diff options
author | Christoph Hellwig <hch@lst.de> | 2024-02-15 08:02:59 +0100 |
---|---|---|
committer | Jens Axboe <axboe@kernel.dk> | 2024-02-20 00:59:32 +0100 |
commit | 494ea040bcb5f4cc78c37dc53c7915752c24f739 (patch) | |
tree | df9758a0d8d5df082fd783eab9dab161340bd727 /drivers/block/ublk_drv.c | |
parent | scm_blk: pass queue_limits to blk_mq_alloc_disk (diff) | |
download | linux-494ea040bcb5f4cc78c37dc53c7915752c24f739.tar.xz linux-494ea040bcb5f4cc78c37dc53c7915752c24f739.zip |
ublk: pass queue_limits to blk_mq_alloc_disk
Pass the limits ublk imposes directly to blk_mq_alloc_disk instead of
setting them one at a time.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240215070300.2200308-17-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to '')
-rw-r--r-- | drivers/block/ublk_drv.c | 90 |
1 files changed, 41 insertions, 49 deletions
diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index c5b655270798..01afe90a47ac 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -246,21 +246,12 @@ static int ublk_dev_param_zoned_validate(const struct ublk_device *ub) return 0; } -static int ublk_dev_param_zoned_apply(struct ublk_device *ub) +static void ublk_dev_param_zoned_apply(struct ublk_device *ub) { - const struct ublk_param_zoned *p = &ub->params.zoned; - - disk_set_zoned(ub->ub_disk); blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, ub->ub_disk->queue); blk_queue_required_elevator_features(ub->ub_disk->queue, ELEVATOR_F_ZBD_SEQ_WRITE); - disk_set_max_active_zones(ub->ub_disk, p->max_active_zones); - disk_set_max_open_zones(ub->ub_disk, p->max_open_zones); - blk_queue_max_zone_append_sectors(ub->ub_disk->queue, p->max_zone_append_sectors); - ub->ub_disk->nr_zones = ublk_get_nr_zones(ub); - - return 0; } /* Based on virtblk_alloc_report_buffer */ @@ -432,9 +423,8 @@ static int ublk_dev_param_zoned_validate(const struct ublk_device *ub) return -EOPNOTSUPP; } -static int ublk_dev_param_zoned_apply(struct ublk_device *ub) +static void ublk_dev_param_zoned_apply(struct ublk_device *ub) { - return -EOPNOTSUPP; } static int ublk_revalidate_disk_zones(struct ublk_device *ub) @@ -498,11 +488,6 @@ static void ublk_dev_param_basic_apply(struct ublk_device *ub) struct request_queue *q = ub->ub_disk->queue; const struct ublk_param_basic *p = &ub->params.basic; - blk_queue_logical_block_size(q, 1 << p->logical_bs_shift); - blk_queue_physical_block_size(q, 1 << p->physical_bs_shift); - blk_queue_io_min(q, 1 << p->io_min_shift); - blk_queue_io_opt(q, 1 << p->io_opt_shift); - blk_queue_write_cache(q, p->attrs & UBLK_ATTR_VOLATILE_CACHE, p->attrs & UBLK_ATTR_FUA); if (p->attrs & UBLK_ATTR_ROTATIONAL) @@ -510,29 +495,12 @@ static void ublk_dev_param_basic_apply(struct ublk_device *ub) else blk_queue_flag_set(QUEUE_FLAG_NONROT, q); - blk_queue_max_hw_sectors(q, p->max_sectors); - blk_queue_chunk_sectors(q, p->chunk_sectors); - blk_queue_virt_boundary(q, p->virt_boundary_mask); - if (p->attrs & UBLK_ATTR_READ_ONLY) set_disk_ro(ub->ub_disk, true); set_capacity(ub->ub_disk, p->dev_sectors); } -static void ublk_dev_param_discard_apply(struct ublk_device *ub) -{ - struct request_queue *q = ub->ub_disk->queue; - const struct ublk_param_discard *p = &ub->params.discard; - - q->limits.discard_alignment = p->discard_alignment; - q->limits.discard_granularity = p->discard_granularity; - blk_queue_max_discard_sectors(q, p->max_discard_sectors); - blk_queue_max_write_zeroes_sectors(q, - p->max_write_zeroes_sectors); - blk_queue_max_discard_segments(q, p->max_discard_segments); -} - static int ublk_validate_params(const struct ublk_device *ub) { /* basic param is the only one which must be set */ @@ -576,20 +544,12 @@ static int ublk_validate_params(const struct ublk_device *ub) return 0; } -static int ublk_apply_params(struct ublk_device *ub) +static void ublk_apply_params(struct ublk_device *ub) { - if (!(ub->params.types & UBLK_PARAM_TYPE_BASIC)) - return -EINVAL; - ublk_dev_param_basic_apply(ub); - if (ub->params.types & UBLK_PARAM_TYPE_DISCARD) - ublk_dev_param_discard_apply(ub); - if (ub->params.types & UBLK_PARAM_TYPE_ZONED) - return ublk_dev_param_zoned_apply(ub); - - return 0; + ublk_dev_param_zoned_apply(ub); } static inline bool ublk_support_user_copy(const struct ublk_queue *ubq) @@ -2205,12 +2165,47 @@ static struct ublk_device *ublk_get_device_from_id(int idx) static int ublk_ctrl_start_dev(struct ublk_device *ub, struct io_uring_cmd *cmd) { const struct ublksrv_ctrl_cmd *header = io_uring_sqe_cmd(cmd->sqe); + const struct ublk_param_basic *p = &ub->params.basic; int ublksrv_pid = (int)header->data[0]; + struct queue_limits lim = { + .logical_block_size = 1 << p->logical_bs_shift, + .physical_block_size = 1 << p->physical_bs_shift, + .io_min = 1 << p->io_min_shift, + .io_opt = 1 << p->io_opt_shift, + .max_hw_sectors = p->max_sectors, + .chunk_sectors = p->chunk_sectors, + .virt_boundary_mask = p->virt_boundary_mask, + + }; struct gendisk *disk; int ret = -EINVAL; if (ublksrv_pid <= 0) return -EINVAL; + if (!(ub->params.types & UBLK_PARAM_TYPE_BASIC)) + return -EINVAL; + + if (ub->params.types & UBLK_PARAM_TYPE_DISCARD) { + const struct ublk_param_discard *pd = &ub->params.discard; + + lim.discard_alignment = pd->discard_alignment; + lim.discard_granularity = pd->discard_granularity; + lim.max_hw_discard_sectors = pd->max_discard_sectors; + lim.max_write_zeroes_sectors = pd->max_write_zeroes_sectors; + lim.max_discard_segments = pd->max_discard_segments; + } + + if (ub->params.types & UBLK_PARAM_TYPE_ZONED) { + const struct ublk_param_zoned *p = &ub->params.zoned; + + if (!IS_ENABLED(CONFIG_BLK_DEV_ZONED)) + return -EOPNOTSUPP; + + lim.zoned = true; + lim.max_active_zones = p->max_active_zones; + lim.max_open_zones = p->max_open_zones; + lim.max_zone_append_sectors = p->max_zone_append_sectors; + } if (wait_for_completion_interruptible(&ub->completion) != 0) return -EINTR; @@ -2222,7 +2217,7 @@ static int ublk_ctrl_start_dev(struct ublk_device *ub, struct io_uring_cmd *cmd) goto out_unlock; } - disk = blk_mq_alloc_disk(&ub->tag_set, NULL, NULL); + disk = blk_mq_alloc_disk(&ub->tag_set, &lim, NULL); if (IS_ERR(disk)) { ret = PTR_ERR(disk); goto out_unlock; @@ -2234,9 +2229,7 @@ static int ublk_ctrl_start_dev(struct ublk_device *ub, struct io_uring_cmd *cmd) ub->dev_info.ublksrv_pid = ublksrv_pid; ub->ub_disk = disk; - ret = ublk_apply_params(ub); - if (ret) - goto out_put_disk; + ublk_apply_params(ub); /* don't probe partitions if any one ubq daemon is un-trusted */ if (ub->nr_privileged_daemon != ub->nr_queues_ready) @@ -2262,7 +2255,6 @@ out_put_cdev: ub->dev_info.state = UBLK_S_DEV_DEAD; ublk_put_device(ub); } -out_put_disk: if (ret) put_disk(disk); out_unlock: |