From: Kees Cook <kees@kernel.org>
To: "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
Cc: "Linus Torvalds" <torvalds@linux-foundation.org>,
"Nathan Chancellor" <nathan@kernel.org>,
"Nicolas Schier" <nsc@kernel.org>,
"Nick Desaulniers" <ndesaulniers@google.com>,
"Bill Wendling" <morbo@google.com>,
"Justin Stitt" <justinstitt@google.com>,
"Masahiro Yamada" <masahiroy@kernel.org>,
"Alexey Gladkov" <legion@kernel.org>,
"Thomas Gleixner" <tglx@kernel.org>,
"Ingo Molnar" <mingo@redhat.com>,
"Borislav Petkov" <bp@alien8.de>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
"Paul Walmsley" <pjw@kernel.org>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Albert Ou" <aou@eecs.berkeley.edu>,
"Alexandre Ghiti" <alex@ghiti.fr>,
"Arnd Bergmann" <arnd@arndb.de>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
"Ard Biesheuvel" <ardb@kernel.org>,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
"Josh Poimboeuf" <jpoimboe@kernel.org>,
"Peter Zijlstra" <peterz@infradead.org>,
"Miguel Ojeda" <ojeda@kernel.org>,
"Boqun Feng" <boqun@kernel.org>, "Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"Danilo Krummrich" <dakr@kernel.org>,
"Daniel Almeida" <daniel.almeida@collabora.com>,
"Tamir Duberstein" <tamird@kernel.org>,
"Alexandre Courbot" <acourbot@nvidia.com>,
"Onur Özkan" <work@onurozkan.dev>,
"Jonathan Corbet" <corbet@lwn.net>,
"Randy Dunlap" <rdunlap@infradead.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
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" <axboe@kernel.dk>,
linux-hardening@vger.kernel.org
Subject: Re: [PATCH v3 20/20] kbuild: compress the kernel with pigz if available
Date: Thu, 17 Sep 2026 09:58:04 -0700 [thread overview]
Message-ID: <202609170955.C6EABD8C@keescook> (raw)
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) <ljs@kernel.org>
> ---
> 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@kernel.org>
--
Kees Cook
WARNING: multiple messages have this Message-ID (diff)
From: Kees Cook <kees@kernel.org>
To: "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
Cc: "Linus Torvalds" <torvalds@linux-foundation.org>,
"Nathan Chancellor" <nathan@kernel.org>,
"Nicolas Schier" <nsc@kernel.org>,
"Nick Desaulniers" <ndesaulniers@google.com>,
"Bill Wendling" <morbo@google.com>,
"Justin Stitt" <justinstitt@google.com>,
"Masahiro Yamada" <masahiroy@kernel.org>,
"Alexey Gladkov" <legion@kernel.org>,
"Thomas Gleixner" <tglx@kernel.org>,
"Ingo Molnar" <mingo@redhat.com>,
"Borislav Petkov" <bp@alien8.de>,
"Dave Hansen" <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
"Paul Walmsley" <pjw@kernel.org>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Albert Ou" <aou@eecs.berkeley.edu>,
"Alexandre Ghiti" <alex@ghiti.fr>,
"Arnd Bergmann" <arnd@arndb.de>,
"Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will@kernel.org>,
"Mark Rutland" <mark.rutland@arm.com>,
"Ard Biesheuvel" <ardb@kernel.org>,
"Ilias Apalodimas" <ilias.apalodimas@linaro.org>,
"Josh Poimboeuf" <jpoimboe@kernel.org>,
"Peter Zijlstra" <peterz@infradead.org>,
"Miguel Ojeda" <ojeda@kernel.org>,
"Boqun Feng" <boqun@kernel.org>, "Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"Trevor Gross" <tmgross@umich.edu>,
"Danilo Krummrich" <dakr@kernel.org>,
"Daniel Almeida" <daniel.almeida@collabora.com>,
"Tamir Duberstein" <tamird@kernel.org>,
"Alexandre Courbot" <acourbot@nvidia.com>,
"Onur Özkan" <work@onurozkan.dev>,
"Jonathan Corbet" <corbet@lwn.net>,
"Randy Dunlap" <rdunlap@infradead.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
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" <axboe@kernel.dk>,
linux-hardening@vger.kernel.org
Subject: Re: [PATCH v3 20/20] kbuild: compress the kernel with pigz if available
Date: Thu, 17 Sep 2026 09:58:04 -0700 [thread overview]
Message-ID: <202609170955.C6EABD8C@keescook> (raw)
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) <ljs@kernel.org>
> ---
> 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@kernel.org>
--
Kees Cook
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2026-09-17 16:58 UTC|newest]
Thread overview: 152+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 16:06 [PATCH v3 00/20] kbuild: significantly speed up kernel builds Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 01/20] kbuild: do not allocate .modinfo in vmlinux Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 16:52 ` Kees Cook
2026-09-17 16:52 ` Kees Cook
2026-09-17 17:41 ` Lorenzo Stoakes (ARM)
2026-09-17 17:41 ` Lorenzo Stoakes (ARM)
2026-09-18 0:51 ` Nathan Chancellor
2026-09-18 0:51 ` Nathan Chancellor
2026-09-18 17:09 ` Nicolas Schier
2026-09-18 17:09 ` Nicolas Schier
2026-09-18 21:44 ` Nathan Chancellor
2026-09-18 21:44 ` Nathan Chancellor
2026-09-19 14:39 ` Lorenzo Stoakes (ARM)
2026-09-19 14:39 ` Lorenzo Stoakes (ARM)
2026-09-17 17:05 ` Kees Cook
2026-09-17 17:05 ` Kees Cook
2026-09-17 17:39 ` Lorenzo Stoakes (ARM)
2026-09-17 17:39 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 02/20] kallsyms: index symbols by token to speed up table compression Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 17:27 ` Kees Cook
2026-09-17 17:27 ` Kees Cook
2026-09-17 17:45 ` Lorenzo Stoakes (ARM)
2026-09-17 17:45 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 03/20] kallsyms: output binary data to speed output and kallsyms assembly Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 17:36 ` Kees Cook
2026-09-17 17:36 ` Kees Cook
2026-09-17 16:06 ` [PATCH v3 04/20] kbuild: do not sort nm output where the order is irrelevant Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 17:38 ` Kees Cook
2026-09-17 17:38 ` Kees Cook
2026-09-18 19:14 ` Nicolas Schier
2026-09-18 19:14 ` Nicolas Schier
2026-09-17 16:06 ` [PATCH v3 05/20] kbuild: only emit vmlinux relocations when required Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 17:41 ` Kees Cook
2026-09-17 17:41 ` Kees Cook
2026-09-17 17:48 ` Lorenzo Stoakes (ARM)
2026-09-17 17:48 ` Lorenzo Stoakes (ARM)
2026-09-18 19:27 ` Nicolas Schier
2026-09-18 19:27 ` Nicolas Schier
2026-09-17 16:06 ` [PATCH v3 06/20] elf-parse: add section flags, symbol binding and a read-only mapping Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 17:44 ` Kees Cook
2026-09-17 17:44 ` Kees Cook
2026-09-17 16:06 ` [PATCH v3 07/20] kallsyms: reimplement mksysmap in C Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 18:07 ` Kees Cook
2026-09-17 18:07 ` Kees Cook
2026-09-19 16:24 ` Lorenzo Stoakes (ARM)
2026-09-19 16:24 ` Lorenzo Stoakes (ARM)
2026-09-19 16:25 ` Lorenzo Stoakes (ARM)
2026-09-19 16:25 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 08/20] kbuild: cache list, composite object state per object Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 18:11 ` Kees Cook
2026-09-17 18:11 ` Kees Cook
2026-09-18 19:51 ` Nicolas Schier
2026-09-18 19:51 ` Nicolas Schier
2026-09-19 14:48 ` Lorenzo Stoakes (ARM)
2026-09-19 14:48 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 09/20] kbuild: implement and use depcheck to check dependency timestamps Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 18:42 ` Kees Cook
2026-09-17 18:42 ` Kees Cook
2026-09-17 20:59 ` Kees Cook
2026-09-17 20:59 ` Kees Cook
2026-09-19 17:02 ` Lorenzo Stoakes (ARM)
2026-09-19 17:02 ` Lorenzo Stoakes (ARM)
2026-09-20 3:46 ` Kees Cook
2026-09-20 3:46 ` Kees Cook
2026-09-19 16:57 ` Lorenzo Stoakes (ARM)
2026-09-19 16:57 ` Lorenzo Stoakes (ARM)
2026-09-19 17:06 ` Lorenzo Stoakes (ARM)
2026-09-19 17:06 ` Lorenzo Stoakes (ARM)
2026-09-20 3:48 ` Kees Cook
2026-09-20 3:48 ` Kees Cook
2026-09-17 16:06 ` [PATCH v3 10/20] kbuild: move the toolchain checks into init/Kconfig.toolchain Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 18:53 ` Kees Cook
2026-09-17 18:53 ` Kees Cook
2026-09-18 1:07 ` Nathan Chancellor
2026-09-18 1:07 ` Nathan Chancellor
2026-09-18 14:35 ` Lorenzo Stoakes (ARM)
2026-09-18 14:35 ` Lorenzo Stoakes (ARM)
2026-09-18 19:54 ` Nicolas Schier
2026-09-18 19:54 ` Nicolas Schier
2026-09-18 21:12 ` Nathan Chancellor
2026-09-18 21:12 ` Nathan Chancellor
2026-09-19 14:45 ` Lorenzo Stoakes (ARM)
2026-09-19 14:45 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 11/20] kbuild: avoid re-running compiler and linker probes Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 19:26 ` Kees Cook
2026-09-17 19:26 ` Kees Cook
2026-09-18 1:21 ` Nathan Chancellor
2026-09-18 1:21 ` Nathan Chancellor
2026-09-18 4:44 ` Kees Cook
2026-09-18 4:44 ` Kees Cook
2026-09-18 5:40 ` Nathan Chancellor
2026-09-18 5:40 ` Nathan Chancellor
2026-09-19 17:31 ` Lorenzo Stoakes (ARM)
2026-09-19 17:31 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 12/20] modpost: cache section relocation mismatch state Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 13/20] modpost: emit module descriptors as assembly Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 14/20] kbuild: batch module finalisation Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 17:01 ` Kees Cook
2026-09-17 17:01 ` Kees Cook
2026-09-21 12:22 ` Lorenzo Stoakes (ARM)
2026-09-21 12:22 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 15/20] objtool: cache relocations, do less work, eliminate relocation hash Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-22 4:16 ` Josh Poimboeuf
2026-09-22 4:16 ` Josh Poimboeuf
2026-09-22 9:05 ` Lorenzo Stoakes (ARM)
2026-09-22 9:05 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 16/20] objtool: size the instruction hash to the text Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 17/20] objtool: decode instructions and resolve branch targets in parallel Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-22 4:27 ` Josh Poimboeuf
2026-09-22 4:27 ` Josh Poimboeuf
2026-09-22 9:43 ` Lorenzo Stoakes (ARM)
2026-09-22 9:43 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 18/20] rust: make exports.o depend on the headers generated for it Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 19/20] kbuild: build rust crates in parallel with the rest of the build Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` [PATCH v3 20/20] kbuild: compress the kernel with pigz if available Lorenzo Stoakes (ARM)
2026-09-17 16:06 ` Lorenzo Stoakes (ARM)
2026-09-17 16:58 ` Kees Cook [this message]
2026-09-17 16:58 ` Kees Cook
2026-09-19 17:43 ` Lorenzo Stoakes (ARM)
2026-09-19 17:43 ` Lorenzo Stoakes (ARM)
2026-09-18 14:27 ` Manuel Ebner
2026-09-18 14:27 ` Manuel Ebner
2026-09-19 17:42 ` Lorenzo Stoakes (ARM)
2026-09-19 17:42 ` Lorenzo Stoakes (ARM)
2026-09-17 17:15 ` [PATCH v3 00/20] kbuild: significantly speed up kernel builds Linus Torvalds
2026-09-17 17:15 ` Linus Torvalds
2026-09-17 17:36 ` Lorenzo Stoakes (ARM)
2026-09-17 17:36 ` Lorenzo Stoakes (ARM)
2026-09-17 19:42 ` Lorenzo Stoakes (ARM)
2026-09-17 19:42 ` Lorenzo Stoakes (ARM)
2026-09-17 20:02 ` Nick Desaulniers
2026-09-17 20:02 ` Nick Desaulniers
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