struct list_head dev_alloc_list;
struct btrfs_root *dev_root;
struct buffer_head *pending_io;
+ u64 generation;
int barriers;
+ int in_fs_metadata;
spinlock_t io_lock;
/* the device with this id has the most recent coyp of the super */
u64 latest_devid;
u64 latest_trans;
- u64 lowest_devid;
u64 num_devices;
+ u64 open_devices;
struct block_device *latest_bdev;
- struct block_device *lowest_bdev;
/* all of the devices in the FS */
struct list_head devices;
/* devices not currently being allocated */
struct list_head alloc_list;
struct list_head list;
+ int mounted;
};
struct btrfs_bio_stripe {
atomic_t stripes_pending;
bio_end_io_t *end_io;
void *private;
- int error;
+ atomic_t error;
+ int max_errors;
int num_stripes;
struct btrfs_bio_stripe stripes[];
};
int btrfs_scan_one_device(const char *path, int flags, void *holder,
struct btrfs_fs_devices **fs_devices_ret);
int btrfs_close_devices(struct btrfs_fs_devices *fs_devices);
+int btrfs_close_extra_devices(struct btrfs_fs_devices *fs_devices);
int btrfs_add_device(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct btrfs_device *device);
+int btrfs_rm_device(struct btrfs_root *root, char *device_path);
int btrfs_cleanup_fs_uuids(void);
int btrfs_num_copies(struct btrfs_mapping_tree *map_tree, u64 logical, u64 len);
int btrfs_unplug_page(struct btrfs_mapping_tree *map_tree,
u64 logical, struct page *page);
+int btrfs_grow_device(struct btrfs_trans_handle *trans,
+ struct btrfs_device *device, u64 new_size);
+struct btrfs_device *btrfs_find_device(struct btrfs_root *root, u64 devid,
+ u8 *uuid);
+int btrfs_shrink_device(struct btrfs_device *device, u64 new_size);
+int btrfs_init_new_device(struct btrfs_root *root, char *path);
+int btrfs_balance(struct btrfs_root *dev_root);
+void btrfs_unlock_volumes(void);
+void btrfs_lock_volumes(void);
#endif