As David suggested, currently we don't have a high level test case to verify the behavior of rmap. This patch set introduce the verification on rmap by migration.
Patch 1 is a preparation to move ksm related operation into vm_util. Patch 2 is the new test case. Currently it covers following four scenarios: * anonymous page * shmem page * pagecache page * ksm page Wei Yang (2): selftests/mm: put general ksm operation into vm_util selftests/mm: assert rmap behave as expected MAINTAINERS | 1 + tools/testing/selftests/mm/.gitignore | 1 + tools/testing/selftests/mm/Makefile | 3 + .../selftests/mm/ksm_functional_tests.c | 76 +-- tools/testing/selftests/mm/rmap.c | 466 ++++++++++++++++++ tools/testing/selftests/mm/run_vmtests.sh | 4 + tools/testing/selftests/mm/vm_util.c | 71 +++ tools/testing/selftests/mm/vm_util.h | 7 + 8 files changed, 563 insertions(+), 66 deletions(-) create mode 100644 tools/testing/selftests/mm/rmap.c -- 2.34.1
