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linux/tools/testing/selftests/vm
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Nico Pache 0d29b474fb selftests: mm: fix map_hugetlb failure on 64K page size systems 
[ Upstream commit 91b80cc5b3 ]

On systems with 64k page size and 512M huge page sizes, the allocation and
test succeeds but errors out at the munmap.  As the comment states, munmap
will failure if its not HUGEPAGE aligned.  This is due to the length of
the mapping being 1/2 the size of the hugepage causing the munmap to not
be hugepage aligned.  Fix this by making the mapping length the full
hugepage if the hugepage is larger than the length of the mapping.

Link: https://lkml.kernel.org/r/20240119131429.172448-1-npache@redhat.com
Signed-off-by: Nico Pache <npache@redhat.com>
Cc: Donet Tom <donettom@linux.vnet.ibm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-03-15 10:48:20 -04:00
..
.gitignore selftests: vm: add KSM merge test 2021-09-03 09:58:18 -07:00
charge_reserved_hugetlb.sh selftests/mm: switch to bash from sh 2024-03-15 10:48:20 -04:00
check_config.sh selftests/vm: hmm-tests: remove the libhugetlbfs dependency 2020-12-15 12:13:38 -08:00
compaction_test.c selftests/vm: 8x compaction_test speedup 2020-10-13 18:38:34 -07:00
config mm/gup_benchmark: rename to mm/gup_test 2020-12-15 12:13:38 -08:00
gup_test.c mm/gup_benchmark: support threading 2021-06-29 10:53:48 -07:00
hmm-tests.c mm/hmm.c: allow VM_MIXEDMAP to work with hmm_range_fault 2022-01-27 11:05:43 +01:00
hugepage-mmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hugepage-shm.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hugetlb_reparenting_test.sh selftests/mm: fix awk usage in charge_reserved_hugetlb.sh and hugetlb_reparenting_test.sh that may cause error 2023-10-25 11:58:58 +02:00
khugepaged.c khugepaged: selftests: remove debug_cow 2021-06-30 20:47:26 -07:00
ksm_tests.c selftests: vm: add COW time test for KSM pages 2021-09-03 09:58:18 -07:00
madv_populate.c selftests/vm: add test for MADV_POPULATE_(READ|WRITE) 2021-06-30 20:47:31 -07:00
Makefile selftests: vm: Makefile: rename TARGETS to VMTARGETS 2022-05-18 10:26:50 +02:00
map_fixed_noreplace.c selftest/vm: fix map_fixed_noreplace test failure 2022-03-16 14:23:42 +01:00
map_hugetlb.c selftests: mm: fix map_hugetlb failure on 64K page size systems 2024-03-15 10:48:20 -04:00
map_populate.c tools/testing/selftests/vm/: add MAP_POPULATE test 2018-08-22 10:52:45 -07:00
memfd_secret.c selftests: secretmem: floor the memory size to the multiple of page_size 2024-01-15 18:51:21 +01:00
mlock-random-test.c selftests: Fix spelling mistake "cann't" -> "cannot" 2021-09-03 09:58:13 -07:00
mlock2-tests.c selftests: vm: drop dependencies on page flags from mlock2 tests 2020-04-02 09:35:31 -07:00
mlock2.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mremap_dontunmap.c selftests: add a MREMAP_DONTUNMAP selftest for shmem 2021-04-30 11:20:39 -07:00
mremap_test.c selftests/vm: remove ARRAY_SIZE define from individual tests 2023-02-06 07:59:01 +01:00
on-fault-limit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pkey-helpers.h selftests/vm: remove ARRAY_SIZE define from individual tests 2023-02-06 07:59:01 +01:00
pkey-powerpc.h selftests: vm: pkeys: use the correct page size on powerpc 2020-06-04 19:06:27 -07:00
pkey-x86.h selftests/vm/pkeys: Add a regression test for setting PKRU through ptrace 2023-01-14 10:23:28 +01:00
protection_keys.c selftests/vm/pkeys: Add a regression test for setting PKRU through ptrace 2023-01-14 10:23:28 +01:00
run_vmtests.sh selftests: vm: add KSM merging across nodes test 2021-09-03 09:58:18 -07:00
split_huge_page_test.c tools/testing/selftests/vm/split_huge_page_test.c: fix application of sizeof to pointer 2021-10-28 17:18:55 -07:00
test_hmm.sh mm/hmm/test: add selftests for HMM 2020-05-19 16:48:31 -03:00
test_vmalloc.sh vm/test_vmalloc.sh: adapt for updated driver interface 2021-04-30 11:20:40 -07:00
thuge-gen.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
transhuge-stress.c selftests/vm/transhuge-stress: stress test for memory compaction 2014-10-09 22:26:01 -04:00
userfaultfd.c kselftest/vm: fix tests build with old libc 2022-03-19 13:47:50 +01:00
va_128TBswitch.c selftests/vm: remove ARRAY_SIZE define from individual tests 2023-02-06 07:59:01 +01:00
virtual_address_range.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191 2019-05-30 11:29:21 -07:00
write_hugetlb_memory.sh selftests/mm: switch to bash from sh 2024-03-15 10:48:20 -04:00
write_to_hugetlbfs.c selftests/vm/write_to_hugetlbfs.c: fix unused variable warning 2020-05-23 10:26:31 -07:00