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TOMOYO Linux Cross Reference
Linux/include/linux/dax.h

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  1 #ifndef _LINUX_DAX_H
  2 #define _LINUX_DAX_H
  3 
  4 #include <linux/fs.h>
  5 #include <linux/mm.h>
  6 #include <asm/pgtable.h>
  7 
  8 ssize_t dax_do_io(struct kiocb *, struct inode *, struct iov_iter *, loff_t,
  9                   get_block_t, dio_iodone_t, int flags);
 10 int dax_clear_blocks(struct inode *, sector_t block, long size);
 11 int dax_zero_page_range(struct inode *, loff_t from, unsigned len, get_block_t);
 12 int dax_truncate_page(struct inode *, loff_t from, get_block_t);
 13 int dax_fault(struct vm_area_struct *, struct vm_fault *, get_block_t,
 14                 dax_iodone_t);
 15 int __dax_fault(struct vm_area_struct *, struct vm_fault *, get_block_t,
 16                 dax_iodone_t);
 17 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 18 int dax_pmd_fault(struct vm_area_struct *, unsigned long addr, pmd_t *,
 19                                 unsigned int flags, get_block_t, dax_iodone_t);
 20 int __dax_pmd_fault(struct vm_area_struct *, unsigned long addr, pmd_t *,
 21                                 unsigned int flags, get_block_t, dax_iodone_t);
 22 #else
 23 static inline int dax_pmd_fault(struct vm_area_struct *vma, unsigned long addr,
 24                                 pmd_t *pmd, unsigned int flags, get_block_t gb,
 25                                 dax_iodone_t di)
 26 {
 27         return VM_FAULT_FALLBACK;
 28 }
 29 #define __dax_pmd_fault dax_pmd_fault
 30 #endif
 31 int dax_pfn_mkwrite(struct vm_area_struct *, struct vm_fault *);
 32 #define dax_mkwrite(vma, vmf, gb, iod)          dax_fault(vma, vmf, gb, iod)
 33 #define __dax_mkwrite(vma, vmf, gb, iod)        __dax_fault(vma, vmf, gb, iod)
 34 
 35 static inline bool vma_is_dax(struct vm_area_struct *vma)
 36 {
 37         return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host);
 38 }
 39 #endif
 40 

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