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block: pass a gendisk to bdev_resize_partition

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bdev_resize_partition can only operate on the whole device.  Make that clear
by passing a gendisk instead of a block_device.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210810154512.1809898-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-08-10 17:45:12 +02:00 • committed by Jens Axboe
parent 926fbb1677
commit 3d2e79894b
3 changed files with 9 additions and 9 deletions
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4
block/blk.h
View file

@ -350,8 +350,8 @@ void blk_free_ext_minor(unsigned int minor);
int bdev_add_partition(struct gendisk *disk, int partno, sector_t start, int bdev_add_partition(struct gendisk *disk, int partno, sector_t start,
sector_t length); sector_t length);
int bdev_del_partition(struct gendisk *disk, int partno); int bdev_del_partition(struct gendisk *disk, int partno);
int bdev_resize_partition(struct block_device *bdev, int partno, int bdev_resize_partition(struct gendisk *disk, int partno, sector_t start,
sector_t start, sector_t length); sector_t length);
int bio_add_hw_page(struct request_queue *q, struct bio *bio, int bio_add_hw_page(struct request_queue *q, struct bio *bio,
struct page *page, unsigned int len, unsigned int offset, struct page *page, unsigned int len, unsigned int offset,

2
block/ioctl.c
View file

@ -43,7 +43,7 @@ static int blkpg_do_ioctl(struct block_device *bdev,
return -EINVAL; return -EINVAL;
return bdev_add_partition(disk, p.pno, start, length); return bdev_add_partition(disk, p.pno, start, length);
case BLKPG_RESIZE_PARTITION: case BLKPG_RESIZE_PARTITION:
return bdev_resize_partition(bdev, p.pno, start, length); return bdev_resize_partition(disk, p.pno, start, length);
default: default:
return -EINVAL; return -EINVAL;
} }

12
block/partitions/core.c
View file

@ -497,14 +497,14 @@ out_unlock:
return ret; return ret;
} }
int bdev_resize_partition(struct block_device *bdev, int partno, int bdev_resize_partition(struct gendisk *disk, int partno, sector_t start,
sector_t start, sector_t length) sector_t length)
{ {
struct block_device *part = NULL; struct block_device *part = NULL;
int ret = -ENXIO; int ret = -ENXIO;
mutex_lock(&bdev->bd_disk->open_mutex); mutex_lock(&disk->open_mutex);
part = xa_load(&bdev->bd_disk->part_tbl, partno); part = xa_load(&disk->part_tbl, partno);
if (!part) if (!part)
goto out_unlock; goto out_unlock;
@ -513,14 +513,14 @@ int bdev_resize_partition(struct block_device *bdev, int partno,
goto out_unlock; goto out_unlock;
ret = -EBUSY; ret = -EBUSY;
if (partition_overlaps(bdev->bd_disk, start, length, partno)) if (partition_overlaps(disk, start, length, partno))
goto out_unlock; goto out_unlock;
bdev_set_nr_sectors(part, length); bdev_set_nr_sectors(part, length);
ret = 0; ret = 0;
out_unlock: out_unlock:
mutex_unlock(&bdev->bd_disk->open_mutex); mutex_unlock(&disk->open_mutex);
return ret; return ret;
} }