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| author |   Gabriel Krisman Bertazi <krisman@collabora.com> | 2022-04-28 23:16:11 -0700 |
|---|---|---|
| committer |   akpm <akpm@linux-foundation.org> | 2022-04-28 23:16:11 -0700 |
| commit | 9f3265db6ae87de27a5e382410b8eb9af53b161e (patch) | |
| tree | bdd1c2018c2e3a511cdb89c52a6ab749351e7197 /tools/testing/selftests/vm/Makefile | |
| parent | selftests: vm: bring common functions to a new file (diff) | |
| download | linux-dev-9f3265db6ae87de27a5e382410b8eb9af53b161e.tar.xz linux-dev-9f3265db6ae87de27a5e382410b8eb9af53b161e.zip | |
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 912efa17e512 ("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>
Diffstat (limited to 'tools/testing/selftests/vm/Makefile')
| -rw-r--r-- | tools/testing/selftests/vm/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile index 6fd967839ccd..f1228370e99b 100644 --- a/tools/testing/selftests/vm/Makefile +++ b/tools/testing/selftests/vm/Makefile @@ -50,6 +50,7 @@ TEST_GEN_FILES += on-fault-limit TEST_GEN_FILES += thuge-gen TEST_GEN_FILES += transhuge-stress TEST_GEN_FILES += userfaultfd +TEST_GEN_PROGS += soft-dirty TEST_GEN_PROGS += split_huge_page_test TEST_GEN_FILES += ksm_tests @@ -95,6 +96,7 @@ KSFT_KHDR_INSTALL := 1 include ../lib.mk $(OUTPUT)/madv_populate: vm_util.c +$(OUTPUT)/soft-dirty: vm_util.c $(OUTPUT)/split_huge_page_test: vm_util.c ifeq ($(MACHINE),x86_64) |