struct buffer_head *map_bh, int create);
int xfs_get_blocks_dax_fault(struct inode *inode, sector_t offset,
struct buffer_head *map_bh, int create);
-void xfs_end_io_dax_write(struct buffer_head *bh, int uptodate);
extern void xfs_count_page_state(struct page *, int *, int *);