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selftests/mm: use selftests framework to print test result

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Otherwise the number of tests does not match the reality.

Link: https://lkml.kernel.org/r/20250110235028.96824-1-ziy@nvidia.com
Fixes: 391e869711 ("mm: selftest to verify zero-filled pages are mapped to zeropage")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Cc: Alexander Zhu <alexlzhu@fb.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Usama Arif <usamaarif642@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Zi Yan 2025-01-10 18:50:27 -05:00 committed by Andrew Morton
parent 91fe0e4d04
commit 136c5b40e0
1 changed files with 12 additions and 22 deletions
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34
tools/testing/selftests/mm/split_huge_page_test.c
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@ -108,38 +108,28 @@ static void verify_rss_anon_split_huge_page_all_zeroes(char *one_page, int nr_hp
unsigned long rss_anon_before, rss_anon_after;
size_t i;
if (!check_huge_anon(one_page, 4, pmd_pagesize)) {
printf("No THP is allocated\n");
exit(EXIT_FAILURE);
}
if (!check_huge_anon(one_page, 4, pmd_pagesize))
ksft_exit_fail_msg("No THP is allocated\n");
rss_anon_before = rss_anon();
if (!rss_anon_before) {
printf("No RssAnon is allocated before split\n");
exit(EXIT_FAILURE);
}
if (!rss_anon_before)
ksft_exit_fail_msg("No RssAnon is allocated before split\n");
/* split all THPs */
write_debugfs(PID_FMT, getpid(), (uint64_t)one_page,
(uint64_t)one_page + len, 0);
for (i = 0; i < len; i++)
if (one_page[i] != (char)0) {
printf("%ld byte corrupted\n", i);
exit(EXIT_FAILURE);
}
if (one_page[i] != (char)0)
ksft_exit_fail_msg("%ld byte corrupted\n", i);
if (!check_huge_anon(one_page, 0, pmd_pagesize)) {
printf("Still AnonHugePages not split\n");
exit(EXIT_FAILURE);
}
if (!check_huge_anon(one_page, 0, pmd_pagesize))
ksft_exit_fail_msg("Still AnonHugePages not split\n");
rss_anon_after = rss_anon();
if (rss_anon_after >= rss_anon_before) {
printf("Incorrect RssAnon value. Before: %ld After: %ld\n",
if (rss_anon_after >= rss_anon_before)
ksft_exit_fail_msg("Incorrect RssAnon value. Before: %ld After: %ld\n",
rss_anon_before, rss_anon_after);
exit(EXIT_FAILURE);
}
}
void split_pmd_zero_pages(void)
@ -150,7 +140,7 @@ void split_pmd_zero_pages(void)
one_page = allocate_zero_filled_hugepage(len);
verify_rss_anon_split_huge_page_all_zeroes(one_page, nr_hpages, len);
printf("Split zero filled huge pages successful\n");
ksft_test_result_pass("Split zero filled huge pages successful\n");
free(one_page);
}
@ -491,7 +481,7 @@ int main(int argc, char **argv)
if (argc > 1)
optional_xfs_path = argv[1];
ksft_set_plan(3+9);
ksft_set_plan(4+9);
pagesize = getpagesize();
pageshift = ffs(pagesize) - 1;