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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19B9DC43334 for ; Fri, 3 Jun 2022 13:44:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244789AbiFCNof (ORCPT ); Fri, 3 Jun 2022 09:44:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244781AbiFCNo3 (ORCPT ); Fri, 3 Jun 2022 09:44:29 -0400 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 317013A1A3 for ; Fri, 3 Jun 2022 06:44:13 -0700 (PDT) Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 253AacwD001424; Fri, 3 Jun 2022 13:44:02 GMT 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=6JnFH6Ge2DqnYCy9p4M/QpIYwkZi2m2iZlpzOFDI2qU=; b=bN2bC5I0eXblOAEaGNm11SXMP/VWA4sA188NRfcEFNnqyumOWRm8ARhUjOnW+gmiNrDH FiywIb8w/NZvE130mx//VhfTxO4itfMSXWHeZSF/CvsIBDQAFqhcwYbyRZhxYSo15G0Z bEUGpTDefxG230zAK80qPqtcwpCeAvwwdbgIqBKANubqK8cvIJJh5//O/XZNK0Ug3sQl sXOMeAbrFS+l46YlA19/EvESTF9qJti5nWCHqJ9c9XJoEU5np9SCJlWHUxly3C67DEVP E9vqSRAepOYpl+MyiQxBfqjq7jXEUczhObDn/fqSXgSqAaY/bm8bfesYARKVhaQ20KUA 0Q== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3gfeksdewt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 03 Jun 2022 13:44:02 +0000 Received: from m0187473.ppops.net (m0187473.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 253BZDYD031309; Fri, 3 Jun 2022 13:44:01 GMT Received: from ppma01dal.us.ibm.com (83.d6.3fa9.ip4.static.sl-reverse.com [169.63.214.131]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3gfeksdew8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 03 Jun 2022 13:44:01 +0000 Received: from pps.filterd (ppma01dal.us.ibm.com [127.0.0.1]) by ppma01dal.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 253Da8xw005528; Fri, 3 Jun 2022 13:44:00 GMT Received: from b01cxnp22036.gho.pok.ibm.com (b01cxnp22036.gho.pok.ibm.com [9.57.198.26]) by ppma01dal.us.ibm.com with ESMTP id 3gcxt62yjn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 03 Jun 2022 13:44:00 +0000 Received: from b01ledav004.gho.pok.ibm.com (b01ledav004.gho.pok.ibm.com [9.57.199.109]) by b01cxnp22036.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 253DhxoG3801862 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 3 Jun 2022 13:43:59 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 63A86112062; Fri, 3 Jun 2022 13:43:59 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 981C2112063; Fri, 3 Jun 2022 13:43:51 +0000 (GMT) Received: from skywalker.ibmuc.com (unknown [9.43.93.173]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP; Fri, 3 Jun 2022 13:43:51 +0000 (GMT) From: "Aneesh Kumar K.V" To: linux-mm@kvack.org, akpm@linux-foundation.org Cc: Wei Xu , Huang Ying , Greg Thelen , Yang Shi , Davidlohr Bueso , Tim C Chen , Brice Goglin , Michal Hocko , Linux Kernel Mailing List , Hesham Almatary , Dave Hansen , Jonathan Cameron , Alistair Popple , Dan Williams , Feng Tang , Jagdish Gediya , Baolin Wang , David Rientjes , "Aneesh Kumar K.V" Subject: [PATCH v5 5/9] mm/demotion/dax/kmem: Set node's memory tier to MEMORY_TIER_PMEM Date: Fri, 3 Jun 2022 19:12:33 +0530 Message-Id: <20220603134237.131362-6-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220603134237.131362-1-aneesh.kumar@linux.ibm.com> References: <20220603134237.131362-1-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: Ng9BJzbA3aQjPHA8NpZ2baLKJ6Aib5bK X-Proofpoint-ORIG-GUID: XdqiEYOM5eBOErlTnTvrzuuKbVYkljLC X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.874,Hydra:6.0.517,FMLib:17.11.64.514 definitions=2022-06-03_04,2022-06-03_01,2022-02-23_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 clxscore=1015 lowpriorityscore=0 mlxlogscore=999 malwarescore=0 suspectscore=0 impostorscore=0 bulkscore=0 mlxscore=0 phishscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2204290000 definitions=main-2206030059 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org By default, all nodes are assigned to DEFAULT_MEMORY_TIER which is memory tier 1 which is designated for nodes with DRAM, so it is not the right tier for dax devices. Set dax kmem device node's tier to MEMORY_TIER_PMEM, In future, support should be added to distinguish the dax-devices which should not be MEMORY_TIER_PMEM and right memory tier should be set for them. Signed-off-by: Jagdish Gediya Signed-off-by: Aneesh Kumar K.V --- drivers/dax/kmem.c | 4 ++++ mm/memory-tiers.c | 1 + 2 files changed, 5 insertions(+) diff --git a/drivers/dax/kmem.c b/drivers/dax/kmem.c index a37622060fff..7a11c387fbbc 100644 --- a/drivers/dax/kmem.c +++ b/drivers/dax/kmem.c @@ -11,6 +11,7 @@ #include #include #include +#include #include "dax-private.h" #include "bus.h" @@ -147,6 +148,9 @@ static int dev_dax_kmem_probe(struct dev_dax *dev_dax) dev_set_drvdata(dev, data); +#ifdef CONFIG_TIERED_MEMORY + node_set_memory_tier(numa_node, MEMORY_TIER_PMEM); +#endif return 0; err_request_mem: diff --git a/mm/memory-tiers.c b/mm/memory-tiers.c index 0d05c0bfb79b..9c82cf4c4bca 100644 --- a/mm/memory-tiers.c +++ b/mm/memory-tiers.c @@ -364,6 +364,7 @@ int node_set_memory_tier(int node, int tier) return ret; } +EXPORT_SYMBOL_GPL(node_set_memory_tier); /** * next_demotion_node() - Get the next node in the demotion path -- 2.36.1