1031 static inline int __zs_cpu_up(struct mapping_area *area)  in __zs_cpu_up()  argument
1037 	if (area->vm)  in __zs_cpu_up()
1039 	area->vm = alloc_vm_area(PAGE_SIZE * 2, NULL);  in __zs_cpu_up()
1040 	if (!area->vm)  in __zs_cpu_up()
1045 static inline void __zs_cpu_down(struct mapping_area *area)  in __zs_cpu_down()  argument
1047 	if (area->vm)  in __zs_cpu_down()
1048 		free_vm_area(area->vm);  in __zs_cpu_down()
1049 	area->vm = NULL;  in __zs_cpu_down()
1052 static inline void *__zs_map_object(struct mapping_area *area,  in __zs_map_object()  argument
1055 	BUG_ON(map_vm_area(area->vm, PAGE_KERNEL, pages));  in __zs_map_object()
1056 	area->vm_addr = area->vm->addr;  in __zs_map_object()
1057 	return area->vm_addr + off;  in __zs_map_object()
1060 static inline void __zs_unmap_object(struct mapping_area *area,  in __zs_unmap_object()  argument
1063 	unsigned long addr = (unsigned long)area->vm_addr;  in __zs_unmap_object()
1070 static inline int __zs_cpu_up(struct mapping_area *area)  in __zs_cpu_up()  argument
1076 	if (area->vm_buf)  in __zs_cpu_up()
1078 	area->vm_buf = kmalloc(ZS_MAX_ALLOC_SIZE, GFP_KERNEL);  in __zs_cpu_up()
1079 	if (!area->vm_buf)  in __zs_cpu_up()
1084 static inline void __zs_cpu_down(struct mapping_area *area)  in __zs_cpu_down()  argument
1086 	kfree(area->vm_buf);  in __zs_cpu_down()
1087 	area->vm_buf = NULL;  in __zs_cpu_down()
1090 static void *__zs_map_object(struct mapping_area *area,  in __zs_map_object()  argument
1095 	char *buf = area->vm_buf;  in __zs_map_object()
1101 	if (area->vm_mm == ZS_MM_WO)  in __zs_map_object()
1115 	return area->vm_buf;  in __zs_map_object()
1118 static void __zs_unmap_object(struct mapping_area *area,  in __zs_unmap_object()  argument
1126 	if (area->vm_mm == ZS_MM_RO)  in __zs_unmap_object()
1129 	buf = area->vm_buf;  in __zs_unmap_object()
1130 	if (!area->huge) {  in __zs_unmap_object()
1158 	struct mapping_area *area;  in zs_cpu_notifier()  local
1162 		area = &per_cpu(zs_map_area, cpu);  in zs_cpu_notifier()
1163 		ret = __zs_cpu_up(area);  in zs_cpu_notifier()
1169 		area = &per_cpu(zs_map_area, cpu);  in zs_cpu_notifier()
1170 		__zs_cpu_down(area);  in zs_cpu_notifier()
1270 	struct mapping_area *area;  in zs_map_object()  local
1292 	area = &get_cpu_var(zs_map_area);  in zs_map_object()
1293 	area->vm_mm = mm;  in zs_map_object()
1296 		area->vm_addr = kmap_atomic(page);  in zs_map_object()
1297 		ret = area->vm_addr + off;  in zs_map_object()
1306 	ret = __zs_map_object(area, pages, off, class->size);  in zs_map_object()
1323 	struct mapping_area *area;  in zs_unmap_object()  local
1333 	area = this_cpu_ptr(&zs_map_area);  in zs_unmap_object()
1335 		kunmap_atomic(area->vm_addr);  in zs_unmap_object()
1343 		__zs_unmap_object(area, pages, off, class->size);  in zs_unmap_object()