From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8EA3C433DF for ; Wed, 12 Aug 2020 06:34:40 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 6B21820768 for ; Wed, 12 Aug 2020 06:34:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="osAv2Jy+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6B21820768 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 180DD8D0008; Wed, 12 Aug 2020 02:34:40 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 10A2C8D0001; Wed, 12 Aug 2020 02:34:40 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id F3A2C8D0008; Wed, 12 Aug 2020 02:34:39 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0146.hostedemail.com [216.40.44.146]) by kanga.kvack.org (Postfix) with ESMTP id DE7E28D0001 for ; Wed, 12 Aug 2020 02:34:39 -0400 (EDT) Received: from smtpin11.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 9C6E852C5 for ; Wed, 12 Aug 2020 06:34:39 +0000 (UTC) X-FDA: 77140953078.11.board00_5e093d026fe9 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin11.hostedemail.com (Postfix) with ESMTP id 6BA9C180F8B80 for ; Wed, 12 Aug 2020 06:34:39 +0000 (UTC) X-HE-Tag: board00_5e093d026fe9 X-Filterd-Recvd-Size: 5982 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by imf14.hostedemail.com (Postfix) with ESMTP for ; Wed, 12 Aug 2020 06:34:38 +0000 (UTC) Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 07C6Wv6u021056; Wed, 12 Aug 2020 02:34:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=w2O0K40T6vFDlHS9Tu0UhSkYgj6D2CMlRHQso96e5oc=; b=osAv2Jy+u5kF0W8VcMi2QA1CBTpAOIbHJbYbZBztRwOULjIR2zJlmMixHM7uaEH8dBq5 KJtndtEGt/Rtt2zKdPYXxDyuUmKcqXfpfivIpVpvN0psBGfuaEUwTKMeEmEUd0ztHt6H MprCilfNDn/nt78kekAMEz3QbjtVwLrWzGvi8vESPrN71esdcX8xnQkwUIzc3ly4aj81 zhBqBMhmMlLFMJlgjeCYraFwz968WNPRseNa9gSDuNRQIcel6WWSlFVhHlA5Y/6cZA69 9Hu4cdy0F3e7fFMHdyDg1mf2blZiXOUDpChO3dedyPv9P5hRiYy6/82V/g6O5W6P8jlP Kw== Received: from ppma01dal.us.ibm.com (83.d6.3fa9.ip4.static.sl-reverse.com [169.63.214.131]) by mx0a-001b2d01.pphosted.com with ESMTP id 32vakp106w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 12 Aug 2020 02:34:33 -0400 Received: from pps.filterd (ppma01dal.us.ibm.com [127.0.0.1]) by ppma01dal.us.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 07C6GFUf027849; Wed, 12 Aug 2020 06:34:32 GMT Received: from b03cxnp07029.gho.boulder.ibm.com (b03cxnp07029.gho.boulder.ibm.com [9.17.130.16]) by ppma01dal.us.ibm.com with ESMTP id 32skp9f6j0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 12 Aug 2020 06:34:32 +0000 Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp07029.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 07C6YVm063701326 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 12 Aug 2020 06:34:31 GMT Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0EBB2136051; Wed, 12 Aug 2020 06:34:31 +0000 (GMT) Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id AFC02136053; Wed, 12 Aug 2020 06:34:28 +0000 (GMT) Received: from skywalker.ibmuc.com (unknown [9.85.71.109]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 12 Aug 2020 06:34:28 +0000 (GMT) From: "Aneesh Kumar K.V" To: linux-mm@kvack.org, akpm@linux-foundation.org Cc: mpe@ellerman.id.au, linuxppc-dev@lists.ozlabs.org, Anshuman Khandual , "Aneesh Kumar K.V" Subject: [PATCH 05/16] debug_vm_pgtable/savedwrite: Enable savedwrite test with CONFIG_NUMA_BALANCING Date: Wed, 12 Aug 2020 12:03:47 +0530 Message-Id: <20200812063358.369514-5-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200812063358.369514-1-aneesh.kumar@linux.ibm.com> References: <20200812063358.369514-1-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-08-11_19:2020-08-11,2020-08-11 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 adultscore=0 impostorscore=0 phishscore=0 mlxlogscore=862 lowpriorityscore=0 bulkscore=0 spamscore=0 malwarescore=0 suspectscore=0 clxscore=1015 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2008120047 X-Rspamd-Queue-Id: 6BA9C180F8B80 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Saved write support was added to track the write bit of a pte after marki= ng the pte protnone. This was done so that AUTONUMA can convert a write pte to p= rotnone and still track the old write bit. When converting it back we set the pte= write bit correctly thereby avoiding a write fault again. Hence enable the test= only when CONFIG_NUMA_BALANCING is enabled. Signed-off-by: Aneesh Kumar K.V --- mm/debug_vm_pgtable.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c index 679bb3d289a3..de8a62d0a931 100644 --- a/mm/debug_vm_pgtable.c +++ b/mm/debug_vm_pgtable.c @@ -110,6 +110,7 @@ static void __init pte_advanced_tests(struct mm_struc= t *mm, WARN_ON(pte_young(pte)); } =20 +#ifdef CONFIG_NUMA_BALANCING static void __init pte_savedwrite_tests(unsigned long pfn, pgprot_t prot= ) { pte_t pte =3D pfn_pte(pfn, prot); @@ -118,6 +119,8 @@ static void __init pte_savedwrite_tests(unsigned long= pfn, pgprot_t prot) WARN_ON(!pte_savedwrite(pte_mk_savedwrite(pte_clear_savedwrite(pte)))); WARN_ON(pte_savedwrite(pte_clear_savedwrite(pte_mk_savedwrite(pte)))); } +#endif + #ifdef CONFIG_TRANSPARENT_HUGEPAGE static void __init pmd_basic_tests(unsigned long pfn, pgprot_t prot) { @@ -221,6 +224,7 @@ static void __init pmd_huge_tests(pmd_t *pmdp, unsign= ed long pfn, pgprot_t prot) WARN_ON(!pmd_none(pmd)); } =20 +#ifdef CONFIG_NUMA_BALANCING static void __init pmd_savedwrite_tests(unsigned long pfn, pgprot_t prot= ) { pmd_t pmd =3D pfn_pmd(pfn, prot); @@ -229,6 +233,7 @@ static void __init pmd_savedwrite_tests(unsigned long= pfn, pgprot_t prot) WARN_ON(!pmd_savedwrite(pmd_mk_savedwrite(pmd_clear_savedwrite(pmd)))); WARN_ON(pmd_savedwrite(pmd_clear_savedwrite(pmd_mk_savedwrite(pmd)))); } +#endif =20 #ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD static void __init pud_basic_tests(unsigned long pfn, pgprot_t prot) @@ -1005,8 +1010,10 @@ static int __init debug_vm_pgtable(void) pmd_huge_tests(pmdp, pmd_aligned, prot); pud_huge_tests(pudp, pud_aligned, prot); =20 +#ifdef CONFIG_NUMA_BALANCING pte_savedwrite_tests(pte_aligned, prot); pmd_savedwrite_tests(pmd_aligned, prot); +#endif =20 pte_unmap_unlock(ptep, ptl); =20 --=20 2.26.2