From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Fink Subject: Re: [PATCH] drivers/net: remove network drivers' last few uses of IRQF_SAMPLE_RANDOM Date: Mon, 26 May 2008 17:52:27 -0400 Message-ID: <20080526175227.4b7ae764.billfink@mindspring.com> References: <482C7E53.3050300@hp.com> <482C8184.2030906@garzik.org> <482C8550.5000909@intel.com> <482C8D4D.3040702@garzik.org> <20080516132107.GA11304@csclub.uwaterloo.ca> <20080516161029.44ded734@core> <20080516173610.GA27126@csclub.uwaterloo.ca> <20080516191125.46f59ad6@core> <1211728189.5913.71.camel@andromache> <20080525232712.GF5970@mit.edu> <20080526154326.1fe44214@Varda> <20080526111458.fff6c311.billfink@mindspring.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Alejandro Riveira =?ISO-8859-1?Q?Fern=E1ndez?= , Theodore Tso , Glen Turner , Chris Peterson , Alan Cox , Lennart Sorensen , Jeff Garzik , "Kok\, Auke" , Rick Jones , "Brandeburg\, Jesse" , netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: Krzysztof Halasa Return-path: Received: from elasmtp-mealy.atl.sa.earthlink.net ([209.86.89.69]:37760 "EHLO elasmtp-mealy.atl.sa.earthlink.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754591AbYEZVxI (ORCPT ); Mon, 26 May 2008 17:53:08 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Mon, 26 May 2008, Krzysztof Halasa wrote: > Bill Fink writes: > > > Another idea that occured to me: How about using the low order bits > > of the instruction memory address being executed that was interrupted > > by the HZ timer interrupt. > > Think of constant-instructions-length processors :-) I'm not sure what you're driving at, but if it's that you shouldn't use the very last 2 or 3 bits, then sure those should be excluded. But that still leaves 9 or 10 bits at least in the page offset, and that's being conservative in the number of address bits to sample. -Bill