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 
10 static inline void arch_dup_mmap(struct mm_struct *oldmm,
11 				 struct mm_struct *mm)
12 {
13 }
14 
15 static inline void arch_exit_mmap(struct mm_struct *mm)
16 {
17 }
18 
19 static inline void arch_unmap(struct mm_struct *mm,
20 			struct vm_area_struct *vma,
21 			unsigned long start, unsigned long end)
22 {
23 }
24 
25 static inline void arch_bprm_mm_init(struct mm_struct *mm,
26 				     struct vm_area_struct *vma)
27 {
28 }
29 
30 static 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