Re: [PATCH v2 2/4] man/man[27]/{landlock_create_ruleset.2,landlock.7}: Document LANDLOCK_CREATE_RULESET_ERRATA

["Günther Noack" <gnoack3000@gmail.com>]

Hello Alejandro!

On Tue, Apr 21, 2026 at 02:16:38AM +0200, Alejandro Colomar wrote:
> On 2026-04-21T00:35:15+0200, Günther Noack wrote:
> > Document the LANDLOCK_CREATE_RULESET_ERRATA flag, which returns a
> > bitmask of fixed issues for the current Landlock ABI version.
> > 
> > This mechanism was introduced in Linux 6.15, but backported to all
> > older kernel releases where these errata fixes were backported to.
> > On official Linux kernel releases, if landlock_create_ruleset() with
> > LANDLOCK_CREATE_RULESET_ERRATA returns an error, this is equivalent to
> > the case where none of the known errata have been fixed.
> > 
> > Signed-off-by: Günther Noack <gnoack3000@gmail.com>
> > ---
> >  man/man2/landlock_create_ruleset.2 | 57 ++++++++++++++++++++++++++----
> >  1 file changed, 51 insertions(+), 6 deletions(-)
> > 
> > diff --git a/man/man2/landlock_create_ruleset.2 b/man/man2/landlock_create_ruleset.2
> > index d4eb5d827656..a24a4dd6cbb3 100644
> > --- a/man/man2/landlock_create_ruleset.2
> > +++ b/man/man2/landlock_create_ruleset.2
> > @@ -116,11 +116,7 @@ Otherwise,
> >  can be set to:
> >  .TP
> >  .B LANDLOCK_CREATE_RULESET_VERSION
> > -If
> > -.I attr
> > -is NULL and
> > -.I size
> > -is 0, then the returned value is the highest supported Landlock ABI version
> 
> This fix (and the related changes below) should be done in a separate
> patch.
> 
> Other than that, this patch LGTM.

Thanks for the review. I'll split it out and send a v3.

–Günther