From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp106.biz.mail.re2.yahoo.com (smtp106.biz.mail.re2.yahoo.com [206.190.52.175]) by ozlabs.org (Postfix) with SMTP id 11C49DDF1D for ; Sat, 10 Feb 2007 04:14:56 +1100 (EST) In-Reply-To: <45CB28A6.3050607@freescale.com> References: <989B956029373F45A0B8AF02970818900D444B@zch01exm26.fsl.freescale.net> <45CB28A6.3050607@freescale.com> Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <712E63F6-23D6-45EB-92F0-95656FF38BC4@embeddedalley.com> From: Dan Malek Subject: Re: Discussion about iopa() Date: Fri, 9 Feb 2007 12:08:15 -0500 To: Timur Tabi Cc: linuxppc-dev list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Feb 8, 2007, at 8:41 AM, Timur Tabi wrote: > Walking the page table is slower than using pointer math, so you > want to > avoid iopa() if you can. Big deal. With all of the other kernel bloat going on you want to argue about a couple of memory accesses? :-) -- Dan