On Mon Sep 21, 2026 at 6:40 AM EDT, Yeoreum Yun wrote: > check_huge_shmem() was required to distinguish shmem huge pages because > /proc/self/smaps reports them using a dedicated “ShmemPmdMapped” entry, > as opposed to “FilePmdMapped” for file-backed huge pages. > > Now that /proc/self/smaps is no longer used to detect huge pages and > /proc/kpageflags is used instead, it is sufficient to distinguish > between file-backed and anonymous pages since the ShmemPmdMapped is also > kind of file-backed. > > Therefore, remove check_huge_shmem() and use check_huge_file() instead > and cleanup khugepaged's check_huge operation in mem_ops. > > Suggested-by: David Hildenbrand (Arm) <[email protected]> > Signed-off-by: Yeoreum Yun <[email protected]> > --- > tools/testing/selftests/mm/folio_split_race_test.c | 2 +- > tools/testing/selftests/mm/khugepaged.c | 38 > ++++------------------ > tools/testing/selftests/mm/uffd-common.c | 4 +-- > tools/testing/selftests/mm/vm_util.c | 5 --- > tools/testing/selftests/mm/vm_util.h | 1 - > 5 files changed, 9 insertions(+), 41 deletions(-) > Makes sense.
Acked-by: Zi Yan <[email protected]> -- Best Regards, Yan, Zi
