+ selftests-mm-run_vmtestssh-dont-gate-thp-and-ksm-tests-on-have_hugepages.patch added to mm-new branch

+ selftests-mm-run_vmtestssh-dont-gate-thp-and-ksm-tests-on-have_hugepages.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: selftests/mm: run_vmtests.sh: don't gate THP and KSM tests on HAVE_HUGEPAGES
has been added to the -mm mm-new branch.  Its filename is
     selftests-mm-run_vmtestssh-dont-gate-thp-and-ksm-tests-on-have_hugepages.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-mm-run_vmtestssh-dont-gate-thp-and-ksm-tests-on-have_hugepages.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via various
branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there most days

------------------------------------------------------
From: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
Subject: selftests/mm: run_vmtests.sh: don't gate THP and KSM tests on HAVE_HUGEPAGES
Date: Mon, 11 May 2026 19:27:49 +0300

HAVE_HUGEPAGES indicates availability of free HugeTLB pages.  It should
not be used to gate KSM test that merges transparent huge pages or
split_huge_page_test.

Remove check for HAVE_HUGEPAGES when running these tests.

Link: https://lore.kernel.org/20260511162840.375890-6-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Tested-by: Li Wang <li.wang@linux.dev>
Reviewed-by: Li Wang <li.wang@linux.dev>
Tested-by: Luiz Capitulino <luizcap@redhat.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Donet Tom <donettom@linux.ibm.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Liam Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Sarthak Sharma <sarthak.sharma@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/mm/run_vmtests.sh |   22 ++++++++------------
 1 file changed, 9 insertions(+), 13 deletions(-)

--- a/tools/testing/selftests/mm/run_vmtests.sh~selftests-mm-run_vmtestssh-dont-gate-thp-and-ksm-tests-on-have_hugepages
+++ a/tools/testing/selftests/mm/run_vmtests.sh
@@ -437,9 +437,7 @@ CATEGORY="memfd_secret" run_test ./memfd
 fi
 
 # KSM KSM_MERGE_TIME_HUGE_PAGES test with size of 100
-if [ "${HAVE_HUGEPAGES}" = "1" ]; then
-	CATEGORY="ksm" run_test ./ksm_tests -H -s 100
-fi
+CATEGORY="ksm" run_test ./ksm_tests -H -s 100
 # KSM KSM_MERGE_TIME test with size of 100
 CATEGORY="ksm" run_test ./ksm_tests -P -s 100
 # KSM MADV_MERGEABLE test with 10 identical pages
@@ -492,16 +490,14 @@ CATEGORY="thp" run_test ./khugepaged -s
 
 # Try to create XFS if not provided
 if [ -z "${SPLIT_HUGE_PAGE_TEST_XFS_PATH}" ]; then
-    if [ "${HAVE_HUGEPAGES}" = "1" ]; then
-	if test_selected "thp"; then
-	    if grep xfs /proc/filesystems &>/dev/null; then
-		XFS_IMG=$(mktemp /tmp/xfs_img_XXXXXX)
-		SPLIT_HUGE_PAGE_TEST_XFS_PATH=$(mktemp -d /tmp/xfs_dir_XXXXXX)
-		truncate -s 314572800 ${XFS_IMG}
-		mkfs.xfs -q ${XFS_IMG}
-		mount -o loop ${XFS_IMG} ${SPLIT_HUGE_PAGE_TEST_XFS_PATH}
-		MOUNTED_XFS=1
-	    fi
+    if test_selected "thp"; then
+	if grep xfs /proc/filesystems &>/dev/null; then
+	    XFS_IMG=$(mktemp /tmp/xfs_img_XXXXXX)
+	    SPLIT_HUGE_PAGE_TEST_XFS_PATH=$(mktemp -d /tmp/xfs_dir_XXXXXX)
+	    truncate -s 314572800 ${XFS_IMG}
+	    mkfs.xfs -q ${XFS_IMG}
+	    mount -o loop ${XFS_IMG} ${SPLIT_HUGE_PAGE_TEST_XFS_PATH}
+	    MOUNTED_XFS=1
 	fi
     fi
 fi
_

Patches currently in -mm which might be from rppt@kernel.org are

maintainers-add-tree-for-kdump-and-kexec.patch
maintainers-add-kexec-list-to-live-update-entry.patch
sh-fix-fallout-from-zero_page-consolidation.patch
selftests-mm-hugetlb-read-hwpoison-add-sigbus-handler.patch
selftests-mm-migration-dont-assume-huge-page-is-twomeg.patch
selftests-mm-migration-make-nthreads-represent-number-of-working-threads.patch
selftests-mm-migration-properly-cleanup-forked-processes.patch
selftests-mm-run_vmtestssh-dont-gate-thp-and-ksm-tests-on-have_hugepages.patch
selftests-mm-merge-map_hugetlb-into-hugepage-mmap.patch
selftests-mm-rename-hugepage-tests-to-hugetlb.patch
selftests-mm-hugetlb-shm-use-kselftest-framework.patch
selftests-mm-hugetlb-vmemmap-use-kselftest-framework.patch
selftests-mm-hugetlb-madvise-use-kselftest-framework.patch
selftests-mm-hugetlb_madv_vs_map-use-kselftest-framework.patch
selftests-mm-hugetlb-read-hwpoison-use-kselftest-framework.patch
selftests-mm-khugepaged-group-tests-in-an-array.patch
selftests-mm-khugepaged-use-ksefltest-framework.patch
selftests-mm-ksm_tests-use-kselftest-framework.patch
selftests-mm-protection_keys-use-descriptive-test-names-in-the-output.patch
selftests-mm-protection_keys-use-kselftest-framework.patch
selftests-mm-uffd-common-use-kselftest-framework.patch
selftests-mm-uffd-stress-use-kselftest-framework.patch
selftests-mm-uffd-unit-tests-use-kselftest-framework.patch
selftests-mm-va_high_addr_switch-use-kselftest-framework.patch
selftests-mm-add-atexit-and-signal-handlers-to-thp_settings.patch
selftests-mm-rename-thp_settings-to-hugepage_settings.patch
selftests-mm-move-hugetlb-helpers-to-hugepage_settings.patch
selftests-mm-hugepage_settings-use-unsigned-long-in-detect_hugetlb_page_size.patch
selftests-mm-hugepage_settings-add-apis-to-get-and-set-nr_hugepages.patch
selftests-mm-hugepage_settings-rename-and-rework-get_free_hugepages.patch
selftests-mm-hugepage_settings-add-apis-for-hugetlb-setup-and-teardown.patch
selftests-mm-move-read_file-read_num-and-write_num-to-vm_util.patch
selftests-mm-vm_util-add-helpers-to-set-and-restore-shm-limits.patch
selftests-mm-compaction_test-use-hugetlb-helpers.patch
selftests-mm-cow-add-setup-of-hugetlb-pages.patch
selftests-mm-gup_longterm-add-setup-of-hugetlb-pages.patch
selftests-mm-gup_test-add-setup-of-hugetlb-pages.patch
selftests-mm-hmm-tests-add-setup-of-hugetlb-pages.patch
selftests-mm-hugepage_dio-add-setup-of-hugetlb-pages.patch
selftests-mm-hugetlb_fault_after_madv-add-setup-of-hugetlb-pages.patch
selftests-mm-hugetlb-madvise-add-setup-of-hugetlb-pages.patch
selftests-mm-hugetlb_madv_vs_map-add-setup-of-hugetlb-pages.patch
selftests-mm-hugetlb-mmap-add-setup-of-hugetlb-pages.patch
selftests-mm-hugetlb-mremap-add-setup-of-hugetlb-pages.patch
selftests-mm-hugetlb-shm-add-setup-of-hugetlb-pages.patch
selftests-mm-hugetlb-soft-offline-add-setup-of-hugetlb-pages.patch
selftests-mm-hugetlb-vmemmap-add-setup-of-hugetlb-pages.patch
selftests-mm-migration-add-setup-of-hugetlb-pages.patch
selftests-mm-pagemap_ioctl-add-setup-of-hugetlb-pages.patch
selftests-mm-protection_keys-use-library-code-for-hugetlb-setup.patch
selftests-mm-thuge-gen-add-setup-of-hugetlb-pages.patch
selftests-mm-uffd-stress-use-hugetlb_save-and-alloc-huge-pages.patch
selftests-mm-uffd-unit-tests-add-setup-of-hugetlb-pages.patch
selftests-mm-uffd-wp-mremap-add-setup-of-hugetlb-pages.patch
selftests-mm-va_high_addr_switch-add-setup-of-hugetlb-pages.patch
selftests-mm-va_high_addr_switchsh-drop-huge-pages-setup.patch
selftests-mm-run_vmtestssh-free-memory-if-available-memory-is-low.patch
selftests-mm-run_vmtestssh-drop-detection-and-setup-of-hugetlb.patch