{"id":805132,"url":"http://patchwork.ozlabs.org/api/1.2/patches/805132/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/fc2ad536-a772-f006-43c4-1ddf6e296ebb@linux.vnet.ibm.com/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/1.2/projects/2/?format=json","name":"Linux PPC development","link_name":"linuxppc-dev","list_id":"linuxppc-dev.lists.ozlabs.org","list_email":"linuxppc-dev@lists.ozlabs.org","web_url":"https://github.com/linuxppc/wiki/wiki","scm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git","webscm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/","list_archive_url":"https://lore.kernel.org/linuxppc-dev/","list_archive_url_format":"https://lore.kernel.org/linuxppc-dev/{}/","commit_url_format":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}"},"msgid":"","list_archive_url":"https://lore.kernel.org/linuxppc-dev/fc2ad536-a772-f006-43c4-1ddf6e296ebb@linux.vnet.ibm.com/","date":"2017-08-23T17:18:43","name":"powerpc/pseries: Don't attempt to acquire drc during memory hot add for assigned lmbs","commit_ref":"afb5519fdb346201728040cab4e08ce53e7ff4fd","pull_url":null,"state":"accepted","archived":false,"hash":"7ebbb885e582e0912295cc6c6dc0904cf7265315","submitter":{"id":67553,"url":"http://patchwork.ozlabs.org/api/1.2/people/67553/?format=json","name":"John Allen","email":"jallen@linux.vnet.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/fc2ad536-a772-f006-43c4-1ddf6e296ebb@linux.vnet.ibm.com/mbox/","series":[],"comments":"http://patchwork.ozlabs.org/api/patches/805132/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/805132/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":["patchwork-incoming@ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Received":["from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xcvMr0THCz9ryv\n\tfor ;\n\tThu, 24 Aug 2017 03:20:56 +1000 (AEST)","from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xcvMq67HKzDrJp\n\tfor ;\n\tThu, 24 Aug 2017 03:20:55 +1000 (AEST)","from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com\n\t[148.163.156.1])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xcvKT6Bj9zDrJg\n\tfor ;\n\tThu, 24 Aug 2017 03:18:52 +1000 (AEST)","from pps.filterd (m0098394.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv7NHInGE133733\n\tfor ; Wed, 23 Aug 2017 13:18:50 -0400","from e19.ny.us.ibm.com (e19.ny.us.ibm.com [129.33.205.209])\n\tby mx0a-001b2d01.pphosted.com with ESMTP id 2chafkv30k-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor ; Wed, 23 Aug 2017 13:18:49 -0400","from localhost\n\tby e19.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! 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Violators will be prosecuted; \n\tWed, 23 Aug 2017 13:18:45 -0400","from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com\n\t[9.57.199.107])\n\tby b01cxnp22034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP\n\tid v7NHIj2822740996; Wed, 23 Aug 2017 17:18:45 GMT","from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 0FE0212403F;\n\tWed, 23 Aug 2017 13:16:06 -0400 (EDT)","from [9.41.92.172] (unknown [9.41.92.172])\n\tby b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP id 70686124035;\n\tWed, 23 Aug 2017 13:16:05 -0400 (EDT)"],"To":"linuxppc-dev@lists.ozlabs.org, Nathan Fontenot ","From":"John Allen ","Subject":"[PATCH] powerpc/pseries: Don't attempt to acquire drc during memory\n\thot add for assigned lmbs","Date":"Wed, 23 Aug 2017 12:18:43 -0500","User-Agent":"Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101\n\tThunderbird/52.2.1","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Language":"en-US","Content-Transfer-Encoding":"7bit","X-TM-AS-GCONF":"00","x-cbid":"17082317-0056-0000-0000-000003BAFD8D","X-IBM-SpamModules-Scores":"","X-IBM-SpamModules-Versions":"BY=3.00007598; HX=3.00000241; KW=3.00000007;\n\tPH=3.00000004; SC=3.00000224; SDB=6.00906569; UDB=6.00454395;\n\tIPR=6.00686771; \n\tBA=6.00005550; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009;\n\tZB=6.00000000; \n\tZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00016830;\n\tXFM=3.00000015; UTC=2017-08-23 17:18:46","X-IBM-AV-DETECTION":"SAVI=unused REMOTE=unused XFE=unused","x-cbparentid":"17082317-0057-0000-0000-000007F12D4F","Message-Id":"","X-Proofpoint-Virus-Version":"vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-08-23_07:, , signatures=0","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=0\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1708230262","X-BeenThere":"linuxppc-dev@lists.ozlabs.org","X-Mailman-Version":"2.1.23","Precedence":"list","List-Id":"Linux on PowerPC Developers Mail List\n\t","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org","Sender":"\"Linuxppc-dev\"\n\t"},"content":"Check if an LMB is assigned before attempting to call dlpar_acquire_drc in\norder to avoid any unnecessary rtas calls. This substantially reduces the\nrunning time of memory hot add on lpars with large amounts of memory.\n\nSigned-off-by: John Allen \n---","diff":"diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c\nindex ca9b2f4..95cf2ff 100644\n--- a/arch/powerpc/platforms/pseries/hotplug-memory.c\n+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c\n@@ -817,6 +817,9 @@ static int dlpar_memory_add_by_count(u32 lmbs_to_add, struct property *prop)\n \t\treturn -EINVAL;\n\n \tfor (i = 0; i < num_lmbs && lmbs_to_add != lmbs_added; i++) {\n+\t\tif (lmbs[i].flags & DRCONF_MEM_ASSIGNED)\n+\t\t\tcontinue;\n+\n \t\trc = dlpar_acquire_drc(lmbs[i].drc_index);\n \t\tif (rc)\n \t\t\tcontinue;\n","prefixes":[]}