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[147.75.199.223]) by mx.google.com with ESMTPS id g10-20020ae9e10a000000b007810ade4aa2si2135159qkm.485.2023.12.21.06.52.02 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Dec 2023 06:52:02 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-8590-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-8590-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-8590-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id E6EB61C21521 for ; Thu, 21 Dec 2023 14:52:01 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id A41373608F; Thu, 21 Dec 2023 14:51:55 +0000 (UTC) X-Original-To: linux-kernel@vger.kernel.org Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) (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 AF5051DFF1 for ; Thu, 21 Dec 2023 14:51:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ACULAB.COM Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=aculab.com Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-202-qEY6d-hKMgeVYQ6t5d40fg-1; Thu, 21 Dec 2023 14:51:44 +0000 X-MC-Unique: qEY6d-hKMgeVYQ6t5d40fg-1 Received: from AcuMS.Aculab.com (10.202.163.4) by AcuMS.aculab.com (10.202.163.4) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Thu, 21 Dec 2023 14:51:29 +0000 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Thu, 21 Dec 2023 14:51:29 +0000 From: David Laight To: 'Steven Rostedt' CC: "linux-kernel@vger.kernel.org" , "linux-trace-kernel@vger.kernel.org" , Masami Hiramatsu , Mark Rutland , Mathieu Desnoyers , Andrew Morton , Tzvetomir Stoyanov , Vincent Donnefort , Kent Overstreet Subject: RE: [PATCH v5 02/15] ring-buffer: Page size per ring buffer Thread-Topic: [PATCH v5 02/15] ring-buffer: Page size per ring buffer Thread-Index: AQHaMqz+dUnedT4aZk+oEbt0Pk2DGrCx3FFAgABHoICAAVLeAIAAVVeAgAAIyTA= Date: Thu, 21 Dec 2023 14:51:29 +0000 Message-ID: <8b75519445ad458394439feed0ce6288@AcuMS.aculab.com> References: <20231219185414.474197117@goodmis.org> <20231219185628.009147038@goodmis.org> <84d3b41a72bd43dbb9d44921ef535c92@AcuMS.aculab.com> <20231220080129.3453bca8@gandalf.local.home> <30f49370d7ae494ab1afca5cf602ab55@AcuMS.aculab.com> <20231221091947.3b35d5d8@gandalf.local.home> In-Reply-To: <20231221091947.3b35d5d8@gandalf.local.home> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable > I think 1kb units is perfectly fine (patch 15 changes to kb units). The > interface says its to define the minimal size of the sub-buffer, not the > actual size. I didn't read that far through :-( =09David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1= PT, UK Registration No: 1397386 (Wales)