On Fri, Aug 16, 2019 at 10:25:51AM +0800, Zhao Yakui wrote:
> + case IC_VM_INTR_MONITOR: {
> + struct page *page;
> +
> + ret = get_user_pages_fast(ioctl_param, 1, 1, &page);
> + if (unlikely(ret != 1) || !page) {
^^^^^^^^
Not required.
> + pr_err("acrn-dev: failed to pin intr hdr buffer!\n");
> + return -ENOMEM;
> + }
> +
> + ret = hcall_vm_intr_monitor(vm->vmid, page_to_phys(page));
> + if (ret < 0) {
> + pr_err("acrn-dev: monitor intr data err=%ld\n", ret);
> + return -EFAULT;
> + }
> + break;
> + }
> +
regards,
dan carpenter
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