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linux/tools/testing/selftests/mm
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aigourensheng 8b8546d298 selftests/mm:fix test_prctl_fork_exec return failure 
After calling fork() in test_prctl_fork_exec(), the global variable
ksm_full_scans_fd is initialized to 0 in the child process upon entering
the main function of ./ksm_functional_tests.

In the function call chain test_child_ksm() -> __mmap_and_merge_range ->
ksm_merge-> ksm_get_full_scans, start_scans = ksm_get_full_scans() will
return an error.  Therefore, the value of ksm_full_scans_fd needs to be
initialized before calling test_child_ksm in the child process.

Link: https://lkml.kernel.org/r/20240617052934.5834-1-shechenglong001@gmail.com
Signed-off-by: aigourensheng <shechenglong001@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-06-24 20:52:10 -07:00
..
.gitignore selftest mm/mseal read-only elf memory segment 2024-05-23 19:40:27 -07:00
charge_reserved_hugetlb.sh selftests/mm: save and restore nr_hugepages value 2024-02-22 15:38:55 -08:00
check_config.sh selftests/mm: give scripts execute permission 2023-07-14 09:24:31 -07:00
compaction_test.c selftests/mm: compaction_test: fix bogus test success and reduce probability of OOM-killer invocation 2024-05-24 11:55:06 -07:00
config selftests: mm: add pagemap ioctl tests 2023-10-18 14:34:13 -07:00
cow.c The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
gup_longterm.c The usual shower of singleton fixes and minor series all over MM, 2024-05-19 09:21:03 -07:00
gup_test.c selftests/mm: fix build warnings on ppc64 2024-05-24 11:55:06 -07:00
hmm-tests.c selftests: avoid using SKIP(exit()) in harness fixure setup 2024-03-05 19:25:36 -08:00
hugepage-mmap.c selftests: mm: hugepage-mmap: conform to TAP format output 2024-01-05 10:17:48 -08:00
hugepage-mremap.c mm/selftests: hugepage-mremap: conform test to TAP format output 2024-01-05 10:17:47 -08:00
hugepage-shm.c selftests: mm: remove duplicate unneeded defines 2023-06-19 16:19:25 -07:00
hugepage-vmemmap.c selftests: mm: hugepage-vmemmap fails on 64K page size systems 2024-01-12 15:20:48 -08:00
hugetlb-madvise.c selftests/mm: skip the hugetlb-madvise tests on unmet hugepage requirements 2024-03-12 13:07:18 -07:00
hugetlb-read-hwpoison.c selftests/mm: add tests for HWPOISON hugetlbfs read 2023-08-18 10:12:27 -07:00
hugetlb_fault_after_madv.c selftests/mm: add a new test for madv and hugetlb 2023-10-18 14:34:16 -07:00
hugetlb_madv_vs_map.c selftests/mm: hugetlb_madv_vs_map: avoid test skipping by querying hugepage size at runtime 2024-05-11 15:41:37 -07:00
hugetlb_reparenting_test.sh selftests/mm: save and restore nr_hugepages value 2024-02-22 15:38:55 -08:00
khugepaged.c selftests/mm/khugepaged: enlighten for multi-size THP 2023-12-20 14:48:12 -08:00
ksm_functional_tests.c selftests/mm:fix test_prctl_fork_exec return failure 2024-06-24 20:52:10 -07:00
ksm_tests.c selftests/mm: ksm_tests should only MADV_HUGEPAGE valid memory 2024-01-25 23:52:21 -08:00
madv_populate.c selftests/mm: ksft_exit functions do not return 2024-05-06 13:57:20 -06:00
Makefile selftest mm/mseal read-only elf memory segment 2024-05-23 19:40:27 -07:00
map_fixed_noreplace.c selftests: mm: make map_fixed_noreplace test names stable 2024-06-15 10:43:07 -07:00
map_hugetlb.c selftests/mm: map_hugetlb: conform test to TAP format output 2024-02-22 10:24:48 -08:00
map_populate.c selftests/mm: map_populate: conform test to TAP format output 2024-02-22 10:24:48 -08:00
mdwe_test.c Revert "selftests/harness: remove use of LINE_MAX" 2024-05-19 14:36:20 -07:00
memfd_secret.c selftests/memfd_secret: add vmsplice() test 2024-04-25 20:56:13 -07:00
migration.c selftests/mm: make migration test robust to failure 2023-08-18 10:12:43 -07:00
mkdirty.c selftests/mm: ksft_exit functions do not return 2024-05-06 13:57:20 -06:00
mlock-random-test.c selftests/mm: mlock-random-test: conform test to TAP format output 2024-02-22 10:24:48 -08:00
mlock2-tests.c selftests/mm: parse VMA range in one go 2024-04-25 20:56:07 -07:00
mlock2.h selftests/mm: mlock2-tests: conform test to TAP format output 2024-02-22 10:24:49 -08:00
mrelease_test.c selftests/mm: mrelease_test: conform test to TAP format output 2024-02-22 10:24:49 -08:00
mremap_dontunmap.c selftests/mm: mremap_dontunmap: conform test to TAP format output 2024-02-22 10:24:49 -08:00
mremap_test.c selftests/mm: mremap_test: use sscanf to parse /proc/self/maps 2024-04-25 20:56:32 -07:00
mseal_test.c selftest mm/mseal read-only elf memory segment 2024-05-23 19:40:27 -07:00
on-fault-limit.c selftests/mm: run_vmtests: remove sudo and conform to tap 2024-02-22 15:38:55 -08:00
pagemap_ioctl.c selftests/mm: ksft_exit functions do not return 2024-05-06 13:57:20 -06:00
pkey-helpers.h selftests/mm: Substitute attribute with a macro 2023-10-13 14:08:36 -06:00
pkey-powerpc.h selftests: mm: remove duplicate unneeded defines 2023-06-19 16:19:25 -07:00
pkey-x86.h selftests: mm: remove duplicate unneeded defines 2023-06-19 16:19:25 -07:00
protection_keys.c selftests: mm: protection_keys: save/restore nr_hugepages value from launch script 2024-04-25 10:07:27 -07:00
run_vmtests.sh selftests/mm: run_vmtests.sh: fix hugetlb mem size calculation 2024-04-25 20:56:02 -07:00
seal_elf.c selftest mm/mseal read-only elf memory segment 2024-05-23 19:40:27 -07:00
settings selftests/mm: run all tests from run_vmtests.sh 2023-08-18 10:12:43 -07:00
soft-dirty.c selftests/mm: ksft_exit functions do not return 2024-05-06 13:57:20 -06:00
split_huge_page_test.c selftests: mm: fix unused and uninitialized variable warning 2024-04-24 19:34:25 -07:00
test_hmm.sh selftests/mm: give scripts execute permission 2023-07-14 09:24:31 -07:00
test_vmalloc.sh selftests/mm: give scripts execute permission 2023-07-14 09:24:31 -07:00
thp_settings.c selftests/mm: support multi-size THP interface in thp_settings 2023-12-20 14:48:12 -08:00
thp_settings.h selftests/mm: support multi-size THP interface in thp_settings 2023-12-20 14:48:12 -08:00
thuge-gen.c selftests/mm: thuge-gen: conform to TAP format output 2024-02-22 10:24:49 -08:00
transhuge-stress.c selftests/mm: transhuge-stress: conform to TAP format output 2024-02-22 10:24:49 -08:00
uffd-common.c selftests/mm: fix ARM related issue with fork after pthread_create 2024-03-26 11:14:12 -07:00
uffd-common.h selftests/mm: fix build warnings on ppc64 2024-05-24 11:55:06 -07:00
uffd-stress.c selftests/mm: skip uffd hugetlb tests with insufficient hugepages 2024-03-12 13:07:18 -07:00
uffd-unit-tests.c selftests/mm: fix ARM related issue with fork after pthread_create 2024-03-26 11:14:12 -07:00
va_high_addr_switch.c selftests/mm: va_high_addr_switch should skip unsupported arm64 configs 2023-08-18 10:12:43 -07:00
va_high_addr_switch.sh selftests/mm: Update va_high_addr_switch.sh to check CPU for la57 flag 2024-01-25 23:52:21 -08:00
virtual_address_range.c selftests/mm: confirm VA exhaustion without reliance on correctness of mmap() 2024-04-25 20:56:01 -07:00
vm_util.c selftests/mm: transhuge-stress: conform to TAP format output 2024-02-22 10:24:49 -08:00
vm_util.h selftests/mm: include strings.h for ffsl 2024-04-05 11:21:30 -07:00
write_hugetlb_memory.sh selftests/mm: switch to bash from sh 2024-01-25 23:52:20 -08:00
write_to_hugetlbfs.c selftests/vm: rename selftests/vm to selftests/mm 2023-01-18 17:12:56 -08:00