#define ADDPART_FLAG_NONE 0
#define ADDPART_FLAG_RAID 1
#define ADDPART_FLAG_WHOLEDISK 2
-void delete_partition(struct block_device *part);
int bdev_add_partition(struct block_device *bdev, int partno,
sector_t start, sector_t length);
int bdev_del_partition(struct block_device *bdev, int partno);
*/
void del_gendisk(struct gendisk *disk)
{
- struct disk_part_iter piter;
- struct block_device *part;
-
might_sleep();
if (WARN_ON_ONCE(!disk->queue))
* disk is marked as dead (GENHD_FL_UP cleared).
*/
down_write(&bdev_lookup_sem);
-
- /* invalidate stuff */
- disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);
- while ((part = disk_part_iter_next(&piter)))
- delete_partition(part);
- disk_part_iter_exit(&piter);
-
+ blk_drop_partitions(disk);
fsync_bdev(disk->part0);
__invalidate_device(disk->part0, true);
* Must be called either with bd_mutex held, before a disk can be opened or
* after all disk users are gone.
*/
-void delete_partition(struct block_device *part)
+static void delete_partition(struct block_device *part)
{
fsync_bdev(part);
__invalidate_device(part, true);
}
}
-int blk_drop_partitions(struct block_device *bdev)
+void blk_drop_partitions(struct gendisk *disk)
{
struct disk_part_iter piter;
struct block_device *part;
- if (bdev->bd_part_count)
- return -EBUSY;
-
- sync_blockdev(bdev);
- invalidate_bdev(bdev);
-
- disk_part_iter_init(&piter, bdev->bd_disk, DISK_PITER_INCL_EMPTY);
+ disk_part_iter_init(&piter, disk, DISK_PITER_INCL_EMPTY);
while ((part = disk_part_iter_next(&piter)))
delete_partition(part);
disk_part_iter_exit(&piter);
-
- return 0;
}
static bool blk_add_partition(struct gendisk *disk, struct block_device *bdev,
clear_bit(GD_NEED_PART_SCAN, &bdev->bd_disk->state);
rescan:
- ret = blk_drop_partitions(bdev);
- if (ret)
- return ret;
+ if (bdev->bd_part_count)
+ return -EBUSY;
+ sync_blockdev(bdev);
+ invalidate_bdev(bdev);
+ blk_drop_partitions(disk);
/*
* Historically we only set the capacity to zero for devices that
int bdev_disk_changed(struct block_device *bdev, bool invalidate);
int blk_add_partitions(struct gendisk *disk, struct block_device *bdev);
-int blk_drop_partitions(struct block_device *bdev);
+void blk_drop_partitions(struct gendisk *disk);
extern struct gendisk *__alloc_disk_node(int minors, int node_id);
extern void put_disk(struct gendisk *disk);