93 extern long uffd_wp_range(struct vm_area_struct *vma,
97 static inline bool is_mergeable_vm_userfaultfd_ctx(struct vm_area_struct *vma,  in is_mergeable_vm_userfaultfd_ctx()  argument
100 	return vma->vm_userfaultfd_ctx.ctx == vm_ctx.ctx;  in is_mergeable_vm_userfaultfd_ctx()
114 static inline bool uffd_disable_huge_pmd_share(struct vm_area_struct *vma)  in uffd_disable_huge_pmd_share()  argument
116 	return vma->vm_flags & (VM_UFFD_WP | VM_UFFD_MINOR);  in uffd_disable_huge_pmd_share()
126 static inline bool uffd_disable_fault_around(struct vm_area_struct *vma)  in uffd_disable_fault_around()  argument
128 	return vma->vm_flags & (VM_UFFD_WP | VM_UFFD_MINOR);  in uffd_disable_fault_around()
131 static inline bool userfaultfd_missing(struct vm_area_struct *vma)  in userfaultfd_missing()  argument
133 	return vma->vm_flags & VM_UFFD_MISSING;  in userfaultfd_missing()
136 static inline bool userfaultfd_wp(struct vm_area_struct *vma)  in userfaultfd_wp()  argument
138 	return vma->vm_flags & VM_UFFD_WP;  in userfaultfd_wp()
141 static inline bool userfaultfd_minor(struct vm_area_struct *vma)  in userfaultfd_minor()  argument
143 	return vma->vm_flags & VM_UFFD_MINOR;  in userfaultfd_minor()
146 static inline bool userfaultfd_pte_wp(struct vm_area_struct *vma,  in userfaultfd_pte_wp()  argument
149 	return userfaultfd_wp(vma) && pte_uffd_wp(pte);  in userfaultfd_pte_wp()
152 static inline bool userfaultfd_huge_pmd_wp(struct vm_area_struct *vma,  in userfaultfd_huge_pmd_wp()  argument
155 	return userfaultfd_wp(vma) && pmd_uffd_wp(pmd);  in userfaultfd_huge_pmd_wp()
158 static inline bool userfaultfd_armed(struct vm_area_struct *vma)  in userfaultfd_armed()  argument
160 	return vma->vm_flags & __VM_UFFD_FLAGS;  in userfaultfd_armed()
163 static inline bool vma_can_userfault(struct vm_area_struct *vma,  in vma_can_userfault()  argument
167 	    (!is_vm_hugetlb_page(vma) && !vma_is_shmem(vma)))  in vma_can_userfault()
175 	if ((vm_flags & VM_UFFD_WP) && !vma_is_anonymous(vma))  in vma_can_userfault()
178 	return vma_is_anonymous(vma) || is_vm_hugetlb_page(vma) ||  in vma_can_userfault()
179 	    vma_is_shmem(vma);  in vma_can_userfault()
191 extern bool userfaultfd_remove(struct vm_area_struct *vma,
195 extern int userfaultfd_unmap_prep(struct vm_area_struct *vma,
199 extern bool userfaultfd_wp_unpopulated(struct vm_area_struct *vma);
210 static inline bool is_mergeable_vm_userfaultfd_ctx(struct vm_area_struct *vma,  in is_mergeable_vm_userfaultfd_ctx()  argument
216 static inline bool userfaultfd_missing(struct vm_area_struct *vma)  in userfaultfd_missing()  argument
221 static inline bool userfaultfd_wp(struct vm_area_struct *vma)  in userfaultfd_wp()  argument
226 static inline bool userfaultfd_minor(struct vm_area_struct *vma)  in userfaultfd_minor()  argument
231 static inline bool userfaultfd_pte_wp(struct vm_area_struct *vma,  in userfaultfd_pte_wp()  argument
237 static inline bool userfaultfd_huge_pmd_wp(struct vm_area_struct *vma,  in userfaultfd_huge_pmd_wp()  argument
244 static inline bool userfaultfd_armed(struct vm_area_struct *vma)  in userfaultfd_armed()  argument
249 static inline int dup_userfaultfd(struct vm_area_struct *vma,  in dup_userfaultfd()  argument
259 static inline void mremap_userfaultfd_prep(struct vm_area_struct *vma,  in mremap_userfaultfd_prep()  argument
271 static inline bool userfaultfd_remove(struct vm_area_struct *vma,  in userfaultfd_remove()  argument
278 static inline int userfaultfd_unmap_prep(struct vm_area_struct *vma,  in userfaultfd_unmap_prep()  argument
290 static inline bool uffd_disable_fault_around(struct vm_area_struct *vma)  in uffd_disable_fault_around()  argument
295 static inline bool userfaultfd_wp_unpopulated(struct vm_area_struct *vma)  in userfaultfd_wp_unpopulated()  argument
302 static inline bool userfaultfd_wp_use_markers(struct vm_area_struct *vma)  in userfaultfd_wp_use_markers()  argument
305 	if (!userfaultfd_wp(vma))  in userfaultfd_wp_use_markers()
309 	if (!vma_is_anonymous(vma))  in userfaultfd_wp_use_markers()
316 	return userfaultfd_wp_unpopulated(vma);  in userfaultfd_wp_use_markers()