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| author | Maxim Cournoyer <maxim.cournoyer@gmail.com> | 2024-05-12 20:51:50 -0400 |
|---|---|---|
| committer | Maxim Cournoyer <maxim.cournoyer@gmail.com> | 2024-05-29 22:01:23 -0400 |
| commit | afacfa33ec4b52cb9ffb9b0a7a0c1e68cf264673 (patch) | |
| tree | 9d811f1d85d4ae892604ca421d653ea53fb654a0 /gnu/system | |
| parent | b72b6063cebbcfd64d43f5b05ba8470eb11c3f65 (diff) | |
gnu: linux-libre: Enable Zstd compression of kernel modules.
This brings the on disk size of the kernel from 164 MiB to 144 MiB, or about
12%.
* gnu/packages/linux.scm (default-extra-linux-options)
[version>=5.13]: Enable CONFIG_MODULE_COMPRESS_ZSTD, else
CONFIG_MODULE_COMPRESS_GZIP.
(make-linux-libre*) [phases] {set-environment}: Set ZSTD_CLEVEL environment
variable to 19.
[native-inputs]: Add zstd.
* gnu/build/linux-modules.scm (module-regex): Add .zst to regexp. Update doc.
(modinfo-section-contents): Extend support to Zstd compressed module.
(dot-ko): Register the 'zstd compression type.
(ensure-dot-ko, file-name->module-name, load-linux-module*)
(module-name->file-name/guess, write-module-name-database)
(write-module-alias-database, write-module-device-database): Update doc.
(module-name-lookup): Also consider zstd-compressed modules.
* gnu/installer.scm (installer-program): Add guile-zstd extension to gexp.
* gnu/system/linux-initrd.scm (flat-linux-module-directory): Likewise.
Decompress zstd-compressed modules for use in initrd.
* guix/profiles.scm (linux-module-database): Add guile-zstd extension to gexp.
Change-Id: Ide899dc5c58ea5033583b1a91a92c025fc8d901a
Diffstat (limited to 'gnu/system')
| -rw-r--r-- | gnu/system/linux-initrd.scm | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gnu/system/linux-initrd.scm b/gnu/system/linux-initrd.scm index d448c78918..f902637e48 100644 --- a/gnu/system/linux-initrd.scm +++ b/gnu/system/linux-initrd.scm @@ -128,7 +128,7 @@ MODULES and taken from LINUX." (define build-exp (with-imported-modules imported-modules - (with-extensions (list guile-zlib) + (with-extensions (list guile-zlib guile-zstd) #~(begin (use-modules (gnu build linux-modules) (guix build utils) @@ -168,7 +168,9 @@ MODULES and taken from LINUX." ;; is already gzipped as a whole. (cond ((string-contains file ".ko.gz") - (invoke #+(file-append gzip "/bin/gunzip") file)))) + (invoke #+(file-append gzip "/bin/gunzip") file)) + ((string-contains file ".ko.zst") + (invoke #+(file-append zstd "/bin/zstd") "-d" file)))) (mkdir #$output) (for-each (lambda (module) |