From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [Bcache v13 05/16] Export get_random_int() Date: Tue, 15 May 2012 09:44:40 -0700 Message-ID: <20120515164440.GB20827@google.com> References: <5278ad493eb3ad441b2091b4c119d741e47f5c97.1336619038.git.koverstreet@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <5278ad493eb3ad441b2091b4c119d741e47f5c97.1336619038.git.koverstreet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org> Sender: linux-bcache-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Kent Overstreet Cc: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, agk-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org List-Id: dm-devel.ids On Wed, May 09, 2012 at 11:09:13PM -0400, Kent Overstreet wrote: > This is needed for bcache - it needs a fast source of random numbers for > the throttling code in order to fuzz IO sizes, but the random numbers > don't need to be any good (and it immediately converts it to a > binomially distributed random number with popcount anyways). > > Signed-off-by: Kent Overstreet Please cc the maintainer (for other patches too). Thanks. -- tejun From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933235Ab2EOQos (ORCPT ); Tue, 15 May 2012 12:44:48 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:33372 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932906Ab2EOQop (ORCPT ); Tue, 15 May 2012 12:44:45 -0400 Date: Tue, 15 May 2012 09:44:40 -0700 From: Tejun Heo To: Kent Overstreet Cc: linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, dm-devel@redhat.com, agk@redhat.com Subject: Re: [Bcache v13 05/16] Export get_random_int() Message-ID: <20120515164440.GB20827@google.com> References: <5278ad493eb3ad441b2091b4c119d741e47f5c97.1336619038.git.koverstreet@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5278ad493eb3ad441b2091b4c119d741e47f5c97.1336619038.git.koverstreet@google.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 09, 2012 at 11:09:13PM -0400, Kent Overstreet wrote: > This is needed for bcache - it needs a fast source of random numbers for > the throttling code in order to fuzz IO sizes, but the random numbers > don't need to be any good (and it immediately converts it to a > binomially distributed random number with popcount anyways). > > Signed-off-by: Kent Overstreet Please cc the maintainer (for other patches too). Thanks. -- tejun