LXR linux/include/asm-generic/mm

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Define generic no-op hooks for arch_dup_mmap, arch_exit_mmap
   4 * and arch_unmap to be included in asm-FOO/mmu_context.h for any
   5 * arch FOO which doesn't need to hook these.
   6 */
   7#ifndef _ASM_GENERIC_MM_HOOKS_H
   8#define _ASM_GENERIC_MM_HOOKS_H
   9
  10static inline int arch_dup_mmap(struct mm_struct *oldmm,
  11                                struct mm_struct *mm)
  12{
  13        return 0;
  14}
  15
  16static inline void arch_exit_mmap(struct mm_struct *mm)
  17{
  18}
  19
  20static inline void arch_unmap(struct mm_struct *mm,
  21                        unsigned long start, unsigned long end)
  22{
  23}
  24
  25static inline void arch_bprm_mm_init(struct mm_struct *mm,
  26                                     struct vm_area_struct *vma)
  27{
  28}
  29
  30static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
  31                bool write, bool execute, bool foreign)
  32{
  33        /* by default, allow everything */
  34        return true;
  35}
  36#endif  /* _ASM_GENERIC_MM_HOOKS_H */
  37