[LTP] userfaultfd: Add helper for checking UFFD feature support

[Cyril Hrubis]

Hi!
> > --- [PATCH 2/3] ---
> > 
> > On Thu, 7 May 2026 14:28:54 +0200, Ricardo Branco wrote:
> > > [PATCH 2/3] userfaultfd: Use two-step handshake to probe features
> > 
> > > Fixes: 1840ee23d172b5ab04cca7c2acfa48755b041911
> > 
> > This commit is not reachable in the local git history (grafted shallow
> > clone). Please verify the Fixes: tag resolves correctly against the
> > upstream LTP tree.
> 
> Can you please double check this? Maybe we have an another issue
> with the agent.

The commit is there:

commit 1840ee23d172b5ab04cca7c2acfa48755b041911
Author: Li Wang <li.wang@linux.dev>
Date:   Fri Jan 23 19:54:19 2026 +0800

    userfaultfd05: require CONFIG_HAVE_ARCH_USERFAULTFD_WP


-- 
Cyril Hrubis
chrubis@suse.cz