From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailout1.samsung.com (mailout1.samsung.com [203.254.224.24]) (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 96AE82EACE7 for ; Tue, 17 Jun 2025 13:00:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.254.224.24 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750165211; cv=none; b=aper3ps1K7s59XMAGAp5kNAMz7sjoYOE1HlE3gmoqRQ+yKfVnSfYUqn7eplooif0rwum35ilYzuSBAzyx3+ramUOol5ub3JeQOkj9kVpqALExTg/sMXwGIwm0BmF53ABOy/CCXOm+s9stTm3Uoz9/Tv47lcXWjzpGK7alYqX2g0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750165211; c=relaxed/simple; bh=QPRyqi00g3KJ9J3/BOtH9ar5XWUEC5GSFTuURVygUrE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:MIME-Version: Content-Type:References; b=m3G86cgXRkqsrb3FxvP9QwsMI+Uzn+1yPKxOAL+u16ZESIH/9Eq0g/b6i/+OqWXFUv2DqyjLak6UdP+gjGS50QEB2Q6NaaeobNfbeKEIgqw8kOO3tCDe4GUqMLpzCpzRu9ZGyno/nuzklD58AEEB7pAPUm+gxJVuTuU2g9X1DlU= 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=REbDqV+P; arc=none smtp.client-ip=203.254.224.24 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="REbDqV+P" Received: from epcas5p1.samsung.com (unknown [182.195.41.39]) by mailout1.samsung.com (KnoxPortal) with ESMTP id 20250617130005epoutp01010bfe58f666eef12edf65b144f1670a~J1ftXG2oU0676006760epoutp01f for ; Tue, 17 Jun 2025 13:00:05 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.samsung.com 20250617130005epoutp01010bfe58f666eef12edf65b144f1670a~J1ftXG2oU0676006760epoutp01f DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1750165205; bh=mGOKRZhuRng8+G/QThk2A3VRJikf51QSXgSzCEdjU8o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=REbDqV+PmFzICJsQc5XQrgbdJ5p3WtEewJef+wrSjfc5YNp0B6Rreqt/I0b9GmL+x 31Yk4EoinjqNaNfFoCpPp+7gj+pfH1BjNlu/ZQ3rVvS51e0zwaoAKSVgsu0tK6xj+B K8LOeoIdeVNgsiBVe0OjmucDkLTwyCT15J0Z1kfE= Received: from epsnrtp03.localdomain (unknown [182.195.42.155]) by epcas5p2.samsung.com (KnoxPortal) with ESMTPS id 20250617130005epcas5p20cff7e0ab5ca5607ee6edae7abf2485d~J1fs3AobM1917719177epcas5p2N; Tue, 17 Jun 2025 13:00:05 +0000 (GMT) Received: from epcpadp1new (unknown [182.195.40.141]) by epsnrtp03.localdomain (Postfix) with ESMTP id 4bM6R90n2qz3hhT4; Tue, 17 Jun 2025 13:00:05 +0000 (GMT) Received: from epsmtip2.samsung.com (unknown [182.195.34.31]) by epcas5p3.samsung.com (KnoxPortal) with ESMTPA id 20250617124031epcas5p3542c2fc6d946f3cdcbc06dbfc65743e2~J1On-HuCs2102821028epcas5p33; Tue, 17 Jun 2025 12:40:31 +0000 (GMT) Received: from test-PowerEdge-R740xd.samsungds.net (unknown [107.99.41.79]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20250617124028epsmtip2fae8871e5bf5e82a4abc397ffd8e6dde~J1Ole78oP2555425554epsmtip2H; Tue, 17 Jun 2025 12:40:28 +0000 (GMT) From: Neeraj Kumar To: dan.j.williams@intel.com, dave@stgolabs.net, jonathan.cameron@huawei.com, dave.jiang@intel.com, alison.schofield@intel.com, vishal.l.verma@intel.com, ira.weiny@intel.com Cc: a.manzanares@samsung.com, nifan.cxl@gmail.com, anisa.su@samsung.com, vishak.g@samsung.com, krish.reddy@samsung.com, arun.george@samsung.com, alok.rathore@samsung.com, s.neeraj@samsung.com, neeraj.kernel@gmail.com, linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev, gost.dev@samsung.com, cpgs@samsung.com Subject: [RFC PATCH 09/20] nvdimm/namespace_label: Skip region label during ns label DPA reservation Date: Tue, 17 Jun 2025 18:09:33 +0530 Message-Id: <306123060.201750165205099.JavaMail.epsvc@epcpadp1new> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250617123944.78345-1-s.neeraj@samsung.com> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CMS-MailID: 20250617124031epcas5p3542c2fc6d946f3cdcbc06dbfc65743e2 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P X-CPGSPASS: Y X-Hop-Count: 3 X-CMS-RootMailID: 20250617124031epcas5p3542c2fc6d946f3cdcbc06dbfc65743e2 References: <20250617123944.78345-1-s.neeraj@samsung.com> 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. Signed-off-by: Neeraj Kumar --- drivers/nvdimm/label.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c index 22e13db1ca20..3a870798a90c 100644 --- a/drivers/nvdimm/label.c +++ b/drivers/nvdimm/label.c @@ -450,6 +450,10 @@ int nd_label_reserve_dpa(struct nvdimm_drvdata *ndd) nd_label = to_label(ndd, slot); ns_label = &nd_label->ns_label; + /* skip region label, dpa reservation for ns label only */ + if (is_region_label(ndd, nd_label)) + continue; + if (!slot_valid(ndd, nd_label, slot)) continue; -- 2.34.1