diff options
| author | Linus Heckemann <git@sphalerite.org> | 2024-05-08 15:17:45 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-05-08 15:17:45 +0200 |
| commit | a10842c7f0343bad733d039c72cf15a6ca0d1eb4 (patch) | |
| tree | 047be3e42d725cdb39c933c441237017f630341f /nixos | |
| parent | 9a604d82fbc5d8a85a830efc28564cf397a297ab (diff) | |
| parent | b6ef9ffdfd54e91cce180c306852489f5ebc3098 (diff) | |
Merge pull request #302300 from Ma27/kernel-zstd
linux kernel: prefer zstd where possible
Diffstat (limited to 'nixos')
| -rw-r--r-- | nixos/doc/manual/release-notes/rl-2405.section.md | 4 | ||||
| -rw-r--r-- | nixos/modules/services/hardware/udev.nix | 14 |
2 files changed, 14 insertions, 4 deletions
diff --git a/nixos/doc/manual/release-notes/rl-2405.section.md b/nixos/doc/manual/release-notes/rl-2405.section.md index f8289da2c9776..c18f3af9219f7 100644 --- a/nixos/doc/manual/release-notes/rl-2405.section.md +++ b/nixos/doc/manual/release-notes/rl-2405.section.md @@ -53,6 +53,10 @@ Use `services.pipewire.extraConfig` or `services.pipewire.configPackages` for Pi - `system.etc.overlay.enable` option was added. If enabled, `/etc` is mounted via an overlayfs instead of being created by a custom perl script. +- For each supporting version of the Linux kernel firmware blobs and kernel modules + are compressed with zstd. For firmware blobs this means an increase of 4.4% in size, however + a significantly higher decompression speed. + - NixOS AMIs are now uploaded regularly to a new AWS Account. Instructions on how to use them can be found on <https://nixos.github.io/amis>. We are working on integration the data into the NixOS homepage. diff --git a/nixos/modules/services/hardware/udev.nix b/nixos/modules/services/hardware/udev.nix index 3db6616442816..62603d20e2d30 100644 --- a/nixos/modules/services/hardware/udev.nix +++ b/nixos/modules/services/hardware/udev.nix @@ -167,10 +167,16 @@ let mv etc/udev/hwdb.bin $out ''; - compressFirmware = firmware: if (config.boot.kernelPackages.kernelAtLeast "5.3" && (firmware.compressFirmware or true)) then - pkgs.compressFirmwareXz firmware - else - id firmware; + compressFirmware = firmware: + let + inherit (config.boot.kernelPackages) kernelAtLeast; + in + if ! (firmware.compressFirmware or true) then + firmware + else + if kernelAtLeast "5.19" then pkgs.compressFirmwareZstd firmware + else if kernelAtLeast "5.3" then pkgs.compressFirmwareXz firmware + else firmware; # Udev has a 512-character limit for ENV{PATH}, so create a symlink # tree to work around this. |