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null_blk: pass queue_limits to blk_mq_alloc_disk

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Pass the queue limits directly to blk_mq_alloc_disk instead of
setting them one at a time.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Tested-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20240220093248.3290292-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2024-02-20 10:32:48 +01:00 committed by Jens Axboe
parent 0a39e550c1
commit e440626b1c
3 changed files with 29 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
drivers/block/null_blk/main.c
View File

@ -1694,7 +1694,7 @@ static void null_del_dev(struct nullb *nullb)
dev->nullb = NULL;
}
static void null_config_discard(struct nullb *nullb)
static void null_config_discard(struct nullb *nullb, struct queue_limits *lim)
{
if (nullb->dev->discard == false)
return;
@ -1711,7 +1711,7 @@ static void null_config_discard(struct nullb *nullb)
return;
}
blk_queue_max_discard_sectors(nullb->q, UINT_MAX >> 9);
lim->max_hw_discard_sectors = UINT_MAX >> 9;
}
static const struct block_device_operations null_ops = {
@ -1869,6 +1869,12 @@ static bool null_setup_fault(void)
static int null_add_dev(struct nullb_device *dev)
{
struct queue_limits lim = {
.logical_block_size = dev->blocksize,
.physical_block_size = dev->blocksize,
.max_hw_sectors = dev->max_sectors,
};
struct nullb *nullb;
int rv;
@ -1894,10 +1900,19 @@ static int null_add_dev(struct nullb_device *dev)
if (rv)
goto out_cleanup_queues;
nullb->disk = blk_mq_alloc_disk(nullb->tag_set, NULL, nullb);
if (dev->virt_boundary)
lim.virt_boundary_mask = PAGE_SIZE - 1;
null_config_discard(nullb, &lim);
if (dev->zoned) {
rv = null_init_zoned_dev(dev, &lim);
if (rv)
goto out_cleanup_tags;
}
nullb->disk = blk_mq_alloc_disk(nullb->tag_set, &lim, nullb);
if (IS_ERR(nullb->disk)) {
rv = PTR_ERR(nullb->disk);
goto out_cleanup_tags;
goto out_cleanup_zone;
}
nullb->q = nullb->disk->queue;
@ -1911,12 +1926,6 @@ static int null_add_dev(struct nullb_device *dev)
blk_queue_write_cache(nullb->q, true, true);
}
if (dev->zoned) {
rv = null_init_zoned_dev(dev, nullb->q);
if (rv)
goto out_cleanup_disk;
}
nullb->q->queuedata = nullb;
blk_queue_flag_set(QUEUE_FLAG_NONROT, nullb->q);
@ -1924,22 +1933,12 @@ static int null_add_dev(struct nullb_device *dev)
rv = ida_alloc(&nullb_indexes, GFP_KERNEL);
if (rv < 0) {
mutex_unlock(&lock);
goto out_cleanup_zone;
goto out_cleanup_disk;
}
nullb->index = rv;
dev->index = rv;
mutex_unlock(&lock);
blk_queue_logical_block_size(nullb->q, dev->blocksize);
blk_queue_physical_block_size(nullb->q, dev->blocksize);
if (dev->max_sectors)
blk_queue_max_hw_sectors(nullb->q, dev->max_sectors);
if (dev->virt_boundary)
blk_queue_virt_boundary(nullb->q, PAGE_SIZE - 1);
null_config_discard(nullb);
if (config_item_name(&dev->group.cg_item)) {
/* Use configfs dir name as the device name */
snprintf(nullb->disk_name, sizeof(nullb->disk_name),

4
drivers/block/null_blk/null_blk.h
View File

@ -131,7 +131,7 @@ blk_status_t null_process_cmd(struct nullb_cmd *cmd, enum req_op op,
sector_t sector, unsigned int nr_sectors);
#ifdef CONFIG_BLK_DEV_ZONED
int null_init_zoned_dev(struct nullb_device *dev, struct request_queue *q);
int null_init_zoned_dev(struct nullb_device *dev, struct queue_limits *lim);
int null_register_zoned_dev(struct nullb *nullb);
void null_free_zoned_dev(struct nullb_device *dev);
int null_report_zones(struct gendisk *disk, sector_t sector,
@ -144,7 +144,7 @@ ssize_t zone_cond_store(struct nullb_device *dev, const char *page,
size_t count, enum blk_zone_cond cond);
#else
static inline int null_init_zoned_dev(struct nullb_device *dev,
struct request_queue *q)
struct queue_limits *lim)
{
pr_err("CONFIG_BLK_DEV_ZONED not enabled\n");
return -EINVAL;

15
drivers/block/null_blk/zoned.c
View File

@ -58,7 +58,8 @@ static inline void null_unlock_zone(struct nullb_device *dev,
mutex_unlock(&zone->mutex);
}
int null_init_zoned_dev(struct nullb_device *dev, struct request_queue *q)
int null_init_zoned_dev(struct nullb_device *dev,
struct queue_limits *lim)
{
sector_t dev_capacity_sects, zone_capacity_sects;
struct nullb_zone *zone;
@ -151,23 +152,21 @@ int null_init_zoned_dev(struct nullb_device *dev, struct request_queue *q)
sector += dev->zone_size_sects;
}
lim->zoned = true;
lim->chunk_sectors = dev->zone_size_sects;
lim->max_zone_append_sectors = dev->zone_size_sects;
lim->max_open_zones = dev->zone_max_open;
lim->max_active_zones = dev->zone_max_active;
return 0;
}
int null_register_zoned_dev(struct nullb *nullb)
{
struct nullb_device *dev = nullb->dev;
struct request_queue *q = nullb->q;
disk_set_zoned(nullb->disk);
blk_queue_flag_set(QUEUE_FLAG_ZONE_RESETALL, q);
blk_queue_required_elevator_features(q, ELEVATOR_F_ZBD_SEQ_WRITE);
blk_queue_chunk_sectors(q, dev->zone_size_sects);
nullb->disk->nr_zones = bdev_nr_zones(nullb->disk->part0);
blk_queue_max_zone_append_sectors(q, dev->zone_size_sects);
disk_set_max_open_zones(nullb->disk, dev->zone_max_open);
disk_set_max_active_zones(nullb->disk, dev->zone_max_active);
return blk_revalidate_disk_zones(nullb->disk, NULL);
}