https://github.com/torvalds/linux
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Tip revision: a909d3e636995ba7c349e2ca5dbb528154d4ac30 authored by Linus Torvalds on 29 October 2016, 20:52:02 UTC
Linux 4.9-rc3
Tip revision: a909d3e
mm_hooks.h
/*
 * 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 void arch_dup_mmap(struct mm_struct *oldmm,
				 struct mm_struct *mm)
{
}

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;
}

static inline bool arch_pte_access_permitted(pte_t pte, bool write)
{
	/* by default, allow everything */
	return true;
}
#endif	/* _ASM_GENERIC_MM_HOOKS_H */
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