Donet Tom 08ff89b565 selftests/mm: add fork inheritance test for ksm_merging_pages counter ...

Add a new selftest to verify whether the `ksm_merging_pages` counter in
`mm_struct` is not inherited by a child process after fork.  This helps
ensure correctness of KSM accounting across process creation.

Link: https://lkml.kernel.org/r/e7bb17d374133bd31a3e423aa9e46e1122e74971.1758648700.git.donettom@linux.ibm.com
Signed-off-by: Donet Tom <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Cc: Aboorva Devarajan <[email protected]>
Cc: Chengming Zhou <[email protected]>
Cc: "Ritesh Harjani (IBM)" <[email protected]>
Cc: Wei Yang <[email protected]>
Cc: xu xin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

2025-09-28 11:51:32 -07:00

..

page_frag

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.gitignore

selftests/mm: test that rmap behaves as expected

2025-09-13 16:55:13 -07:00

charge_reserved_hugetlb.sh

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check_config.sh

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compaction_test.c

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config

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cow.c

selftest/mm: extract sz2ord function into vm_util.h

2025-09-13 16:55:06 -07:00

droppable.c

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guard-regions.c

selftests/mm: fix FORCE_READ to read input value correctly

2025-08-27 22:45:42 -07:00

gup_longterm.c

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gup_test.c

selftests/mm: gup_tests: option to GUP all pages in a single call

2025-09-21 14:22:33 -07:00

hmm-tests.c

selftests/mm: add -Wunreachable-code and fix warnings

2025-09-21 14:22:34 -07:00

hugepage-mmap.c

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hugepage-mremap.c

selftests/mm: skip hugepage-mremap test if userfaultfd unavailable

2025-09-13 16:55:04 -07:00

hugepage-shm.c

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hugepage-vmemmap.c

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hugetlb_dio.c

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hugetlb_fault_after_madv.c

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hugetlb_madv_vs_map.c

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hugetlb_reparenting_test.sh

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hugetlb-madvise.c

selftests/mm: fix FORCE_READ to read input value correctly

2025-08-27 22:45:42 -07:00

hugetlb-read-hwpoison.c

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hugetlb-soft-offline.c

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khugepaged.c

selftests/mm: remove PROT_EXEC req from file-collapse tests

2025-09-21 14:22:31 -07:00

ksm_functional_tests.c

selftests/mm: add fork inheritance test for ksm_merging_pages counter

2025-09-28 11:51:32 -07:00

ksm_tests.c

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madv_populate.c

selftests/mm: skip soft-dirty tests when CONFIG_MEM_SOFT_DIRTY is disabled

2025-09-23 14:14:16 -07:00

Makefile

selftests/mm: add -Wunreachable-code and fix warnings

2025-09-21 14:22:34 -07:00

map_fixed_noreplace.c

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map_hugetlb.c

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map_populate.c

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mdwe_test.c

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memfd_secret.c

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merge.c

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migration.c

selftests/mm: fix FORCE_READ to read input value correctly

2025-08-27 22:45:42 -07:00

mkdirty.c

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mlock2-tests.c

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mlock2.h

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mlock-random-test.c

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mrelease_test.c

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mremap_dontunmap.c

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mremap_test.c

selftests/mm: fix spelling mistake "mrmeap" -> "mremap"

2025-09-13 16:54:59 -07:00

mseal_helpers.h

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mseal_test.c

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on-fault-limit.c

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pagemap_ioctl.c

selftests/mm: use calloc instead of malloc in pagemap_ioctl.c

2025-09-13 16:55:17 -07:00

pfnmap.c

selftests/mm: pass filename as input param to VM_PFNMAP tests

2025-09-13 16:54:43 -07:00

pkey_sighandler_tests.c

selftests/mm: add -Wunreachable-code and fix warnings

2025-09-21 14:22:34 -07:00

pkey_util.c

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pkey-arm64.h

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pkey-helpers.h

selftests: centralise maybe-unused definition in kselftest.h

2025-09-13 16:55:16 -07:00

pkey-powerpc.h

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pkey-x86.h

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prctl_thp_disable.c

selftests: prctl: introduce tests for disabling THPs except for madvise

2025-09-13 16:55:06 -07:00

process_madv.c

selftests/mm: add process_madvise() tests

2025-08-02 12:06:08 -07:00

protection_keys.c

selftests/mm: protection_keys: fix dead code

2025-09-21 14:22:34 -07:00

rmap.c

selftests/mm: test that rmap behaves as expected

2025-09-13 16:55:13 -07:00

run_vmtests.sh

selftests/mm: gup_tests: option to GUP all pages in a single call

2025-09-21 14:22:33 -07:00

settings

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soft-dirty.c

selftests/mm: skip soft-dirty tests when CONFIG_MEM_SOFT_DIRTY is disabled

2025-09-23 14:14:16 -07:00

split_huge_page_test.c

selftests/mm: add -Wunreachable-code and fix warnings

2025-09-21 14:22:34 -07:00

test_hmm.sh

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test_page_frag.sh

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test_vmalloc.sh

kselftest: mm: fix typos in test_vmalloc.sh

2025-09-13 16:55:16 -07:00

thp_settings.c

selftests: prctl: introduce tests for disabling THPs completely

2025-09-13 16:55:06 -07:00

thp_settings.h

selftests: prctl: introduce tests for disabling THPs completely

2025-09-13 16:55:06 -07:00

thuge-gen.c

selftests/mm: skip thuge-gen test if system is not setup properly

2025-09-13 16:55:04 -07:00

transhuge-stress.c

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uffd-common.c

selftests/mm/uffd: refactor non-composite global vars into struct

2025-09-21 14:21:59 -07:00

uffd-common.h

selftests/mm/uffd: refactor non-composite global vars into struct

2025-09-21 14:21:59 -07:00

uffd-stress.c

selftests/mm/uffd: refactor non-composite global vars into struct

2025-09-21 14:21:59 -07:00

uffd-unit-tests.c

selftests/mm/uffd: refactor non-composite global vars into struct

2025-09-21 14:21:59 -07:00

uffd-wp-mremap.c

selftests/mm/uffd: refactor non-composite global vars into struct

2025-09-21 14:21:59 -07:00

va_high_addr_switch.c

selftests/mm: fix va_high_addr_switch.sh failure on x86_64

2025-09-21 14:22:29 -07:00

va_high_addr_switch.sh

selftests/mm: alloc hugepages in va_high_addr_switch test

2025-09-21 14:22:28 -07:00

virtual_address_range.c

selftests/mm: add support to test 4PB VA on PPC64

2025-09-13 16:55:03 -07:00

vm_util.c

selftests/mm: skip soft-dirty tests when CONFIG_MEM_SOFT_DIRTY is disabled

2025-09-23 14:14:16 -07:00

vm_util.h

selftests/mm: skip soft-dirty tests when CONFIG_MEM_SOFT_DIRTY is disabled

2025-09-23 14:14:16 -07:00

write_hugetlb_memory.sh

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write_to_hugetlbfs.c

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