From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759268AbXJXNez (ORCPT ); Wed, 24 Oct 2007 09:34:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757919AbXJXNec (ORCPT ); Wed, 24 Oct 2007 09:34:32 -0400 Received: from ts.adaptec.com ([162.62.93.58]:54527 "EHLO mail-gw3.adaptec.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757953AbXJXNea convert rfc822-to-8bit (ORCPT ); Wed, 24 Oct 2007 09:34:30 -0400 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT Subject: RE: [PATCH -mm 11/11] aacraid: use pci_set_dma_max_seg_size Date: Wed, 24 Oct 2007 09:34:25 -0400 Message-ID: In-Reply-To: <471F2D12.50006@garzik.org> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [PATCH -mm 11/11] aacraid: use pci_set_dma_max_seg_size Thread-Index: AcgWMXP1zstOa2BsQ56UiZI3u7MvLgADlIGw References: <67bb10d9f4e9473ddc84d9839114602c1966f19f.tomof@acm.org> <20071024173019I.tomof@acm.org> <471F2D12.50006@garzik.org> From: "Salyzyn, Mark" To: "Jeff Garzik" , "FUJITA Tomonori" Cc: , , , , "AACRAID" , Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jeff Garzik [mailto:jeff@garzik.org] writes: > is this needed, given that the default is already 65536? Apparently so, as we had to add it in the past, mainly because the feature to limit was not part of the SCSI layer when the original limit code was added. At that time it replaced a complicated sg breakup algorithm. Does your statement guarantee that the default will not change to a large value? If not, then we need to enforce it in perpetuity... Sincerely -- Mark Salyzyn