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>
---
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
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