From patchwork Wed Dec 2 08:42:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Huang, Ying" X-Patchwork-Id: 11945167 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,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 1FBF2C64E8A for ; Wed, 2 Dec 2020 08:42:58 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9A71A206C0 for ; Wed, 2 Dec 2020 08:42:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A71A206C0 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 14AAD8D0005; Wed, 2 Dec 2020 03:42:57 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 121908D0001; Wed, 2 Dec 2020 03:42:57 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0111A8D0005; Wed, 2 Dec 2020 03:42:56 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0083.hostedemail.com [216.40.44.83]) by kanga.kvack.org (Postfix) with ESMTP id DFDD08D0001 for ; Wed, 2 Dec 2020 03:42:56 -0500 (EST) Received: from smtpin25.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id AA8BD8249980 for ; Wed, 2 Dec 2020 08:42:56 +0000 (UTC) X-FDA: 77547701952.25.plant17_160da69273b1 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin25.hostedemail.com (Postfix) with ESMTP id 829351804E3B2 for ; Wed, 2 Dec 2020 08:42:56 +0000 (UTC) X-HE-Tag: plant17_160da69273b1 X-Filterd-Recvd-Size: 3085 Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by imf08.hostedemail.com (Postfix) with ESMTP for ; Wed, 2 Dec 2020 08:42:55 +0000 (UTC) IronPort-SDR: xPTmUDaxm7kTX161abhwUy9Lz7Nl0jlC+U9956nfEMSrjWNqwBpDfqfl3D8yW95YbEip4UbnSH WW5FP9S6SMdw== X-IronPort-AV: E=McAfee;i="6000,8403,9822"; a="257690441" X-IronPort-AV: E=Sophos;i="5.78,386,1599548400"; d="scan'208";a="257690441" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Dec 2020 00:42:53 -0800 IronPort-SDR: 59lfLOZMG1FRpT/zHmSkEXl1OymOw7dey734xunXqss8j0lU8MlQNWGrVeKXXmuHopTIfawP2M AtqxpwR531jA== X-IronPort-AV: E=Sophos;i="5.78,386,1599548400"; d="scan'208";a="539590119" Received: from yhuang6-mobl1.sh.intel.com (HELO yhuang6-MOBL1.intel.com) ([10.238.5.184]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Dec 2020 00:42:49 -0800 From: Huang Ying To: Peter Zijlstra , Mel Gorman Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Huang Ying , "Matthew Wilcox (Oracle)" , Rafael Aquini , Andrew Morton , Ingo Molnar , Rik van Riel , Johannes Weiner , Dave Hansen , Andi Kleen , Michal Hocko , David Rientjes , linux-api@vger.kernel.org Subject: [PATCH -V6 RESEND 2/3] NOT kernel/man-pages: man2/set_mempolicy.2: Add mode flag MPOL_F_NUMA_BALANCING Date: Wed, 2 Dec 2020 16:42:33 +0800 Message-Id: <20201202084234.15797-3-ying.huang@intel.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201202084234.15797-1-ying.huang@intel.com> References: <20201202084234.15797-1-ying.huang@intel.com> MIME-Version: 1.0 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: Signed-off-by: "Huang, Ying" --- man2/set_mempolicy.2 | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/man2/set_mempolicy.2 b/man2/set_mempolicy.2 index 68011eecb..3754b3e12 100644 --- a/man2/set_mempolicy.2 +++ b/man2/set_mempolicy.2 @@ -113,6 +113,12 @@ A nonempty .I nodemask specifies node IDs that are relative to the set of node IDs allowed by the process's current cpuset. +.TP +.BR MPOL_F_NUMA_BALANCING " (since Linux 5.11)" +Enable the Linux kernel NUMA balancing for the task if it is supported +by kernel. +If the flag isn't supported by Linux kernel, return -1 and errno is +set to EINVAL. .PP .I nodemask points to a bit mask of node IDs that contains up to @@ -293,6 +299,9 @@ argument specified both .B MPOL_F_STATIC_NODES and .BR MPOL_F_RELATIVE_NODES . +Or, the +.B MPOL_F_NUMA_BALANCING +isn't supported by the Linux kernel. .TP .B ENOMEM Insufficient kernel memory was available.