[to-be-updated] selftests-mm-check-content-to-see-whether-mremap-corrupt-data.patch removed from -mm tree

[to-be-updated] selftests-mm-check-content-to-see-whether-mremap-corrupt-data.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: selftests/mm: check content to see whether mremap corrupt data
has been removed from the -mm tree.  Its filename was
     selftests-mm-check-content-to-see-whether-mremap-corrupt-data.patch

This patch was dropped because an updated version will be issued

------------------------------------------------------
From: Wei Yang <richard.weiyang@gmail.com>
Subject: selftests/mm: check content to see whether mremap corrupt data
Date: Sun, 31 Aug 2025 02:27:01 +0000

After mremap(), add a check on content to see whether mremap corrupt data.

Link: https://lkml.kernel.org/r/20250831022701.2595-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: wang lian <lianux.mm@gmail.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/mm/split_huge_page_test.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/tools/testing/selftests/mm/split_huge_page_test.c~selftests-mm-check-content-to-see-whether-mremap-corrupt-data
+++ a/tools/testing/selftests/mm/split_huge_page_test.c
@@ -423,10 +423,14 @@ static void split_pte_mapped_thp(void)
 
 	/* smap does not show THPs after mremap, use kpageflags instead */
 	thp_size = 0;
-	for (i = 0; i < pagesize * 4; i++)
+	for (i = 0; i < pagesize * 4; i++) {
+		if (pte_mapped[i] != (char)i)
+			ksft_exit_fail_msg("%ld byte corrupted\n", i);
+
 		if (i % pagesize == 0 &&
 		    is_backed_by_folio(&pte_mapped[i], pmd_order, pagemap_fd, kpageflags_fd))
 			thp_size++;
+	}
 
 	if (thp_size != 4)
 		ksft_exit_fail_msg("Some THPs are missing during mremap\n");
_

Patches currently in -mm which might be from richard.weiyang@gmail.com are

mm-khugepaged-fix-the-address-passed-to-notifier-on-testing-young.patch
mm-rmap-do-__folio_mod_stat-in-__folio_add_rmap.patch
selftests-mm-do-check_huge_anon-with-a-number-been-passed-in.patch
mm-rmap-not-necessary-to-mask-off-folio_pages_mapped.patch
mm-rmap-use-folio_large_nr_pages-when-we-are-sure-it-is-a-large-folio.patch
selftests-mm-put-general-ksm-operation-into-vm_util.patch
selftests-mm-test-that-rmap-behave-as-expected.patch
mm-khugepaged-use-list_xxx-helper-to-improve-readability.patch
mm-page_alloc-use-xxx_pageblock_isolate-for-better-reading.patch
mm-pageblock-flags-remove-pb_migratetype_bits-pb_migrate_end.patch
mm-page_alloc-find_large_buddy-from-start_pfn-aligned-order.patch
mm-page_alloc-find_large_buddy-from-start_pfn-aligned-order-v2.patch