···7272 * supposed to be based on the amount of physical memory available7373 */74747575-#define VMALLOC_START (PAGE_OFFSET + VMALLOC_OFFSET + \7676- (unsigned long)high_memory)7575+#define VMALLOC_START ((unsigned long) __va(high_memory + VMALLOC_OFFSET))77767877/* Gap between physical ram and vmalloc space for guard purposes. */7978#define VMALLOC_OFFSET PAGE_SIZE