From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752797AbZALOH2 (ORCPT ); Mon, 12 Jan 2009 09:07:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750955AbZALOHO (ORCPT ); Mon, 12 Jan 2009 09:07:14 -0500 Received: from postfix2-g20.free.fr ([212.27.60.43]:38650 "EHLO postfix2-g20.free.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750770AbZALOHM (ORCPT ); Mon, 12 Jan 2009 09:07:12 -0500 Message-ID: <1231769162.496b4e4aafc24@imp.free.fr> Date: Mon, 12 Jan 2009 15:06:02 +0100 From: Gilles Espinasse To: Sam Ravnborg Cc: Jan Beulich , Theodore Tso , linux-kernel@vger.kernel.org, Jan Engelhardt Subject: Re: [REGRESSION] Recent change to kernel spikes out ccache/distcc References: <496386EF.76E4.0078.0@novell.com> <20090106173300.GA10903@mit.edu> <49647B00.76E4.0078.0@novell.com> <20090107113138.GA29730@uranus.ravnborg.org> <4964AF8D.76E4.0078.0@novell.com> <20090107132337.GA2289@uranus.ravnbo <20090107200646.GF4647@uranus.ravnborg.org> In-Reply-To: <20090107200646.GF4647@uranus.ravnborg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT User-Agent: Internet Messaging Program (IMP) 3.2.8 X-Originating-IP: 192.54.193.57 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Selon Sam Ravnborg : ... > But if only on-disk size is your primary concern then another patch > of Jan Engelhardt would be a bigger win: > Would be better to add -n to gzip flags for 2 reasons - compressed module is smaller without file name and date include - it make paranoid people happier. At each compilation of the same source within same environnement, using gzip without timestamp produce exactly the same binary. With timestamp include, you are no more able to track a change to the compressed module file with md5|sha1... Even gzip-1.2.4 from 1993 support -n flag build: install modules compressed --- scripts/Makefile.modinst | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst index efa5d94..c3421a1 100644 --- a/scripts/Makefile.modinst +++ b/scripts/Makefile.modinst @@ -17,7 +17,7 @@ __modinst: $(modules) @: quiet_cmd_modules_install = INSTALL $@ - cmd_modules_install = mkdir -p $(2); cp $@ $(2) ; $(mod_strip_cmd) \ $(2)/$(notdir $@) + cmd_modules_install = mkdir -p $(2); cp $@ $(2) ; \ $(mod_strip_cmd) $(2)/$(notdir $@); gzip -9nf $(2)/$(notdir $@) # Modules built outside the kernel source tree go into extra by default INSTALL_MOD_DIR ?= extra (cut'n'paste so will not apply direct) Gilles