Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932391Ab0D1XMv (ORCPT ); Wed, 28 Apr 2010 19:12:51 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:49784 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752806Ab0D1XMu (ORCPT ); Wed, 28 Apr 2010 19:12:50 -0400 Date: Wed, 28 Apr 2010 16:12:44 -0700 From: Andrew Morton To: Matt Mackall Cc: Jack Steiner , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Stephen Hemminger Subject: Re: [PATCH v2] - Randomize node rotor used in cpuset_mem_spread_node() Message-Id: <20100428161244.5d351395.akpm@linux-foundation.org> In-Reply-To: <1272495846.21962.1090.camel@calx> References: <20100428131158.GA2648@sgi.com> <20100428150432.GA3137@sgi.com> <20100428154034.fb823484.akpm@linux-foundation.org> <1272495846.21962.1090.camel@calx> X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.9; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 729 Lines: 17 On Wed, 28 Apr 2010 18:04:06 -0500 Matt Mackall wrote: > > I suspect random32() would suffice here. It avoids depleting the > > entropy pool altogether. > > I wouldn't worry about that. get_random_int() touches the urandom pool, > which will always leave entropy around. Also, Ted and I decided over a > year ago that we should drop the whole entropy accounting framework, > which I'll get around to some rainy weekend. hm, so why does random32() exist? Speed? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/