[LTP] [PATCH v2] syscalls/userfaultfd01: add hint about unprivileged_userfaultfd

[Li Wang]

Hi Yang,

On Mon, Jan 6, 2020 at 5:10 PM Yang Xu <xuyang2018.jy@cn.fujitsu.com> wrote:

> ...
> > Can we do the "vm.unprivileged_userfaultfd" check in the setup() and do
> > set to 1 if it exists?
> I remembered Jan Stancek has a patch about bpf hint about
> unprivileged_bpf_disabled, I do as same as that patch did.
>
> Also, month agos about acct02 discussion, Cyril points about adjusting
> the threshold value of resume and suppend to make case passes.
>
> So, I have a question that we have unified standards about these cases
> (bpf, acct02, affected by sysctl)? Report TCONF or modify argument to
> make case passes?
>

After thinking over, to report TCONF is the wise method here because this
test might run with an unprivileged user and it can not modify the knob
"vm.unprivileged_userfaultfd".

Sorry and now I pull back my last comment.

Reviewed-by: Li Wang <liwang@redhat.com>

-- 
Regards,
Li Wang
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linux.it/pipermail/ltp/attachments/20200107/cb5dcf9f/attachment-0001.htm>