+ /* Check whether to allocate the iovec area */
+ iov_size = args->nr_local * sizeof(struct rds_iovec);
+ if (args->nr_local > UIO_FASTIOV) {
+ iovs = sock_kmalloc(rds_rs_to_sk(rs), iov_size, GFP_KERNEL);
+ if (!iovs) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ }
+
+ if (copy_from_user(iovs, (struct rds_iovec __user *)(unsigned long) args->local_vec_addr, iov_size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ nr_pages = rds_rdma_pages(iovs, args->nr_local);