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SubjectRe: [PATCH v3 2/8] KVM: selftests: Add demand paging content to the demand paging test
On Mon, Dec 16, 2019 at 01:38:55PM -0800, Ben Gardon wrote:

[...]

> +static void *uffd_handler_thread_fn(void *arg)
> +{
> + struct uffd_handler_args *uffd_args = (struct uffd_handler_args *)arg;
> + int uffd = uffd_args->uffd;
> + int64_t pages = 0;
> +
> + while (!quit_uffd_thread) {
> + struct uffd_msg msg;
> + struct pollfd pollfd[1];
> + int r;
> + uint64_t addr;
> +
> + pollfd[0].fd = uffd;
> + pollfd[0].events = POLLIN;
> +
> + /*
> + * TODO this introduces a 0.5sec delay at the end of the test.
> + * Reduce the timeout or eliminate it following the example in
> + * tools/testing/selftests/vm/userfaultfd.c
> + */
> + r = poll(pollfd, 1, 500);

Would you mind implement it instead of adding a todo? IIUC it's as
simple as a few more lines than the comment itself. Thanks,

--
Peter Xu

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