[mirror_ubuntu-focal-kernel.git] / include / asm-generic / mm_hooks.h

/* 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,
			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 */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
d6dd61c8	2	/*
62e88b1c DH	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.
d6dd61c8 JF	6	*/
	7	#ifndef _ASM_GENERIC_MM_HOOKS_H
	8	#define _ASM_GENERIC_MM_HOOKS_H
	9
c10e83f5 TG	10	static inline int arch_dup_mmap(struct mm_struct *oldmm,
c10e83f5 TG	11	struct mm_struct *mm)
d6dd61c8	12	{
c10e83f5	13	return 0;
d6dd61c8 JF	14	}
	15
	16	static inline void arch_exit_mmap(struct mm_struct *mm)
	17	{
	18	}
	19
62e88b1c	20	static inline void arch_unmap(struct mm_struct *mm,
62e88b1c DH	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
1b2ee126	30	static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
d61172b4	31	bool write, bool execute, bool foreign)
33a709b2 DH	32	{
	33	/* by default, allow everything */
	34	return true;
	35	}
d6dd61c8	36	#endif /* _ASM_GENERIC_MM_HOOKS_H */