On Tue 15-09-09 20:16:47, Jens Axboe wrote:
> It has been unused since it was introduced in:
>
> commit 520808bf20e90fdbdb320264ba7dd5cf9d47dcac
> Author: Andrew Morton <akpm@xxxxxxxx>
> Date: Fri May 21 00:46:17 2004 -0700
>
> [PATCH] block device layer: separate backing_dev_info infrastructure
>
> So lets just kill it.
>
> Signed-off-by: Jens Axboe <jens.axboe@xxxxxxxxxx>
Fine with me: Acked-by: Jan Kara <jack@xxxxxxx>
Honza
> ---
> fs/block_dev.c | 1 -
> fs/inode.c | 4 +---
> fs/nilfs2/the_nilfs.c | 4 +---
> include/linux/fs.h | 1 -
> 4 files changed, 2 insertions(+), 8 deletions(-)
>
> diff --git a/fs/block_dev.c b/fs/block_dev.c
> index 3581a4e..71e7e03 100644
> --- a/fs/block_dev.c
> +++ b/fs/block_dev.c
> @@ -420,7 +420,6 @@ static void bdev_destroy_inode(struct inode *inode)
> {
> struct bdev_inode *bdi = BDEV_I(inode);
>
> - bdi->bdev.bd_inode_backing_dev_info = NULL;
> kmem_cache_free(bdev_cachep, bdi);
> }
>
> diff --git a/fs/inode.c b/fs/inode.c
> index ae7b67e..b2ba83d 100644
> --- a/fs/inode.c
> +++ b/fs/inode.c
> @@ -182,9 +182,7 @@ int inode_init_always(struct super_block *sb, struct inode *inode)
> if (sb->s_bdev) {
> struct backing_dev_info *bdi;
>
> - bdi = sb->s_bdev->bd_inode_backing_dev_info;
> - if (!bdi)
> - bdi = sb->s_bdev->bd_inode->i_mapping->backing_dev_info;
> + bdi = sb->s_bdev->bd_inode->i_mapping->backing_dev_info;
> mapping->backing_dev_info = bdi;
> }
> inode->i_private = NULL;
> diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
> index d4168e2..ad391a8 100644
> --- a/fs/nilfs2/the_nilfs.c
> +++ b/fs/nilfs2/the_nilfs.c
> @@ -591,9 +591,7 @@ int init_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi, char *data)
>
> nilfs->ns_mount_state = le16_to_cpu(sbp->s_state);
>
> - bdi = nilfs->ns_bdev->bd_inode_backing_dev_info;
> - if (!bdi)
> - bdi = nilfs->ns_bdev->bd_inode->i_mapping->backing_dev_info;
> + bdi = nilfs->ns_bdev->bd_inode->i_mapping->backing_dev_info;
> nilfs->ns_bdi = bdi ? : &default_backing_dev_info;
>
> /* Finding last segment */
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index b21cf6b..db29588 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -655,7 +655,6 @@ struct block_device {
> int bd_invalidated;
> struct gendisk * bd_disk;
> struct list_head bd_list;
> - struct backing_dev_info *bd_inode_backing_dev_info;
> /*
> * Private data. You must have bd_claim'ed the block_device
> * to use this. NOTE: bd_claim allows an owner to claim
> --
> 1.6.4.1.207.g68ea
>
--
Jan Kara <jack@xxxxxxx>
SUSE Labs, CR
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