Commit 8328eb28 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

block: remove the disk argument to delete_partition 



We can trivially derive the gendisk from the hd_struct.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent f93af2a4

block/blk.h

+1 −1
Original line number Diff line number Diff line
@@ -361,7 +361,7 @@ char *disk_name(struct gendisk *hd, int partno, char *buf); 
#define ADDPART_FLAG_NONE	0

#define ADDPART_FLAG_RAID	1

#define ADDPART_FLAG_WHOLEDISK	2

void delete_partition(struct gendisk *disk, struct hd_struct *part);

void delete_partition(struct hd_struct *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);

block/genhd.c

+1 −1
Original line number Diff line number Diff line
@@ -913,7 +913,7 @@ void del_gendisk(struct gendisk *disk) 
			     DISK_PITER_INCL_EMPTY | DISK_PITER_REVERSE);

	while ((part = disk_part_iter_next(&piter))) {

		invalidate_partition(disk, part->partno);

		delete_partition(disk, part);

		delete_partition(part);

	}

	disk_part_iter_exit(&piter);

block/partitions/core.c

+5 −4
Original line number Diff line number Diff line
@@ -324,8 +324,9 @@ int hd_ref_init(struct hd_struct *part) 
 * 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 gendisk *disk, struct hd_struct *part)

void delete_partition(struct hd_struct *part)

{

	struct gendisk *disk = part_to_disk(part);

	struct disk_part_tbl *ptbl =

		rcu_dereference_protected(disk->part_tbl, 1);
@@ -333,7 +334,7 @@ void delete_partition(struct gendisk *disk, struct hd_struct *part) 
	 * ->part_tbl is referenced in this part's release handler, so

	 *  we have to hold the disk device

	 */

	get_device(disk_to_dev(part_to_disk(part)));

	get_device(disk_to_dev(disk));

	rcu_assign_pointer(ptbl->part[part->partno], NULL);

	kobject_put(part->holder_dir);

	device_del(part_to_dev(part));
@@ -556,7 +557,7 @@ int bdev_del_partition(struct block_device *bdev, int partno) 
	sync_blockdev(bdevp);

	invalidate_bdev(bdevp);



	delete_partition(bdev->bd_disk, part);

	delete_partition(part);

	ret = 0;

out_unlock:

	mutex_unlock(&bdev->bd_mutex);
@@ -636,7 +637,7 @@ int blk_drop_partitions(struct block_device *bdev) 


	disk_part_iter_init(&piter, bdev->bd_disk, DISK_PITER_INCL_EMPTY);

	while ((part = disk_part_iter_next(&piter)))

		delete_partition(bdev->bd_disk, part);

		delete_partition(part);

	disk_part_iter_exit(&piter);



	return 0;

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