1117 static inline int __zs_cpu_up(struct mapping_area *area)  in __zs_cpu_up()  argument
1123 	if (area->vm)  in __zs_cpu_up()
1125 	area->vm = alloc_vm_area(PAGE_SIZE * 2, NULL);  in __zs_cpu_up()
1126 	if (!area->vm)  in __zs_cpu_up()
1131 static inline void __zs_cpu_down(struct mapping_area *area)  in __zs_cpu_down()  argument
1133 	if (area->vm)  in __zs_cpu_down()
1134 		free_vm_area(area->vm);  in __zs_cpu_down()
1135 	area->vm = NULL;  in __zs_cpu_down()
1138 static inline void *__zs_map_object(struct mapping_area *area,  in __zs_map_object()  argument
1141 	BUG_ON(map_vm_area(area->vm, PAGE_KERNEL, pages));  in __zs_map_object()
1142 	area->vm_addr = area->vm->addr;  in __zs_map_object()
1143 	return area->vm_addr + off;  in __zs_map_object()
1146 static inline void __zs_unmap_object(struct mapping_area *area,  in __zs_unmap_object()  argument
1149 	unsigned long addr = (unsigned long)area->vm_addr;  in __zs_unmap_object()
1156 static inline int __zs_cpu_up(struct mapping_area *area)  in __zs_cpu_up()  argument
1162 	if (area->vm_buf)  in __zs_cpu_up()
1164 	area->vm_buf = kmalloc(ZS_MAX_ALLOC_SIZE, GFP_KERNEL);  in __zs_cpu_up()
1165 	if (!area->vm_buf)  in __zs_cpu_up()
1170 static inline void __zs_cpu_down(struct mapping_area *area)  in __zs_cpu_down()  argument
1172 	kfree(area->vm_buf);  in __zs_cpu_down()
1173 	area->vm_buf = NULL;  in __zs_cpu_down()
1176 static void *__zs_map_object(struct mapping_area *area,  in __zs_map_object()  argument
1181 	char *buf = area->vm_buf;  in __zs_map_object()
1187 	if (area->vm_mm == ZS_MM_WO)  in __zs_map_object()
1201 	return area->vm_buf;  in __zs_map_object()
1204 static void __zs_unmap_object(struct mapping_area *area,  in __zs_unmap_object()  argument
1212 	if (area->vm_mm == ZS_MM_RO)  in __zs_unmap_object()
1215 	buf = area->vm_buf;  in __zs_unmap_object()
1240 	struct mapping_area *area;  in zs_cpu_prepare()  local
1242 	area = &per_cpu(zs_map_area, cpu);  in zs_cpu_prepare()
1243 	return __zs_cpu_up(area);  in zs_cpu_prepare()
1248 	struct mapping_area *area;  in zs_cpu_dead()  local
1250 	area = &per_cpu(zs_map_area, cpu);  in zs_cpu_dead()
1251 	__zs_cpu_down(area);  in zs_cpu_dead()
1302 	struct mapping_area *area;  in zs_map_object()  local
1327 	area = &get_cpu_var(zs_map_area);  in zs_map_object()
1328 	area->vm_mm = mm;  in zs_map_object()
1331 		area->vm_addr = kmap_atomic(page);  in zs_map_object()
1332 		ret = area->vm_addr + off;  in zs_map_object()
1341 	ret = __zs_map_object(area, pages, off, class->size);  in zs_map_object()
1360 	struct mapping_area *area;  in zs_unmap_object()  local
1369 	area = this_cpu_ptr(&zs_map_area);  in zs_unmap_object()
1371 		kunmap_atomic(area->vm_addr);  in zs_unmap_object()
1379 		__zs_unmap_object(area, pages, off, class->size);  in zs_unmap_object()