From patchwork Wed Mar 6 01:34:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Williams X-Patchwork-Id: 10840311 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 B29D0180E for ; Wed, 6 Mar 2019 01:47:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9918A2D07F for ; Wed, 6 Mar 2019 01:47:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8ABE12D09F; Wed, 6 Mar 2019 01:47:07 +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 9CC2E2D07F for ; Wed, 6 Mar 2019 01:47:06 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 93738211D56B9; Tue, 5 Mar 2019 17:47:06 -0800 (PST) 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=192.55.52.151; helo=mga17.intel.com; envelope-from=dan.j.williams@intel.com; receiver=linux-nvdimm@lists.01.org Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) (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 9898B21A134A1 for ; Tue, 5 Mar 2019 17:47:04 -0800 (PST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Mar 2019 17:47:04 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,446,1544515200"; d="scan'208";a="280090149" Received: from dwillia2-desk3.jf.intel.com (HELO dwillia2-desk3.amr.corp.intel.com) ([10.54.39.16]) by orsmga004.jf.intel.com with ESMTP; 05 Mar 2019 17:47:03 -0800 Subject: [ndctl PATCH 5/5] ndctl/namespace: Minimize label data transfer for autolabel From: Dan Williams To: linux-nvdimm@lists.01.org Date: Tue, 05 Mar 2019 17:34:25 -0800 Message-ID: <155183606560.191625.374613203843183629.stgit@dwillia2-desk3.amr.corp.intel.com> In-Reply-To: <155183603979.191625.11689546261255336448.stgit@dwillia2-desk3.amr.corp.intel.com> References: <155183603979.191625.11689546261255336448.stgit@dwillia2-desk3.amr.corp.intel.com> User-Agent: StGit/0.18-2-gc94f 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: , Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP Use the new ndctl_dimm_read_label_index() helper to minimize the amount of label I/O needed to execute an autolabel event. Signed-off-by: Dan Williams --- ndctl/namespace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/ndctl/namespace.c b/ndctl/namespace.c index 63b870ff7a6d..05e5ab792941 100644 --- a/ndctl/namespace.c +++ b/ndctl/namespace.c @@ -1016,7 +1016,7 @@ retry: int num_labels, avail; ndctl_cmd_unref(cmd_read); - cmd_read = ndctl_dimm_read_labels(dimm); + cmd_read = ndctl_dimm_read_label_index(dimm); if (!cmd_read) continue;