2 Commits

Author	SHA1	Message	Date
Peter Xu	c942f5bd17	selftests: soft-dirty: add test for mprotect ... Add two soft-dirty test cases for mprotect() on both anon or file. Link: https://lkml.kernel.org/r/20220725142048.30450-3-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Nadav Amit <nadav.amit@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2022-07-29 18:07:18 -07:00
Gabriel Krisman Bertazi	9f3265db6a	selftests: vm: add test for Soft-Dirty PTE bit ... This introduces three tests: 1) Sanity check soft dirty basic semantics: allocate area, clean, dirty, check if the SD bit is flipped. 2) Check VMA reuse: validate the VM_SOFTDIRTY usage 3) Check soft-dirty on huge pages This was motivated by Will Deacon's fix commit 912efa17e5 ("mm: proc: Invalidate TLB after clearing soft-dirty page state"). I was tracking the same issue that he fixed, and this test would have caught it. Link: https://lkml.kernel.org/r/20220420084036.4101604-2-usama.anjum@collabora.com Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com> Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Co-developed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Cc: Will Deacon <will@kernel.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2022-04-28 23:16:11 -07:00