static int do_ops()

in kernel/tlb.c [62:119]

• 54 lines of code
• 10 McCabe index (conditional complexity)

static int do_ops(struct host_vm_change *hvc, int end,
		  int finished)
{
	struct host_vm_op *op;
	int i, ret = 0;

	for (i = 0; i < end && !ret; i++) {
		op = &hvc->ops[i];
		switch (op->type) {
		case MMAP:
			if (hvc->userspace)
				ret = map(&hvc->mm->context.id, op->u.mmap.addr,
					  op->u.mmap.len, op->u.mmap.prot,
					  op->u.mmap.fd,
					  op->u.mmap.offset, finished,
					  &hvc->data);
			else
				map_memory(op->u.mmap.addr, op->u.mmap.offset,
					   op->u.mmap.len, 1, 1, 1);
			break;
		case MUNMAP:
			if (hvc->userspace)
				ret = unmap(&hvc->mm->context.id,
					    op->u.munmap.addr,
					    op->u.munmap.len, finished,
					    &hvc->data);
			else
				ret = os_unmap_memory(
					(void *) op->u.munmap.addr,
						      op->u.munmap.len);

			break;
		case MPROTECT:
			if (hvc->userspace)
				ret = protect(&hvc->mm->context.id,
					      op->u.mprotect.addr,
					      op->u.mprotect.len,
					      op->u.mprotect.prot,
					      finished, &hvc->data);
			else
				ret = os_protect_memory(
					(void *) op->u.mprotect.addr,
							op->u.mprotect.len,
							1, 1, 1);
			break;
		default:
			printk(KERN_ERR "Unknown op type %d in do_ops\n",
			       op->type);
			BUG();
			break;
		}
	}

	if (ret == -ENOMEM)
		report_enomem();

	return ret;
}