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authorChristoph Hellwig <hch@lst.de>2021-08-10 18:45:10 +0300
committerJens Axboe <axboe@kernel.dk>2021-08-12 19:31:35 +0300
commit7f6be3765e113e0d4b8e6b65e1074982de94377e (patch)
treebba3bfda58f09c1ffbe739fa8a06f2e2d7a98667
parenta08aa9bccdc282b5e8d133bf8c239473f057b464 (diff)
downloadlinux-7f6be3765e113e0d4b8e6b65e1074982de94377e.tar.xz
block: pass a gendisk to bdev_add_partition
bdev_add_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/20210810154512.1809898-3-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--block/blk.h4
-rw-r--r--block/ioctl.c3
-rw-r--r--block/partitions/core.c5
3 files changed, 6 insertions, 6 deletions
diff --git a/block/blk.h b/block/blk.h
index 56f33fbcde59..c0486f609978 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -347,8 +347,8 @@ void blk_free_ext_minor(unsigned int minor);
#define ADDPART_FLAG_NONE 0
#define ADDPART_FLAG_RAID 1
#define ADDPART_FLAG_WHOLEDISK 2
-int bdev_add_partition(struct block_device *bdev, int partno,
- sector_t start, sector_t length);
+int bdev_add_partition(struct gendisk *disk, int partno, sector_t start,
+ sector_t length);
int bdev_del_partition(struct block_device *bdev, int partno);
int bdev_resize_partition(struct block_device *bdev, int partno,
sector_t start, sector_t length);
diff --git a/block/ioctl.c b/block/ioctl.c
index fff161eaab42..36e0ec76b3b2 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -16,6 +16,7 @@
static int blkpg_do_ioctl(struct block_device *bdev,
struct blkpg_partition __user *upart, int op)
{
+ struct gendisk *disk = bdev->bd_disk;
struct blkpg_partition p;
long long start, length;
@@ -40,7 +41,7 @@ static int blkpg_do_ioctl(struct block_device *bdev,
/* check if partition is aligned to blocksize */
if (p.start & (bdev_logical_block_size(bdev) - 1))
return -EINVAL;
- return bdev_add_partition(bdev, p.pno, start, length);
+ return bdev_add_partition(disk, p.pno, start, length);
case BLKPG_RESIZE_PARTITION:
return bdev_resize_partition(bdev, p.pno, start, length);
default:
diff --git a/block/partitions/core.c b/block/partitions/core.c
index 5dd1cd1a163d..7b227c114297 100644
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@@ -451,11 +451,10 @@ static bool partition_overlaps(struct gendisk *disk, sector_t start,
return overlap;
}
-int bdev_add_partition(struct block_device *bdev, int partno,
- sector_t start, sector_t length)
+int bdev_add_partition(struct gendisk *disk, int partno, sector_t start,
+ sector_t length)
{
struct block_device *part;
- struct gendisk *disk = bdev->bd_disk;
int ret;
mutex_lock(&disk->open_mutex);