| #ifndef _LINUX_DAX_H |
| #define _LINUX_DAX_H |
| |
| #include <linux/fs.h> |
| #include <linux/mm.h> |
| #include <asm/pgtable.h> |
| |
| ssize_t dax_do_io(struct kiocb *, struct inode *, struct iov_iter *, loff_t, |
| get_block_t, dio_iodone_t, int flags); |
| int dax_clear_blocks(struct inode *, sector_t block, long size); |
| int dax_zero_page_range(struct inode *, loff_t from, unsigned len, get_block_t); |
| int dax_truncate_page(struct inode *, loff_t from, get_block_t); |
| int dax_fault(struct vm_area_struct *, struct vm_fault *, get_block_t, |
| dax_iodone_t); |
| int __dax_fault(struct vm_area_struct *, struct vm_fault *, get_block_t, |
| dax_iodone_t); |
| int dax_pfn_mkwrite(struct vm_area_struct *, struct vm_fault *); |
| #define dax_mkwrite(vma, vmf, gb, iod) dax_fault(vma, vmf, gb, iod) |
| #define __dax_mkwrite(vma, vmf, gb, iod) __dax_fault(vma, vmf, gb, iod) |
| |
| static inline bool vma_is_dax(struct vm_area_struct *vma) |
| { |
| return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host); |
| } |
| #endif |