Donet Tom fae1980347 selftests: hugetlb_dio: fixup check for initial conditions to skip in the start ... This test verifies that a hugepage, used as a user buffer for DIO operations, is correctly freed upon unmapping. To test this, we read the count of free hugepages before and after the mmap, DIO, and munmap operations, then check if the free hugepage count is the same. Reading free hugepages before the test was removed by commit 0268d45799 ('selftests: hugetlb_dio: check for initial conditions to skip at the start'), causing the test to always fail. This patch adds back reading the free hugepages before starting the test. With this patch, the tests are now passing. Test results without this patch: ./tools/testing/selftests/mm/hugetlb_dio TAP version 13 1..4 # No. Free pages before allocation : 0 # No. Free pages after munmap : 100 not ok 1 : Huge pages not freed! # No. Free pages before allocation : 0 # No. Free pages after munmap : 100 not ok 2 : Huge pages not freed! # No. Free pages before allocation : 0 # No. Free pages after munmap : 100 not ok 3 : Huge pages not freed! # No. Free pages before allocation : 0 # No. Free pages after munmap : 100 not ok 4 : Huge pages not freed! # Totals: pass:0 fail:4 xfail:0 xpass:0 skip:0 error:0 Test results with this patch: /tools/testing/selftests/mm/hugetlb_dio TAP version 13 1..4 # No. Free pages before allocation : 100 # No. Free pages after munmap : 100 ok 1 : Huge pages freed successfully ! # No. Free pages before allocation : 100 # No. Free pages after munmap : 100 ok 2 : Huge pages freed successfully ! # No. Free pages before allocation : 100 # No. Free pages after munmap : 100 ok 3 : Huge pages freed successfully ! # No. Free pages before allocation : 100 # No. Free pages after munmap : 100 ok 4 : Huge pages freed successfully ! # Totals: pass:4 fail:0 xfail:0 xpass:0 skip:0 error:0 Link: https://lkml.kernel.org/r/20241110064903.23626-1-donettom@linux.ibm.com Fixes: 0268d45799 ("selftests: hugetlb_dio: check for initial conditions to skip in the start") Signed-off-by: Donet Tom <donettom@linux.ibm.com> Cc: Muhammad Usama Anjum <usama.anjum@collabora.com> Cc: Shuah Khan <shuah@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2024-11-12 10:14:00 -08:00
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crypto/chacha20-s390
cxl	cxl/test: Improve init-order fidelity relative to real-world systems	2024-10-25 16:07:04 -05:00
fault-injection	failcmd: make failcmd.sh executable	2024-09-01 20:43:32 -07:00
ktest	ktest.pl: Avoid false positives with grub2 skip regex	2024-09-04 15:06:28 -04:00
kunit	kunit: tool: Build compile_commands.json	2024-09-12 09:52:36 -06:00
memblock	memblock: updates for 6.12-rc1	2024-09-25 11:35:19 -07:00
nvdimm
radix-tree	maple_tree: add regression test for spanning store bug	2024-10-17 08:35:10 -07:00
scatterlist
selftests	selftests: hugetlb_dio: fixup check for initial conditions to skip in the start	2024-11-12 10:14:00 -08:00
shared	19 hotfixes. 13 are cc:stable.	2024-09-27 10:27:22 -07:00
vma	tools: testing: add expand-only mode VMA test	2024-10-28 21:40:40 -07:00
vsock	test/vsock: add ioctl unsent bytes test	2024-08-02 09:20:28 +01:00