LXR linux/include/asm-generic/mm

   1/*
   2 * Define generic no-op hooks for arch_dup_mmap, arch_exit_mmap
   3 * and arch_unmap to be included in asm-FOO/mmu_context.h for any
   4 * arch FOO which doesn't need to hook these.
   5 */
   6#ifndef _ASM_GENERIC_MM_HOOKS_H
   7#define _ASM_GENERIC_MM_HOOKS_H
   8
   9static inline void arch_dup_mmap(struct mm_struct *oldmm,
  10                                 struct mm_struct *mm)
  11{
  12}
  13
  14static inline void arch_exit_mmap(struct mm_struct *mm)
  15{
  16}
  17
  18static inline void arch_unmap(struct mm_struct *mm,
  19                        struct vm_area_struct *vma,
  20                        unsigned long start, unsigned long end)
  21{
  22}
  23
  24static inline void arch_bprm_mm_init(struct mm_struct *mm,
  25                                     struct vm_area_struct *vma)
  26{
  27}
  28
  29static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
  30                bool write, bool execute, bool foreign)
  31{
  32        /* by default, allow everything */
  33        return true;
  34}
  35
  36static inline bool arch_pte_access_permitted(pte_t pte, bool write)
  37{
  38        /* by default, allow everything */
  39        return true;
  40}
  41#endif  /* _ASM_GENERIC_MM_HOOKS_H */
  42