From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 42EBC38F22F for ; Thu, 26 Mar 2026 01:42:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774489378; cv=none; b=px2ejrrDj45B2bsXGN4BMVqsW3Ah92i+dsLoGOjcaeuDRirwUnNGs76koa/SmxIWDz+OsjPhmiZlGsCzQu4gM0OxBkW5yPdKS/kDB3orHbDNu4+Dk+3udmrS0803NPjrXBSWAGp6e1QHu9MHIUqjVs5fLjrNC81aAdXuytrce4M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774489378; c=relaxed/simple; bh=UDdXKYliXPpLglc/1zuafZ06vZVSzpzGFXJwCRsMb5Q=; h=Date:To:From:Subject:Message-Id; b=AwfXDRfGya0qZ8fNH4bc8eawuH61FU3l2Bfv5hnOcu0DquZaUx48qEnIg3CKeu8JzsyvhKr+UasiBD58M6KY5USqWwRXRWapUd56cj/qsekWNU++ZtCW8OtddTLFUbjpQ5nlQDcFnyCerY603XvE+wNPK/5DAwI9m4LJ/fznfFc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=Bk1VYdcm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="Bk1VYdcm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C94F0C4CEF7; Thu, 26 Mar 2026 01:42:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1774489377; bh=UDdXKYliXPpLglc/1zuafZ06vZVSzpzGFXJwCRsMb5Q=; h=Date:To:From:Subject:From; b=Bk1VYdcmlEhScIY9dJbipA9INsq5cgP4jlGQNfr+GLY6H8oJnfg8qHFa+4JJr5E6I acY4uZyjg5UHem4QToAabNmn5MzrnoUCrzLZ6evocUFocxG6dxUNIwgXJWZWjKUg0E 4VEQGKg1f6lms+ZcSUCX71dgJKqzqlCRzu9Br7i0= Date: Wed, 25 Mar 2026 18:42:57 -0700 To: mm-commits@vger.kernel.org,willy@infradead.org,ryan.roberts@arm.com,npache@redhat.com,ljs@kernel.org,liam.howlett@oracle.com,lance.yang@linux.dev,hughd@google.com,dev.jain@arm.com,david@kernel.org,bas@dfinity.org,baolin.wang@linux.alibaba.com,baohua@kernel.org,adam.bratschikaye@dfinity.org,ziy@nvidia.com,akpm@linux-foundation.org From: Andrew Morton Subject: [folded-merged] selftests-mm-add-folio_split-and-filemap_get_entry-race-test-fix-2.patch removed from -mm tree Message-Id: <20260326014257.C94F0C4CEF7@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: selftests/mm: fix sashiko complains on folio_split_race_test has been removed from the -mm tree. Its filename was selftests-mm-add-folio_split-and-filemap_get_entry-race-test-fix-2.patch This patch was dropped because it was folded into selftests-mm-add-folio_split-and-filemap_get_entry-race-test.patch ------------------------------------------------------ From: Zi Yan Subject: selftests/mm: fix sashiko complains on folio_split_race_test Date: Sun, 22 Mar 2026 19:53:54 -0400 1. use PRIu64 for uint64_t 2. add pthread_barrier_t to ensure main thread starts to punch holes when all reader threads are spawned. Link: https://lkml.kernel.org/r/B0985749-939D-4256-B9B9-C54C0734CF72@nvidia.com Signed-off-by: Zi Yan Cc: Adam Bratschi-Kaye Cc: Baolin Wang Cc: Barry Song Cc: Bas van Dijk Cc: David Hildenbrand Cc: Dev Jain Cc: Hugh Dickins Cc: Lance Yang Cc: Liam Howlett Cc: Lorenzo Stoakes Cc: Matthew Wilcox (Oracle) Cc: Nico Pache Cc: Ryan Roberts Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/folio_split_race_test.c | 17 +++++++++-- 1 file changed, 14 insertions(+), 3 deletions(-) --- a/tools/testing/selftests/mm/folio_split_race_test.c~selftests-mm-add-folio_split-and-filemap_get_entry-race-test-fix-2 +++ a/tools/testing/selftests/mm/folio_split_race_test.c @@ -46,6 +46,7 @@ struct shared_ctl { atomic_uint_fast32_t stop; atomic_size_t reader_failures; atomic_size_t reader_verified; + pthread_barrier_t barrier; }; static void fill_page(unsigned char *base, size_t page_idx) @@ -78,14 +79,14 @@ static bool check_page(unsigned char *ba } if (all_zero) { ksft_print_msg( - "CORRUPTED: page %zu (huge page %zu) is ALL ZEROS\n", + "CORRUPTED: page %zu (huge page %" PRIu64 ") is ALL ZEROS\n", page_idx, (page_idx * page_size) / pmd_pagesize); } else { ksft_print_msg( - "CORRUPTED: page %zu (huge page %zu): expected idx %zu, got %lu\n", + "CORRUPTED: page %zu (huge page %" PRIu64 "): expected idx %zu, got %" PRIu64 "\n", page_idx, (page_idx * page_size) / pmd_pagesize, - page_idx, (unsigned long)got_idx); + page_idx, got_idx); } return false; } @@ -110,6 +111,8 @@ static void *reader_thread(void *arg) atomic_size_t *verified = ra->verified; size_t page_idx; + pthread_barrier_wait(&ctl->barrier); + while (atomic_load_explicit(&ctl->stop, memory_order_acquire) == 0) { for (page_idx = (size_t)tid; page_idx < TOTAL_PAGES; page_idx += NUM_READER_THREADS) { @@ -178,8 +181,14 @@ static size_t run_iteration(void) if (!check_huge_shmem(mmap_base, NR_PMD_PAGE, pmd_pagesize)) ksft_exit_fail_msg("No shmem THP is allocated\n"); + if (pthread_barrier_init(&ctl.barrier, NULL, NUM_READER_THREADS + 1) != 0) + ksft_exit_fail_msg("pthread_barrier_init failed\n"); + create_readers(threads, args, mmap_base, &ctl); + /* Wait for all reader threads to be ready before punching holes. */ + pthread_barrier_wait(&ctl.barrier); + for (i = 0; i < TOTAL_PAGES; i++) { if (i % PUNCH_INTERVAL != 0) continue; @@ -198,6 +207,8 @@ static size_t run_iteration(void) for (i = 0; i < NUM_READER_THREADS; i++) pthread_join(threads[i], NULL); + pthread_barrier_destroy(&ctl.barrier); + reader_failures = atomic_load_explicit(&ctl.reader_failures, memory_order_acquire); reader_verified = atomic_load_explicit(&ctl.reader_verified, _ Patches currently in -mm which might be from ziy@nvidia.com are selftests-mm-add-folio_split-and-filemap_get_entry-race-test.patch