From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3BE6E5172E9; Thu, 17 Sep 2026 16:58:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789664286; cv=none; b=UYqculujt1dKgXloQsdwxRqS25kOsWylMOIgSgpfOHvxPVeMmgunIFhpChqxbr5P0/u9B9OA2i3R3DYOo3yr2duSrY8VFO45tVSNoLIq7snvVfDKZETrQxDtTUxjQU1LhzUs8MszGya85F60/EZrS0p5Dh6YG1K00CxCqpXxfxY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789664286; c=relaxed/simple; bh=KU+UbWVWGVDzP2/5478+tNX+uvyBl8kvMYviNDdFHKg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=p7t1QfL1P72HTyI6pQcuMgKaOZQvNpkFMm3wHLWB9vGmDZCKCU0SBAekhrhGVhDE2deq9WAulX7Vj5VvHeWUrbcVSr5l/fkEr0X41kbDEMDigna2sUf1FTcoKC0+9cGp97Xh0bN+PYB4zZkcetyZ+54xrqySFxVhlNZQ+KVh80g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FijdV8dz; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FijdV8dz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 06D021F00898; Thu, 17 Sep 2026 16:58:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789664285; bh=G6M1hxOvYoy7f6OFIyTNAjYyoJ8doAT9R3t/RnO+5wE=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=FijdV8dzZR2foaEFvspQUWKw1vTW1Az7WPXaE1AnyErCZpDibf9TS+0SVBRczfVXq 51yGbrxoI2hkrwpUKheNe44X5at4kUaTkptcr34f9l29GQUmKr49sxZmE7zWmdFj70 ToWvPKEy6RdQZV38xRki41NcNNA311huD54DX91tIdQzds9LtsNYVkVPU7JAIpchh1 Xrmfo/xCNNmjhgEgtJM6k6/Aswi959TzbgjltpBsIQweHbEBmQpWA8M3jMptitEsEc XNV5BKRrbk6whmGYeGr5yQ9CznqcLlvEj6OFEM+Ge0XByu2XWAR4v26+LVunA5ljIs CrIqaoayngHTQ== Date: Thu, 17 Sep 2026 09:58:04 -0700 From: Kees Cook To: "Lorenzo Stoakes (ARM)" Cc: Linus Torvalds , Nathan Chancellor , Nicolas Schier , Nick Desaulniers , Bill Wendling , Justin Stitt , Masahiro Yamada , Alexey Gladkov , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Arnd Bergmann , Catalin Marinas , Will Deacon , Mark Rutland , Ard Biesheuvel , Ilias Apalodimas , Josh Poimboeuf , Peter Zijlstra , Miguel Ojeda , Boqun Feng , Gary Guo , =?iso-8859-1?Q?Bj=F6rn?= Roy Baron , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , Daniel Almeida , Tamir Duberstein , Alexandre Courbot , Onur =?iso-8859-1?Q?=D6zkan?= , Jonathan Corbet , Randy Dunlap , "Gustavo A. R. Silva" , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, linux-riscv@lists.infradead.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-efi@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-doc@vger.kernel.org, Jens Axboe , linux-hardening@vger.kernel.org Subject: Re: [PATCH v3 20/20] kbuild: compress the kernel with pigz if available Message-ID: <202609170955.C6EABD8C@keescook> References: <20260917-build-speedup-v3-0-9ecf4163ff36@kernel.org> <20260917-build-speedup-v3-20-9ecf4163ff36@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260917-build-speedup-v3-20-9ecf4163ff36@kernel.org> On Thu, Sep 17, 2026 at 05:06:30PM +0100, Lorenzo Stoakes (ARM) wrote: > Signed-off-by: Lorenzo Stoakes (ARM) > --- > Documentation/kbuild/kbuild.rst | 17 +++++++++++++++++ > Documentation/process/changes.rst | 8 ++++++++ > Makefile | 5 ++++- > kernel/Makefile | 6 +++++- > scripts/Makefile.lib | 4 ++-- > scripts/jobserver-exec | 3 ++- > tools/lib/python/jobserver.py | 13 +++++++++++++ > 7 files changed, 51 insertions(+), 5 deletions(-) Awesome; I love it. (I may send a follow-up to improve the PARALLELISM token so things can define the fallback instead of the hard-coded "1", but there is only one place I found where that might be useful, and it will be totally separate from this.) Reviewed-by: Kees Cook -- Kees Cook