From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailout2.samsung.com (mailout2.samsung.com [203.254.224.25]) (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 EAE9633C52A for ; Fri, 9 Jan 2026 11:53:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.254.224.25 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767959606; cv=none; b=K8lITJDaRgVPqqOH9S6krdgqyVlOQ3mIUuEOPlXMeIx4EHwDzxXVbBKT+BzRUUF5NqQh78oZkYYDJDk4O1mFybgHGEPgY8CIES0yrZNYQvURh9myZytMnmTr3ed+FjiEmBBSRESiMr4MpJF8OBq+TFY6682ywWBlgd0bJdpdSu4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767959606; c=relaxed/simple; bh=icu3AxhyZbhaMGE5j+pkHkS98biryn6ZpnGHiV3BKD4=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:In-Reply-To: Content-Type:References; b=IAf689bErJxDohFD6aA1ITNFmJTvW05vG9lCL9SEUUzfhbm0nIeFo9GHdDCRaRdCbYz9OSXga5LdFfdlQckKRIE+ffJc+6H3/GDFEpffX79BVnWNQtiDY2nxDbygf2O46FUTsGZXAnlsD1izdHAfbkn/xEEv7LOgazh2hFvNZHE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com; spf=pass smtp.mailfrom=samsung.com; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b=Xy+3v3QU; arc=none smtp.client-ip=203.254.224.25 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=samsung.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="Xy+3v3QU" Received: from epcas5p1.samsung.com (unknown [182.195.41.39]) by mailout2.samsung.com (KnoxPortal) with ESMTP id 20260109115322epoutp02978aeede9a257032a283e8d9d48dfb6f~JDeRD9Iz11049310493epoutp02j for ; Fri, 9 Jan 2026 11:53:22 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.samsung.com 20260109115322epoutp02978aeede9a257032a283e8d9d48dfb6f~JDeRD9Iz11049310493epoutp02j DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1767959602; bh=icu3AxhyZbhaMGE5j+pkHkS98biryn6ZpnGHiV3BKD4=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Xy+3v3QUyxy95BSlfu9FOMtqsIfQK48u3fhW0sHUialkLhB9In8WVwbQ/x2SVUF12 E9EwJK5a6adRmGejM9Xioi0Hr4uqqoZlxpHX2Iycpc4B3zTpKqjmNYZPjbyFmMYfYG KpqkF+cE+hhtVxztvQi3ryZOk7DFcPZLfc7ZbzYE= Received: from epsnrtp02.localdomain (unknown [182.195.42.154]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPS id 20260109115322epcas5p334bfdc533804e41bc23a3e9e7e19662a~JDeQzPV4W0080600806epcas5p3Z; Fri, 9 Jan 2026 11:53:22 +0000 (GMT) Received: from epcas5p4.samsung.com (unknown [182.195.38.86]) by epsnrtp02.localdomain (Postfix) with ESMTP id 4dngC545Mwz2SSKb; Fri, 9 Jan 2026 11:53:21 +0000 (GMT) Received: from epsmtip2.samsung.com (unknown [182.195.34.31]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPA id 20260109115321epcas5p38098f78587cafd7f93e05e9a316e2eac~JDePdqFPk0080600806epcas5p3X; Fri, 9 Jan 2026 11:53:21 +0000 (GMT) Received: from test-PowerEdge-R740xd (unknown [107.99.41.79]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20260109115319epsmtip2a4146bae16c094af52ba20ce18169315~JDeOSPmbK1843718437epsmtip2a; Fri, 9 Jan 2026 11:53:19 +0000 (GMT) Date: Fri, 9 Jan 2026 17:23:13 +0530 From: Neeraj Kumar To: Jonathan Cameron Cc: linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev, linux-kernel@vger.kernel.org, gost.dev@samsung.com, a.manzanares@samsung.com, vishak.g@samsung.com, neeraj.kernel@gmail.com, cpgs@samsung.com Subject: Re: [PATCH V4 05/17] nvdimm/label: Skip region label during ns label DPA reservation Message-ID: <20260109115313.r2ei4ymjtbkbkpy6@test-PowerEdge-R740xd> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: <20251217143308.00006144@huawei.com> X-CMS-MailID: 20260109115321epcas5p38098f78587cafd7f93e05e9a316e2eac X-Msg-Generator: CA Content-Type: multipart/mixed; boundary="----IrfruICR4kMULzJWPGPqiSt5VhS9eUGYkVmPB-DHhmy0YhYM=_e5c06_" CMS-TYPE: 105P X-CPGSPASS: Y cpgsPolicy: CPGSC10-542,Y X-CFilter-Loop: Reflected X-CMS-RootMailID: 20251119075315epcas5p2be6f51993152492f0dd64366863d70e2 References: <20251119075255.2637388-1-s.neeraj@samsung.com> <20251119075255.2637388-6-s.neeraj@samsung.com> <20251217143308.00006144@huawei.com> ------IrfruICR4kMULzJWPGPqiSt5VhS9eUGYkVmPB-DHhmy0YhYM=_e5c06_ Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Disposition: inline On 17/12/25 02:33PM, Jonathan Cameron wrote: >On Wed, 19 Nov 2025 13:22:43 +0530 >Neeraj Kumar wrote: > >> If Namespace label is present in LSA during nvdimm_probe() then DPA >> reservation is required. But this reservation is not required by region >> label. Therefore if LSA scanning finds any region label, skip it. > >It would be good to have a little more explanation of why these two >types of label put different requirements here. > >I'd rather not go spec diving to find out! > >Otherwise LGTM. Thanks Jonathan for review, I have added further explanation in commit message Regards, Neeraj ------IrfruICR4kMULzJWPGPqiSt5VhS9eUGYkVmPB-DHhmy0YhYM=_e5c06_ Content-Type: text/plain; charset="utf-8" ------IrfruICR4kMULzJWPGPqiSt5VhS9eUGYkVmPB-DHhmy0YhYM=_e5c06_--