Commit 14cf1dbb authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

block: remove bdgrab 



All callers are gone, and no one should grab a pure inode reference to
a block device anymore.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarJosef Bacik <josef@toxicpanda.com>
Link: https://lore.kernel.org/r/20210722075402.983367-9-hch@lst.de


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 4b273122

fs/block_dev.c

+0 −15
Original line number Diff line number Diff line
@@ -921,21 +921,6 @@ void bdev_add(struct block_device *bdev, dev_t dev) 
	insert_inode_hash(bdev->bd_inode);

}



/**

 * bdgrab -- Grab a reference to an already referenced block device

 * @bdev:	Block device to grab a reference to.

 *

 * Returns the block_device with an additional reference when successful,

 * or NULL if the inode is already beeing freed.

 */

struct block_device *bdgrab(struct block_device *bdev)

{

	if (!igrab(bdev->bd_inode))

		return NULL;

	return bdev;

}

EXPORT_SYMBOL(bdgrab);



long nr_blockdev_pages(void)

{

	struct inode *inode;

include/linux/blkdev.h

+0 −1
Original line number Diff line number Diff line
@@ -1984,7 +1984,6 @@ void blkdev_put_no_open(struct block_device *bdev); 
struct block_device *bdev_alloc(struct gendisk *disk, u8 partno);

void bdev_add(struct block_device *bdev, dev_t dev);

struct block_device *I_BDEV(struct inode *inode);

struct block_device *bdgrab(struct block_device *bdev);

void bdput(struct block_device *);

int truncate_bdev_range(struct block_device *bdev, fmode_t mode, loff_t lstart,

		loff_t lend);