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block: add a bdev_max_zone_append_sectors helper

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Add a helper to check the max supported sectors for zone append based on
the block_device instead of having to poke into the block layer internal
request_queue.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220415045258.199825-16-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2022-04-15 06:52:46 +02:00 committed by Jens Axboe
parent 36d254893a
commit 2aba0d19f4
3 changed files with 8 additions and 4 deletions
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3
drivers/nvme/target/zns.c
View File

@ -34,8 +34,7 @@ static int validate_conv_zones_cb(struct blk_zone *z,
bool nvmet_bdev_zns_enable(struct nvmet_ns *ns)
{
struct request_queue *q = ns->bdev->bd_disk->queue;
u8 zasl = nvmet_zasl(queue_max_zone_append_sectors(q));
u8 zasl = nvmet_zasl(bdev_max_zone_append_sectors(ns->bdev));
struct gendisk *bd_disk = ns->bdev->bd_disk;
int ret;

3
fs/zonefs/super.c
View File

@ -678,13 +678,12 @@ static ssize_t zonefs_file_dio_append(struct kiocb *iocb, struct iov_iter *from)
struct inode *inode = file_inode(iocb->ki_filp);
struct zonefs_inode_info *zi = ZONEFS_I(inode);
struct block_device *bdev = inode->i_sb->s_bdev;
unsigned int max;
unsigned int max = bdev_max_zone_append_sectors(bdev);
struct bio *bio;
ssize_t size;
int nr_pages;
ssize_t ret;
max = queue_max_zone_append_sectors(bdev_get_queue(bdev));
max = ALIGN_DOWN(max << SECTOR_SHIFT, inode->i_sb->s_blocksize);
iov_iter_truncate(from, max);

6
include/linux/blkdev.h
View File

@ -1188,6 +1188,12 @@ static inline unsigned int queue_max_zone_append_sectors(const struct request_qu
return min(l->max_zone_append_sectors, l->max_sectors);
}
static inline unsigned int
bdev_max_zone_append_sectors(struct block_device *bdev)
{
return queue_max_zone_append_sectors(bdev_get_queue(bdev));
}
static inline unsigned queue_logical_block_size(const struct request_queue *q)
{
int retval = 512;