From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Howells Subject: Re: Arch maintainers Ahoy! Date: Thu, 24 May 2012 18:16:46 +0100 Message-ID: <14829.1337879806@redhat.com> References: <20120523.132109.1153947222019508621.davem@davemloft.net> <20120523.141647.2252460119413470634.davem@davemloft.net> <32064.1337852416@redhat.com> <14266.1337877929@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mx1.redhat.com ([209.132.183.28]:1108 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933683Ab2EXRQ4 convert rfc822-to-8bit (ORCPT ); Thu, 24 May 2012 13:16:56 -0400 In-Reply-To: Sender: linux-arch-owner@vger.kernel.org List-ID: To: Linus Torvalds Cc: dhowells@redhat.com, David Miller , James.Bottomley@hansenpartnership.com, geert@linux-m68k.org, linux-arch@vger.kernel.org Linus Torvalds wrote: > > I didn't suggest it was free, but it might be cheaper. =C2=A0Beside= s x86/x86_64 > > has BSF/BSR instructions - though having played with Dave's algorit= hm > > some, I don't think they're usable for this. >=20 > David, I don't think you've followed this saga very well. No, I didn't phrase the paragraph above very well, so let me rephrase: = I think Dave's patch is _good_[*] and that BSF/BSR would _not_ be usable for it= =2E I was thinking that reordering the bytes on LE might help, but no, it d= oesn't as Dave's algorithm works equally well, no matter on the order the byte= s are in. David [*] Barring an extraneous semicolon already pointed out