Re: [PATCH v3 7/7] selftests/mm: add more mseal traversal tests

From: Liam R. Howlett
Date: Tue Aug 20 2024 - 11:46:34 EST


* Pedro Falcato <pedro.falcato@xxxxxxxxx> [240818 02:36]:
> On Sat, Aug 17, 2024 at 1:18 AM Pedro Falcato <pedro.falcato@xxxxxxxxx> wrote:
> > @@ -983,6 +1019,41 @@ static void test_seal_munmap_vma_with_gap(bool seal)
> > REPORT_TEST_PASS();
> > }
> >
> > +static void test_seal_munmap_partial_across_vmas(bool seal)
> > +{
> > + void *ptr;
> > + unsigned long page_size = getpagesize();
> > + unsigned long size = 2 * page_size;
> > + int ret;
> > + int prot;
> > +
> > + /*
> > + * Check if a partial mseal (that results in two vmas) works correctly.
> > + * It might unmap the first, but it'll never unmap the second (msealed) vma.
> > + */
>
> Bah, obviously this comment isn't true, munmap is never partial.
> I'll change this locally for v4 if there ends up being one.

Besides this comment, the patch looks good.

Reviewed-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>