From patchwork Wed Mar 6 10:28:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhijian Li (Fujitsu)" X-Patchwork-Id: 13583826 X-Patchwork-Delegate: iweiny@gmail.com Received: from esa12.hc1455-7.c3s2.iphmx.com (esa12.hc1455-7.c3s2.iphmx.com [139.138.37.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9884960868 for ; Wed, 6 Mar 2024 10:30:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=139.138.37.100 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709721028; cv=none; b=tV/RrvQAbc9JjRt0L3QJVcEwNQ80+Dk5xpJRXvOXi9D0+ibooRaxztxfhmwMl6/9VpRq1FmarUWuA0eQ2F4699Mn/c3bWBTEfbeR2j++hFsa9SHXKyFBUqdhGaJfA05eOwbsr8QL7zL4PZ5PBW4aw/CrOXl0ibJl2B4U17Q5tuQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709721028; c=relaxed/simple; bh=8m938ej88oP8CU4LRmFGqeZ2eI8zznrXHFjHuzUAi80=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ix3fwvX+NDY+Z20Nr15lMp/pGNkEAGaK8X58DAgskLykvNTHVCuu0/9sRLG1ghCbnjNnFkCMS/gRWW+DzVbtbCUkACBVCX/YN2wBCRd6kpsmlw7cgMVgeGYBTkBtq0Mgfuk+N9teVJCjKgw/zt2KW4Q1jux1n4JmlkbNhxh9uAc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=fujitsu.com; spf=pass smtp.mailfrom=fujitsu.com; dkim=pass (2048-bit key) header.d=fujitsu.com header.i=@fujitsu.com header.b=PwKdS9ab; arc=none smtp.client-ip=139.138.37.100 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=fujitsu.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fujitsu.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=fujitsu.com header.i=@fujitsu.com header.b="PwKdS9ab" DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=fujitsu.com; i=@fujitsu.com; q=dns/txt; s=fj2; t=1709721026; x=1741257026; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8m938ej88oP8CU4LRmFGqeZ2eI8zznrXHFjHuzUAi80=; b=PwKdS9abdjQvI8XscYmBP1eN+2/f0JlKJHSL5t4mWHi4gfr3st5r8op7 5/LYpMMRN0O6SBrJZqtfSfuj6TjSl1V4MNKGcBQj2VbTipKr6ENnAWk+Q 2gEMHeLK9OGMRcJFWg9HJGpgjEzNUJaxqFfvy2la5CHmEueRtEGXCa0W7 SPIDYO43ERXElIEuWIuPgbqhaX06d+Mo6C/L35ADv8+Ydl2VRN00LXE9D 1vwfjorxo74vnMQCf8214LU5iZVixY4TKOT7GDjH5kh4+zxh09MNYLLyu qqEl99OQHiFJIZnXVfiETdKRJ545NTl3woFiWqFRMXqaqZ53GRoeqvHGQ A==; X-IronPort-AV: E=McAfee;i="6600,9927,11004"; a="130699032" X-IronPort-AV: E=Sophos;i="6.06,208,1705330800"; d="scan'208";a="130699032" Received: from unknown (HELO oym-r2.gw.nic.fujitsu.com) ([210.162.30.90]) by esa12.hc1455-7.c3s2.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2024 19:29:13 +0900 Received: from oym-m4.gw.nic.fujitsu.com (oym-nat-oym-m4.gw.nic.fujitsu.com [192.168.87.61]) by oym-r2.gw.nic.fujitsu.com (Postfix) with ESMTP id 2F63BEB462 for ; Wed, 6 Mar 2024 19:29:10 +0900 (JST) Received: from kws-ab4.gw.nic.fujitsu.com (kws-ab4.gw.nic.fujitsu.com [192.51.206.22]) by oym-m4.gw.nic.fujitsu.com (Postfix) with ESMTP id 56D53D5D17 for ; Wed, 6 Mar 2024 19:29:09 +0900 (JST) Received: from edo.cn.fujitsu.com (edo.cn.fujitsu.com [10.167.33.5]) by kws-ab4.gw.nic.fujitsu.com (Postfix) with ESMTP id C654121BD41 for ; Wed, 6 Mar 2024 19:29:08 +0900 (JST) Received: from localhost.localdomain (unknown [10.167.226.45]) by edo.cn.fujitsu.com (Postfix) with ESMTP id D32BA1A006D; Wed, 6 Mar 2024 18:29:07 +0800 (CST) From: Li Zhijian To: linux-kernel@vger.kernel.org Cc: y-goto@fujitsu.com, Alison Schofield , Andrew Morton , Baoquan He , Borislav Petkov , Dan Williams , Dave Hansen , Dave Jiang , Greg Kroah-Hartman , hpa@zytor.com, Ingo Molnar , Ira Weiny , Thomas Gleixner , Vishal Verma , linux-cxl@vger.kernel.org, linux-mm@kvack.org, nvdimm@lists.linux.dev, x86@kernel.org, kexec@lists.infradead.org, Li Zhijian Subject: [PATCH v3 3/7] nvdimm: pmem: assign a parent resource for vmemmap region for the fsdax Date: Wed, 6 Mar 2024 18:28:42 +0800 Message-Id: <20240306102846.1020868-4-lizhijian@fujitsu.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20240306102846.1020868-1-lizhijian@fujitsu.com> References: <20240306102846.1020868-1-lizhijian@fujitsu.com> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-TM-AS-Product-Ver: IMSS-9.1.0.1417-9.0.0.1002-28234.006 X-TM-AS-User-Approved-Sender: Yes X-TMASE-Version: IMSS-9.1.0.1417-9.0.1002-28234.006 X-TMASE-Result: 10--1.564400-10.000000 X-TMASE-MatchedRID: BlFNdihulaZXk4HjwySOxykMR2LAnMRpFInyGi5rPwK4GyTmeN+AbL8F Hrw7frluf146W0iUu2tDc4lSgrowpWptPhjDCRug9k5nZzZVBSBULRRq00o2mZsoi2XrUn/Jn6K dMrRsL14qtq5d3cxkNU8XOMKR+RhSziRYTTEaxycNH0kK2Y6lBnFLca4Td9YkovbRRC+8RtSqnf dPSmIOZvdj0cn+WGO3HBgXAGNBpen5KWrl6H4maf8jyjqYHnMRFcUQf3Yp/ridO0/GUi4gFb0fO PzpgdcEKeJ/HkAZ8Is= X-TMASE-SNAP-Result: 1.821001.0001-0-1-22:0,33:0,34:0-0 When the pmem is configured as fsdax, set the vmemmap region as a child of the namespace region so that it can be registered as a separate resource later. CC: Dan Williams CC: Vishal Verma CC: Dave Jiang CC: Ira Weiny CC: Baoquan He CC: nvdimm@lists.linux.dev Signed-off-by: Li Zhijian --- drivers/nvdimm/pmem.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c index 4e8fdcb3f1c8..b2640a3fb693 100644 --- a/drivers/nvdimm/pmem.c +++ b/drivers/nvdimm/pmem.c @@ -452,7 +452,7 @@ static int pmem_attach_disk(struct device *dev, struct nd_namespace_io *nsio = to_nd_namespace_io(&ndns->dev); struct nd_region *nd_region = to_nd_region(dev->parent); int nid = dev_to_node(dev), fua; - struct resource *res = &nsio->res; + struct resource *res = &nsio->res, *parent; struct range bb_range; struct nd_pfn *nd_pfn = NULL; struct dax_device *dax_dev; @@ -491,12 +491,15 @@ static int pmem_attach_disk(struct device *dev, fua = 0; } - if (!devm_request_mem_region(dev, res->start, resource_size(res), - dev_name(&ndns->dev))) { + parent = devm_request_mem_region(dev, res->start, resource_size(res), + dev_name(&ndns->dev)); + if (!res) { dev_warn(dev, "could not reserve region %pR\n", res); return -EBUSY; } + pgmap_parent_resource(&pmem->pgmap, parent); + disk = blk_alloc_disk(nid); if (!disk) return -ENOMEM;