[PATCH 0/2] mseal: Fix is_madv_discard()

This small series fixes is_madv_discard() and adds a small sanity check test to selftests/mm/mseal_test. Without this patch, is_madv_discard() erroneously thinks innocent ops like MADV_RANDOM are discard operations (which they are not, and are supposed to be allowed, per the overall design).

Based on Linus's tree and taken from my mseal depessimization series[1]. [1]: https://lore.kernel.org/all/20240806212808.1885309-1-pedro.falcato@gmail.com...

Pedro Falcato (2): mseal: Fix is_madv_discard() selftests/mm: Add mseal test for no-discard madvise

mm/mseal.c | 14 +++++++--- tools/testing/selftests/mm/mseal_test.c | 34 +++++++++++++++++++++++++ 2 files changed, 45 insertions(+), 3 deletions(-)