.xz linux-dev-780d97a990cca6d3b668526fd97053f41be34c05.zip | |
block: Set ELEVATOR_F_ZBD_SEQ_WRITE for nullblk zoned 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 null_blk devices created with zoned mode enabled.
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/block')
| -rw-r--r-- | drivers/block/null_blk_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c index b26a178d064d..b29b273690b0 100644 --- a/drivers/block/null_blk_main.c +++ b/drivers/block/null_blk_main.c @@ -1695,6 +1695,8 @@ static int null_add_dev(struct nullb_device *dev) blk_queue_chunk_sectors(nullb->q, dev->zone_size_sects); nullb->q->limits.zoned = BLK_ZONED_HM; blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, nullb->q); + blk_queue_required_elevator_features(nullb->q, + ELEVATOR_F_ZBD_SEQ_WRITE); } nullb->q->queuedata = nullb; |