From patchwork Mon Aug 5 23:29:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Williams X-Patchwork-Id: 11077945 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 BF8CD1398 for ; Mon, 5 Aug 2019 23:51:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AECA3201F3 for ; Mon, 5 Aug 2019 23:51:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A3159287D3; Mon, 5 Aug 2019 23:51:05 +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 7131B201F3 for ; Mon, 5 Aug 2019 23:51:05 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id E392E213281FF; Mon, 5 Aug 2019 16:53:30 -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=dan.j.williams@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 0D653213030A2 for ; Mon, 5 Aug 2019 16:45:58 -0700 (PDT) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Aug 2019 16:43:27 -0700 X-IronPort-AV: E=Sophos;i="5.64,350,1559545200"; d="scan'208";a="164804896" Received: from dwillia2-desk3.jf.intel.com (HELO dwillia2-desk3.amr.corp.intel.com) ([10.54.39.16]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Aug 2019 16:43:27 -0700 Subject: [ndctl PATCH v4 5/7] ndctl/namespace: Minimize label data transfer for autolabel From: Dan Williams To: linux-nvdimm@lists.01.org Date: Mon, 05 Aug 2019 16:29:09 -0700 Message-ID: <156504774979.847544.9812989036686411087.stgit@dwillia2-desk3.amr.corp.intel.com> In-Reply-To: <156504772175.847544.11368833704527657055.stgit@dwillia2-desk3.amr.corp.intel.com> References: <156504772175.847544.11368833704527657055.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 a654460ce4c5..26d03358c80d 100644 --- a/ndctl/namespace.c +++ b/ndctl/namespace.c @@ -997,7 +997,7 @@ 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;