On Mon, Apr 13, 2026 at 03:20:30PM -0400, Zi Yan wrote: > +++ b/tools/testing/selftests/mm/guard-regions.c > @@ -2205,7 +2205,7 @@ TEST_F(guard_regions, collapse) > > /* > * We must close and re-open local-file backed as read-only for > - * CONFIG_READ_ONLY_THP_FOR_FS to work. > + * MADV_COLLAPSE to work.
Is this true? Does MADV_COLLAPSE refuse to work on writable files? Should we delete some code here as well as fix the comment? ;-)
