From patchwork Fri Jun 18 03:44:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Feng Tang X-Patchwork-Id: 12330053 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 ED595C49361 for ; Fri, 18 Jun 2021 03:45:05 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A027C613B9 for ; Fri, 18 Jun 2021 03:45:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A027C613B9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 406636B0075; Thu, 17 Jun 2021 23:45:05 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3DADB6B007B; Thu, 17 Jun 2021 23:45:05 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 2A4EC6B007D; Thu, 17 Jun 2021 23:45:05 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0031.hostedemail.com [216.40.44.31]) by kanga.kvack.org (Postfix) with ESMTP id E967E6B0075 for ; Thu, 17 Jun 2021 23:45:04 -0400 (EDT) Received: from smtpin31.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 819CC180AD817 for ; Fri, 18 Jun 2021 03:45:04 +0000 (UTC) X-FDA: 78265453728.31.9FF5CFD Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by imf12.hostedemail.com (Postfix) with ESMTP id 40A0B37A for ; Fri, 18 Jun 2021 03:45:03 +0000 (UTC) IronPort-SDR: XrRESjH5YprNfuLUCRuRCe3ZLLKlZU91yI5TgRLT+0zr1CPa5RI+DXBey791Rh/0NRyk+RthUX KOExISKpO4eg== X-IronPort-AV: E=McAfee;i="6200,9189,10018"; a="203467023" X-IronPort-AV: E=Sophos;i="5.83,281,1616482800"; d="scan'208";a="203467023" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Jun 2021 20:45:02 -0700 IronPort-SDR: APnfItg5ysWfcPVObQ0YruQPbopM7gCClGv2wkJQNQG0c8GwLD2o2wzOrRx+6Br9IzmfgHOfsl 7csPe3W1MI7g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,281,1616482800"; d="scan'208";a="485539846" Received: from shbuild999.sh.intel.com ([10.239.147.94]) by orsmga001.jf.intel.com with ESMTP; 17 Jun 2021 20:44:57 -0700 From: Feng Tang To: linux-mm@kvack.org, Andrew Morton , Michal Hocko , David Rientjes , Dave Hansen , Ben Widawsky Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, Andrea Arcangeli , Mel Gorman , Mike Kravetz , Randy Dunlap , Vlastimil Babka , Andi Kleen , Dan Williams , ying.huang@intel.com, Feng Tang Subject: [PATCH v5 -mm 3/6] mm/mempolicy: enable page allocation for MPOL_PREFERRED_MANY for general cases Date: Fri, 18 Jun 2021 11:44:41 +0800 Message-Id: <1623987884-43576-4-git-send-email-feng.tang@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1623987884-43576-1-git-send-email-feng.tang@intel.com> References: <1623987884-43576-1-git-send-email-feng.tang@intel.com> X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 40A0B37A X-Stat-Signature: bpibk1tnbd1uqhwcwr4con3ui71zaxef Authentication-Results: imf12.hostedemail.com; dkim=none; spf=none (imf12.hostedemail.com: domain of feng.tang@intel.com has no SPF policy when checking 192.55.52.93) smtp.mailfrom=feng.tang@intel.com; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=intel.com (policy=none) X-HE-Tag: 1623987903-608631 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: From: Ben Widawsky In order to support MPOL_PREFERRED_MANY which is used by set_mempolicy(2), mbind(2), enable both alloc_pages() and alloc_pages_vma() by using alloc_page_preferred_many(). Signed-off-by: Ben Widawsky Signed-off-by: Feng Tang --- mm/mempolicy.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/mm/mempolicy.c b/mm/mempolicy.c index d17bf018efcc..9dce67fc9bb6 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2207,6 +2207,12 @@ struct page *alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma, goto out; } + if (pol->mode == MPOL_PREFERRED_MANY) { + page = alloc_page_preferred_many(gfp, order, pol); + mpol_cond_put(pol); + goto out; + } + if (unlikely(IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) && hugepage)) { int hpage_node = node; @@ -2286,6 +2292,8 @@ struct page *alloc_pages(gfp_t gfp, unsigned order) */ if (pol->mode == MPOL_INTERLEAVE) page = alloc_page_interleave(gfp, order, interleave_nodes(pol)); + else if (pol->mode == MPOL_PREFERRED_MANY) + page = alloc_page_preferred_many(gfp, order, pol); else page = __alloc_pages(gfp, order, policy_node(gfp, pol, numa_node_id()),