diff options
Diffstat (limited to 'block/partitions/core.c')
| -rw-r--r-- | block/partitions/core.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/block/partitions/core.c b/block/partitions/core.c index ada3e1e66989..4fde8e0dd7cd 100644 --- a/block/partitions/core.c +++ b/block/partitions/core.c @@ -283,7 +283,7 @@ struct device_type part_type = { }; /* - * Must be called either with bd_mutex held, before a disk can be opened or + * Must be called either with open_mutex held, before a disk can be opened or * after all disk users are gone. */ static void delete_partition(struct block_device *part) @@ -312,7 +312,7 @@ static ssize_t whole_disk_show(struct device *dev, static DEVICE_ATTR(whole_disk, 0444, whole_disk_show, NULL); /* - * Must be called either with bd_mutex held, before a disk can be opened or + * Must be called either with open_mutex held, before a disk can be opened or * after all disk users are gone. */ static struct block_device *add_partition(struct gendisk *disk, int partno, @@ -453,15 +453,15 @@ int bdev_add_partition(struct block_device *bdev, int partno, { struct block_device *part; - mutex_lock(&bdev->bd_mutex); + mutex_lock(&bdev->bd_disk->open_mutex); if (partition_overlaps(bdev->bd_disk, start, length, -1)) { - mutex_unlock(&bdev->bd_mutex); + mutex_unlock(&bdev->bd_disk->open_mutex); return -EBUSY; } part = add_partition(bdev->bd_disk, partno, start, length, ADDPART_FLAG_NONE, NULL); - mutex_unlock(&bdev->bd_mutex); + mutex_unlock(&bdev->bd_disk->open_mutex); return PTR_ERR_OR_ZERO(part); } @@ -474,8 +474,7 @@ int bdev_del_partition(struct block_device *bdev, int partno) if (!part) return -ENXIO; - mutex_lock(&part->bd_mutex); - mutex_lock_nested(&bdev->bd_mutex, 1); + mutex_lock(&bdev->bd_disk->open_mutex); ret = -EBUSY; if (part->bd_openers) @@ -484,8 +483,7 @@ int bdev_del_partition(struct block_device *bdev, int partno) delete_partition(part); ret = 0; out_unlock: - mutex_unlock(&bdev->bd_mutex); - mutex_unlock(&part->bd_mutex); + mutex_unlock(&bdev->bd_disk->open_mutex); bdput(part); return ret; } @@ -500,8 +498,7 @@ int bdev_resize_partition(struct block_device *bdev, int partno, if (!part) return -ENXIO; - mutex_lock(&part->bd_mutex); - mutex_lock_nested(&bdev->bd_mutex, 1); + mutex_lock(&bdev->bd_disk->open_mutex); ret = -EINVAL; if (start != part->bd_start_sect) goto out_unlock; @@ -514,8 +511,7 @@ int bdev_resize_partition(struct block_device *bdev, int partno, ret = 0; out_unlock: - mutex_unlock(&part->bd_mutex); - mutex_unlock(&bdev->bd_mutex); + mutex_unlock(&bdev->bd_disk->open_mutex); bdput(part); return ret; } @@ -541,7 +537,7 @@ void blk_drop_partitions(struct gendisk *disk) struct block_device *part; unsigned long idx; - lockdep_assert_held(&disk->part0->bd_mutex); + lockdep_assert_held(&disk->open_mutex); xa_for_each_start(&disk->part_tbl, idx, part, 1) { if (!bdgrab(part)) |