diff options
Diffstat (limited to 'block/partitions/core.c')
| -rw-r--r-- | block/partitions/core.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/block/partitions/core.c b/block/partitions/core.c index dc60ecf46fe6..504297bdc8bf 100644 --- a/block/partitions/core.c +++ b/block/partitions/core.c @@ -260,7 +260,8 @@ static const struct attribute_group *part_attr_groups[] = { static void part_release(struct device *dev) { - blk_free_devt(dev->devt); + if (MAJOR(dev->devt) == BLOCK_EXT_MAJOR) + blk_free_ext_minor(MINOR(dev->devt)); bdput(dev_to_bdev(dev)); } @@ -379,9 +380,15 @@ static struct block_device *add_partition(struct gendisk *disk, int partno, pdev->type = &part_type; pdev->parent = ddev; - err = blk_alloc_devt(bdev, &devt); - if (err) - goto out_put; + /* in consecutive minor range? */ + if (bdev->bd_partno < disk->minors) { + devt = MKDEV(disk->major, disk->first_minor + bdev->bd_partno); + } else { + err = blk_alloc_ext_minor(); + if (err < 0) + goto out_put; + devt = MKDEV(BLOCK_EXT_MAJOR, err); + } pdev->devt = devt; /* delay uevent until 'holders' subdir is created */ |