2872 static void btrfs_double_inode_unlock(struct inode *inode1, struct inode *inode2)  in btrfs_double_inode_unlock()  argument
2874 	mutex_unlock(&inode1->i_mutex);  in btrfs_double_inode_unlock()
2878 static void btrfs_double_inode_lock(struct inode *inode1, struct inode *inode2)  in btrfs_double_inode_lock()  argument
2880 	if (inode1 < inode2)  in btrfs_double_inode_lock()
2881 		swap(inode1, inode2);  in btrfs_double_inode_lock()
2883 	mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);  in btrfs_double_inode_lock()
2887 static void btrfs_double_extent_unlock(struct inode *inode1, u64 loff1,  in btrfs_double_extent_unlock()  argument
2890 	unlock_extent(&BTRFS_I(inode1)->io_tree, loff1, loff1 + len - 1);  in btrfs_double_extent_unlock()
2894 static int btrfs_double_extent_lock(struct inode *inode1, u64 loff1,  in btrfs_double_extent_lock()  argument
2900 	if (inode1 < inode2) {  in btrfs_double_extent_lock()
2901 		swap(inode1, inode2);  in btrfs_double_extent_lock()
2904 	ret = lock_extent_range(inode1, loff1, len, retry_range_locking);  in btrfs_double_extent_lock()
2909 		unlock_extent(&BTRFS_I(inode1)->io_tree, loff1,  in btrfs_double_extent_lock()