/* SPDX-License-Identifier: GPL-2.0 */
  /*
   * Define generic no-op hooks for arch_dup_mmap, arch_exit_mmap
   * and arch_unmap to be included in asm-FOO/mmu_context.h for any
   * arch FOO which doesn't need to hook these.
   */
  #ifndef _ASM_GENERIC_MM_HOOKS_H
  #define _ASM_GENERIC_MM_HOOKS_H
  
  static inline int arch_dup_mmap(struct mm_struct *oldmm,
  				struct mm_struct *mm)
  {
  	return 0;
  }
  
  static inline void arch_exit_mmap(struct mm_struct *mm)
  {
  }
  
  static inline void arch_unmap(struct mm_struct *mm,
  			struct vm_area_struct *vma,
  			unsigned long start, unsigned long end)
  {
  }
  
  static inline void arch_bprm_mm_init(struct mm_struct *mm,
  				     struct vm_area_struct *vma)
  {
  }
  
  static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
  		bool write, bool execute, bool foreign)
  {
  	/* by default, allow everything */
  	return true;
  }
  #endif	/* _ASM_GENERIC_MM_HOOKS_H */