From patchwork Tue May 28 22:24:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Verma, Vishal L" X-Patchwork-Id: 10965873 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 09C94912 for ; Tue, 28 May 2019 22:24:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EEF90288A6 for ; Tue, 28 May 2019 22:24:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E38A4288B3; Tue, 28 May 2019 22:24:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A5254288A6 for ; Tue, 28 May 2019 22:24:51 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id AE68A2128D88B; Tue, 28 May 2019 15:24:50 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=134.134.136.24; helo=mga09.intel.com; envelope-from=vishal.l.verma@intel.com; receiver=linux-nvdimm@lists.01.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id D478B21C8EFB5 for ; Tue, 28 May 2019 15:24:46 -0700 (PDT) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 May 2019 15:24:46 -0700 X-ExtLoop1: 1 Received: from vverma7-desk1.lm.intel.com ([10.232.112.185]) by fmsmga001.fm.intel.com with ESMTP; 28 May 2019 15:24:46 -0700 From: Vishal Verma To: Subject: [ndctl PATCH v4 05/10] daxctl/list: add numa_node for device listings Date: Tue, 28 May 2019 16:24:35 -0600 Message-Id: <20190528222440.30392-6-vishal.l.verma@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190528222440.30392-1-vishal.l.verma@intel.com> References: <20190528222440.30392-1-vishal.l.verma@intel.com> MIME-Version: 1.0 X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dave Hansen , Pavel Tatashin Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP The kernel provides a 'target_node' attribute for dax devices. When converting a dax device to the system-ram mode, the memory is hotplugged into this numa node. It would be helpful to print this in device listings so that it is easy for applications to detect the numa node to which the new memory belongs. Cc: Dan Williams Cc: Dave Hansen Signed-off-by: Vishal Verma --- util/json.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/util/json.c b/util/json.c index babdc8c..b7ce719 100644 --- a/util/json.c +++ b/util/json.c @@ -271,6 +271,7 @@ struct json_object *util_daxctl_dev_to_json(struct daxctl_dev *dev, { const char *devname = daxctl_dev_get_devname(dev); struct json_object *jdev, *jobj; + int node; jdev = json_object_new_object(); if (!devname || !jdev) @@ -284,6 +285,13 @@ struct json_object *util_daxctl_dev_to_json(struct daxctl_dev *dev, if (jobj) json_object_object_add(jdev, "size", jobj); + node = daxctl_dev_get_target_node(dev); + if (node >= 0) { + jobj = json_object_new_int(node); + if (jobj) + json_object_object_add(jdev, "numa_node", jobj); + } + return jdev; }