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Donet Tom 7bed977305 selftests/mm: fix incorrect buffer->mirror size in hmm2 double_map test ... [ Upstream commit 76503e1fa1 ] The hmm2 double_map test was failing due to an incorrect buffer->mirror size. The buffer->mirror size was 6, while buffer->ptr size was 6 * PAGE_SIZE. The test failed because the kernel's copy_to_user function was attempting to copy a 6 * PAGE_SIZE buffer to buffer->mirror. Since the size of buffer->mirror was incorrect, copy_to_user failed. This patch corrects the buffer->mirror size to 6 * PAGE_SIZE. Test Result without this patch ============================== # RUN hmm2.hmm2_device_private.double_map ... # hmm-tests.c:1680:double_map:Expected ret (-14) == 0 (0) # double_map: Test terminated by assertion # FAIL hmm2.hmm2_device_private.double_map not ok 53 hmm2.hmm2_device_private.double_map Test Result with this patch =========================== # RUN hmm2.hmm2_device_private.double_map ... # OK hmm2.hmm2_device_private.double_map ok 53 hmm2.hmm2_device_private.double_map Link: https://lkml.kernel.org/r/20240927050752.51066-1-donettom@linux.ibm.com Fixes: fee9f6d1b8 ("mm/hmm/test: add selftests for HMM") Signed-off-by: Donet Tom <donettom@linux.ibm.com> Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com> Cc: Jérôme Glisse <jglisse@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Mark Brown <broonie@kernel.org> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Cc: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Jason Gunthorpe <jgg@mellanox.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2024-11-08 16:25:51 +01:00
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fault-injection	docs: fault-injection: convert docs to ReST and rename to *.rst	2019-06-14 14:21:07 -06:00
ktest	ktest.pl: Avoid false positives with grub2 skip regex	2024-10-17 15:11:50 +02:00
kunit	kunit: tool: Import missing importlib.abc	2022-02-23 12:03:04 +01:00
nvdimm	memremap: remove support for external pgmap refcounts	2022-08-17 14:23:43 +02:00
radix-tree	radix tree test suite: fix incorrect allocation size for pthreads	2023-08-16 18:21:58 +02:00
scatterlist	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
selftests	selftests/mm: fix incorrect buffer->mirror size in hmm2 double_map test	2024-11-08 16:25:51 +01:00
vsock	vsock_diag_test: remove free_sock_stat() call in test_no_sockets	2021-10-15 17:21:34 -07:00