The quilt patch titled Subject: mm/damon/tests/core-kunit: handle alloc failures in damon_test_ops_registration() has been removed from the -mm tree. Its filename was mm-damon-tests-core-kunit-handle-alloc-failures-in-damon_test_ops_registration.patch
This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------ From: SeongJae Park sj@kernel.org Subject: mm/damon/tests/core-kunit: handle alloc failures in damon_test_ops_registration() Date: Sat, 1 Nov 2025 11:20:03 -0700
damon_test_ops_registration() is assuming all dynamic memory allocation in it will succeed. Those are indeed likely in the real use cases since those allocations are too small to fail, but theoretically those could fail. In the case, inappropriate memory access can happen. Fix it by appropriately cleanup pre-allocated memory and skip the execution of the remaining tests in the failure cases.
Link: https://lkml.kernel.org/r/20251101182021.74868-10-sj@kernel.org Fixes: 4f540f5ab4f2 ("mm/damon/core-test: add a kunit test case for ops registration") Signed-off-by: SeongJae Park sj@kernel.org Cc: Brendan Higgins brendan.higgins@linux.dev Cc: David Gow davidgow@google.com Cc: Kefeng Wang wangkefeng.wang@huawei.com Cc: stable@vger.kernel.org [5.19+] Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
mm/damon/tests/core-kunit.h | 3 +++ 1 file changed, 3 insertions(+)
--- a/mm/damon/tests/core-kunit.h~mm-damon-tests-core-kunit-handle-alloc-failures-in-damon_test_ops_registration +++ a/mm/damon/tests/core-kunit.h @@ -320,6 +320,9 @@ static void damon_test_ops_registration( struct damon_operations ops = {.id = DAMON_OPS_VADDR}, bak; bool need_cleanup = false;
+ if (!c) + kunit_skip(test, "ctx alloc fail"); + /* DAMON_OPS_VADDR is registered only if CONFIG_DAMON_VADDR is set */ if (!damon_is_registered_ops(DAMON_OPS_VADDR)) { bak.id = DAMON_OPS_VADDR; _
Patches currently in -mm which might be from sj@kernel.org are
mm-damon-tests-core-kunit-remove-dynamic-allocs-on-damos_test_commit_filter.patch mm-damon-tests-core-kunit-split-out-damos_test_commit_filter-core-logic.patch mm-damon-tests-core-kunit-extend-damos_test_commit_filter_for-for-union-fields.patch mm-damon-tests-core-kunit-add-test-cases-to-damos_test_commit_filter.patch mm-damon-tests-core-kunit-add-damos_commit_quota_goal-test.patch mm-damon-tests-core-kunit-add-damos_commit_quota_goals-test.patch mm-damon-tests-core-kunit-add-damos_commit_quota-test.patch mm-damon-core-pass-migrate_dests-to-damos_commit_dests.patch mm-damon-tests-core-kunit-add-damos_commit_dests-test.patch mm-damon-tests-core-kunit-add-damos_commit-test.patch mm-damon-tests-core-kunit-add-damon_commit_target_regions-test.patch mm-damon-rename-damos-core-filter-helpers-to-have-word-core.patch mm-damon-rename-damos-filters-to-damos-core_filters.patch mm-damon-vaddr-cleanup-using-pmd_trans_huge_lock.patch mm-damon-vaddr-use-vm_normal_folio_pmd-instead-of-damon_get_folio.patch mm-damon-vaddr-consistently-use-only-pmd_entry-for-damos_migrate.patch mm-damon-tests-core-kunit-remove-damon_min_region-redefinition.patch selftests-damon-sysfspy-merge-damon-status-dumping-into-commitment-assertion.patch docs-mm-damon-maintainer-profile-fix-a-typo-on-mm-untable-link.patch docs-mm-damon-maintainer-profile-fix-grammartical-errors.patch