31 void __init init_vdso_image(const struct vdso_image *image)  in init_vdso_image()  argument
33 	BUG_ON(image->size % PAGE_SIZE != 0);  in init_vdso_image()
35 	apply_alternatives((struct alt_instr *)(image->data + image->alt),  in init_vdso_image()
36 			   (struct alt_instr *)(image->data + image->alt +  in init_vdso_image()
37 						image->alt_len));  in init_vdso_image()
45 	const struct vdso_image *image = vma->vm_mm->context.vdso_image;  in vdso_fault()  local
47 	if (!image || (vmf->pgoff << PAGE_SHIFT) >= image->size)  in vdso_fault()
50 	vmf->page = virt_to_page(image->data + (vmf->pgoff << PAGE_SHIFT));  in vdso_fault()
55 static void vdso_fix_landing(const struct vdso_image *image,  in vdso_fix_landing()  argument
59 	if (in_ia32_syscall() && image == &vdso_image_32) {  in vdso_fix_landing()
61 		unsigned long vdso_land = image->sym_int80_landing_pad;  in vdso_fix_landing()
76 	const struct vdso_image *image = current->mm->context.vdso_image;  in vdso_mremap()  local
78 	if (image->size != new_size)  in vdso_mremap()
81 	vdso_fix_landing(image, new_vma);  in vdso_mremap()
90 	const struct vdso_image *image = vma->vm_mm->context.vdso_image;  in vvar_fault()  local
94 	if (!image)  in vvar_fault()
98 		image->sym_vvar_start;  in vvar_fault()
102 	 * does not exist for this vdso image, not that the page is at  in vvar_fault()
110 	if (sym_offset == image->sym_vvar_page) {  in vvar_fault()
113 	} else if (sym_offset == image->sym_pvclock_page) {  in vvar_fault()
123 	} else if (sym_offset == image->sym_hvclock_page) {  in vvar_fault()
149  * @image          - blob to map
152 static int map_vdso(const struct vdso_image *image, unsigned long addr)  in map_vdso()  argument
163 				 image->size - image->sym_vvar_start, 0, 0);  in map_vdso()
169 	text_start = addr - image->sym_vvar_start;  in map_vdso()
176 				       image->size,  in map_vdso()
188 				       -image->sym_vvar_start,  in map_vdso()
195 		do_munmap(mm, text_start, image->size, NULL);  in map_vdso()
198 		current->mm->context.vdso_image = image;  in map_vdso()
251 static int map_vdso_randomized(const struct vdso_image *image)  in map_vdso_randomized()  argument
253 	unsigned long addr = vdso_addr(current->mm->start_stack, image->size-image->sym_vvar_start);  in map_vdso_randomized()
255 	return map_vdso(image, addr);  in map_vdso_randomized()
259 int map_vdso_once(const struct vdso_image *image, unsigned long addr)  in map_vdso_once()  argument
281 	return map_vdso(image, addr);  in map_vdso_once()