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Create a btrfs backing dev info

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This allows intelligent versions of unplug and congestion functions

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-03-26 10:28:07 -04:00
parent 593060d756
commit 0416008814
3 changed files with 60 additions and 0 deletions
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fs/btrfs/ctree.h
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@@ -25,6 +25,7 @@
#include <linux/fs.h>
#include <linux/workqueue.h>
#include <linux/completion.h>
#include <linux/backing-dev.h>
#include <asm/kmap_types.h>
#include "bit-radix.h"
#include "extent_io.h"
@@ -472,6 +473,7 @@ struct btrfs_fs_info {
struct block_device *__bdev;
struct super_block *sb;
struct inode *btree_inode;
struct backing_dev_info bdi;
spinlock_t hash_lock;
struct mutex trans_mutex;
struct mutex fs_mutex;