26 void subpage_prot_free(struct mm_struct *mm)  in subpage_prot_free()  argument
28 	struct subpage_prot_table *spt = &mm->context.spt;  in subpage_prot_free()
53 void subpage_prot_init_new_context(struct mm_struct *mm)  in subpage_prot_init_new_context()  argument
55 	struct subpage_prot_table *spt = &mm->context.spt;  in subpage_prot_init_new_context()
60 static void hpte_flush_range(struct mm_struct *mm, unsigned long addr,  in hpte_flush_range()  argument
69 	pgd = pgd_offset(mm, addr);  in hpte_flush_range()
78 	pte = pte_offset_map_lock(mm, pmd, addr, &ptl);  in hpte_flush_range()
81 		pte_update(mm, addr, pte, 0, 0, 0);  in hpte_flush_range()
95 	struct mm_struct *mm = current->mm;  in subpage_prot_clear()  local
96 	struct subpage_prot_table *spt = &mm->context.spt;  in subpage_prot_clear()
102 	down_write(&mm->mmap_sem);  in subpage_prot_clear()
128 		hpte_flush_range(mm, addr, nw);  in subpage_prot_clear()
130 	up_write(&mm->mmap_sem);  in subpage_prot_clear()
142 static void subpage_mark_vma_nohuge(struct mm_struct *mm, unsigned long addr,  in subpage_mark_vma_nohuge()  argument
147 		.mm = mm,  in subpage_mark_vma_nohuge()
155 	vma = find_vma(mm, addr);  in subpage_mark_vma_nohuge()
171 static void subpage_mark_vma_nohuge(struct mm_struct *mm, unsigned long addr,  in subpage_mark_vma_nohuge()  argument
190 	struct mm_struct *mm = current->mm;  in sys_subpage_prot()  local
191 	struct subpage_prot_table *spt = &mm->context.spt;  in sys_subpage_prot()
203 	if (is_hugepage_only_range(mm, addr, len))  in sys_subpage_prot()
215 	down_write(&mm->mmap_sem);  in sys_subpage_prot()
216 	subpage_mark_vma_nohuge(mm, addr, len);  in sys_subpage_prot()
242 		demote_segment_4k(mm, addr);  in sys_subpage_prot()
250 		up_write(&mm->mmap_sem);  in sys_subpage_prot()
255 		down_write(&mm->mmap_sem);  in sys_subpage_prot()
258 		hpte_flush_range(mm, addr, nw);  in sys_subpage_prot()
264 	up_write(&mm->mmap_sem);  in sys_subpage_prot()