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fs: remove mapping->backing_dev_info

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Now that we never use the backing_dev_info pointer in struct address_space
we can simply remove it and save 4 to 8 bytes in every inode.

Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Ryusuke Konishi <[email protected]>
Reviewed-by: Tejun Heo <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Christoph Hellwig 2015-01-14 10:42:37 +01:00 • committed by Jens Axboe
commit b83ae6d421
32 changed files with 8 additions and 91 deletions
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fs/ecryptfs/inode.c
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@ -67,7 +67,6 @@ static int ecryptfs_inode_set(struct inode *inode, void *opaque)
inode->i_ino = lower_inode->i_ino;
inode->i_version++;
inode->i_mapping->a_ops = &ecryptfs_aops;
inode->i_mapping->backing_dev_info = inode->i_sb->s_bdi;
if (S_ISLNK(inode->i_mode))
inode->i_op = &ecryptfs_symlink_iops;