From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 582CF1C3BF7 for ; Thu, 19 Mar 2026 16:07:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773936439; cv=none; b=lBQU4jJfIN93QM1LqX79ZNkyVU5U/FzBblrdbGehH2LvOvUSLKfEJngAhVyBzjPHgZ+PsxBBYV6TKWIPkXl2qSHJLQZJsRd0PjPneQ1cS7X52KjdbLJlpGfCbNw3gRDqlmQidW0rjbhMZXVWfmi0SLsEbQ1UDfxz9tRVDKf4YME= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773936439; c=relaxed/simple; bh=i0Orm/H18IqXCWNFkzGqMH/13y5R65h7giLeMa8EG9E=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=cj2Mc+i7LhN5lVlz0rcoM+26XJ7vL/lKNZr/CUyeyQ3//VouGQvKcGLbR4CBet405hcOzMSwdusBMrfLoHFdcF1yQ+SFkObPfeHfZQx4VIR5Jo433pz7NtsR2DUv9X8Wdi2VWF3/oyMTQG5o9zO0wf8h3pfyLnk5I49HnYBO6YU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=KdofRlnH; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="KdofRlnH" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1773936437; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=0LrqNwPukbVTRMqo7ScJ39KrbqrXvptUSs0I1FXiR5A=; b=KdofRlnHNuWTA7e0o4j1pH8LEHD78MHqPbry1/uLFgiWNWvRd6deIU8ZcQIWDDIv4hj/kO +git6976udmEb6CoZA7ptwCUODASGbXBtedwH3nYFFliFL76pS/GpSi9pPv5HV+gcGwYF9 XefGpW7upQaqTE/01yHlYy378gFGIi8= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-77-D8vHMPzCNlqHQmQOB7Q3KQ-1; Thu, 19 Mar 2026 12:07:13 -0400 X-MC-Unique: D8vHMPzCNlqHQmQOB7Q3KQ-1 X-Mimecast-MFC-AGG-ID: D8vHMPzCNlqHQmQOB7Q3KQ_1773936430 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 6BBA1195608E; Thu, 19 Mar 2026 16:07:09 +0000 (UTC) Received: from dell-per7425-02.rhts.eng.pek2.redhat.com (dell-per7425-02.rhts.eng.pek2.redhat.com [10.73.116.18]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 3172D30002DF; Thu, 19 Mar 2026 16:07:00 +0000 (UTC) From: Chunyu Hu To: akpm@linux-foundation.org, david@kernel.org, shuah@kernel.org, linux-mm@kvack.org, ljs@kernel.org Cc: linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, vbabka@suse.cz, rppt@kernel.org, surenb@google.com, mhocko@suse.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, lance.yang@linux.dev, chuhu@redhat.com Subject: [PATCH v4 0/5] selftests/mm: skip several tests when thp is not available Date: Fri, 20 Mar 2026 00:06:51 +0800 Message-ID: <20260319160656.1480279-1-chuhu@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 There are several tests requires transprarent hugepages, when run on thp disabled kernel such as realtime kernel, there will be false negative. Mark those tests as skip when thp is not available. Changes in v4: - patch 1 update to use thp_available instead of thp_is_enabled, suggested by ai review - removed reviewed-by and acked-by Changes in v3: - patch 1 update commit message to show the log snippet with where the fail happens, change the 'false positive' to 'false negative'. Update reviwed by - patch 2 update reviewed-by - patch 3 make write_file to void return - patch 4 and patch 5 updated reviewed-by/acked-by Changes in v2: - replace 'false postive' with 'false negative' in cover letter - patch 1 and patch 2 add reviewed-by/acked-by - new patch 3 to add write_file() in vm_util as a common helper - patch 4 removed the {} in if block, removed the write_file helper rename chunk in v1. Add reviewed-by - patch 5 move the exit chunk to the front of ksft_print_headers() as suggested by David. Add review by. Chunyu Hu (5): selftests/mm/guard-regions: skip collapse test when thp not enabled selftests/mm: soft-dirty: skip two tests when thp is not available selftests/mm: move write_file helper to vm_util selftests/mm: split_huge_page_test: skip the test when thp is not available selftests/mm: transhuge_stress: skip the test when thp not available tools/testing/selftests/mm/guard-regions.c | 4 ++++ tools/testing/selftests/mm/soft-dirty.c | 4 +++- .../selftests/mm/split_huge_page_test.c | 19 ++++----------- tools/testing/selftests/mm/thp_settings.c | 24 +------------------ tools/testing/selftests/mm/thp_settings.h | 1 - tools/testing/selftests/mm/transhuge-stress.c | 4 ++++ tools/testing/selftests/mm/vm_util.c | 16 +++++++++++++ tools/testing/selftests/mm/vm_util.h | 2 ++ 8 files changed, 34 insertions(+), 40 deletions(-) base-commit: 8a30aeb0d1b4e4aaf7f7bae72f20f2ae75385ccb -- 2.53.0