47 static inline int pte_looks_normal(pte_t pte)  in pte_looks_normal()  argument
49 	return (pte_val(pte) &  in pte_looks_normal()
54 struct page * maybe_pte_to_page(pte_t pte)  in maybe_pte_to_page()  argument
56 	unsigned long pfn = pte_pfn(pte);  in maybe_pte_to_page()
75 static pte_t set_pte_filter(pte_t pte, unsigned long addr)  in set_pte_filter()  argument
77 	pte = __pte(pte_val(pte) & ~_PAGE_HPTEFLAGS);  in set_pte_filter()
78 	if (pte_looks_normal(pte) && !(cpu_has_feature(CPU_FTR_COHERENT_ICACHE) ||  in set_pte_filter()
80 		struct page *pg = maybe_pte_to_page(pte);  in set_pte_filter()
82 			return pte;  in set_pte_filter()
99 	return pte;  in set_pte_filter()
102 static pte_t set_access_flags_filter(pte_t pte, struct vm_area_struct *vma,  in set_access_flags_filter()  argument
105 	return pte;  in set_access_flags_filter()
114 static pte_t set_pte_filter(pte_t pte, unsigned long addr)  in set_pte_filter()  argument
119 	if (!(pte_val(pte) & _PAGE_EXEC) || !pte_looks_normal(pte))  in set_pte_filter()
120 		return pte;  in set_pte_filter()
123 	pg = maybe_pte_to_page(pte);  in set_pte_filter()
125 		return pte;  in set_pte_filter()
129 		return pte;  in set_pte_filter()
135 		return pte;  in set_pte_filter()
139 	return __pte(pte_val(pte) & ~_PAGE_EXEC);  in set_pte_filter()
142 static pte_t set_access_flags_filter(pte_t pte, struct vm_area_struct *vma,  in set_access_flags_filter()  argument
152 	if (dirty || (pte_val(pte) & _PAGE_EXEC) || !is_exec_fault())  in set_access_flags_filter()
153 		return pte;  in set_access_flags_filter()
161 		return pte;  in set_access_flags_filter()
165 	pg = maybe_pte_to_page(pte);  in set_access_flags_filter()
178 	return __pte(pte_val(pte) | _PAGE_EXEC);  in set_access_flags_filter()
187 		pte_t pte)  in set_pte_at()  argument
196 	pte = set_pte_filter(pte, addr);  in set_pte_at()
199 	__set_pte_at(mm, addr, ptep, pte, 0);  in set_pte_at()