[LTP] [PATCH v1] Skip cgroup-related tests if `/sys/fs/cgroup` readonly

[Wei Gao]

On Mon, Sep 25, 2023 at 05:17:28PM +0200, Petr Vorel wrote:
> Hi all,
> 
> > Otherwise clone303 fails with TBROK when `/sys/fs/cgroup` is mounted as
> > read-only which is normal in a container. The test result should better
> > be TCONF like it is already done in case of a permission error.
> 
> Reviewed-by: Petr Vorel <pvorel@suse.cz>
  Tested-by: Wei Gao <wegao@suse.com>
> 
> IMHO another candidate for merging before release.
> 
> Kind regards,
> Petr
> 
> > Signed-off-by: Marius Kittler <mkittler@suse.de>
> > ---
> >  lib/tst_cgroup.c | 3 +++
> >  1 file changed, 3 insertions(+)
> 
> > diff --git a/lib/tst_cgroup.c b/lib/tst_cgroup.c
> > index fdeac6059..5240aadaa 100644
> > --- a/lib/tst_cgroup.c
> > +++ b/lib/tst_cgroup.c
> > @@ -383,6 +383,9 @@ static void cgroup_dir_mk(const struct cgroup_dir *const parent,
> >  		tst_brk(TCONF | TERRNO,
> >  			"Lack permission to make '%s/%s'; premake it or run as root",
> >  			dpath, dir_name);
> > +	} else if (errno == EROFS) {
> > +		tst_brk(TCONF | TERRNO, "'%s/%s' must not be read-only",
> > +			dpath, dir_name);
> >  	} else {
> >  		tst_brk(TBROK | TERRNO,
> >  			"mkdirat(%d<%s>, '%s', 0777)",
> 
> -- 
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