From patchwork Tue Jan 22 02:48:09 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Yang X-Patchwork-Id: 10774787 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 2D4C191E for ; Tue, 22 Jan 2019 02:49:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1BB5D2A3BF for ; Tue, 22 Jan 2019 02:49:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0CDE02A3CF; Tue, 22 Jan 2019 02:49:18 +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 A09FA2A3BF for ; Tue, 22 Jan 2019 02:49:17 +0000 (UTC) Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 26793211B7F70; Mon, 21 Jan 2019 18:49:17 -0800 (PST) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: None (no SPF record) identity=mailfrom; client-ip=134.134.136.126; helo=mga18.intel.com; envelope-from=richardw.yang@linux.intel.com; receiver=linux-nvdimm@lists.01.org Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) (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 5CFDE21962301 for ; Mon, 21 Jan 2019 18:49:15 -0800 (PST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Jan 2019 18:49:14 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,504,1539673200"; d="scan'208";a="137607899" Received: from richard.sh.intel.com (HELO localhost) ([10.239.159.37]) by fmsmga004.fm.intel.com with ESMTP; 21 Jan 2019 18:49:13 -0800 From: Wei Yang To: linux-nvdimm@lists.01.org Subject: [PATCH 1/2] libnvdimm, pfn: use size is enough Date: Tue, 22 Jan 2019 10:48:09 +0800 Message-Id: <20190122024810.4448-1-richardw.yang@linux.intel.com> X-Mailer: git-send-email 2.19.1 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: zwisler@kernel.org Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP When trying to see whether current nd_region intersects with others, we have already calculated the *size* to be expanded to SECTION size. So just pass size is enough. Signed-off-by: Wei Yang --- drivers/nvdimm/pfn_devs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c index becf0bb481b3..5eca050b3660 100644 --- a/drivers/nvdimm/pfn_devs.c +++ b/drivers/nvdimm/pfn_devs.c @@ -686,7 +686,7 @@ static void trim_pfn_device(struct nd_pfn *nd_pfn, u32 *start_pad, u32 *end_trun if (region_intersects(start, size, IORESOURCE_SYSTEM_RAM, IORES_DESC_NONE) == REGION_MIXED || !IS_ALIGNED(end, nd_pfn->align) - || nd_region_conflict(nd_region, start, size + adjust)) + || nd_region_conflict(nd_region, start, size)) *end_trunc = end - phys_pmem_align_down(nd_pfn, end); }