I have added a special kernel 2.6.21 with the Con Kolivas patches that are designed to improve system responsiveness with specific emphasis on the desktop, but suitable to any workload. (and also the other patches like ext3cow and paravirt-nvidia)

svn path=/nixpkgs/trunk/; revision=9748
This commit is contained in:
Wouter den Breejen 2007-11-17 16:29:15 +00:00
parent 8e25a7d6c9
commit e20c559e5f
3 changed files with 10291 additions and 0 deletions

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{ stdenv, fetchurl, perl, mktemp, module_init_tools
# A list of patches to apply to the kernel. Each element of this list
# should be an attribute set {name, patch} where `name' is a
# symbolic name and `patch' is the actual patch. The patch may
# optionally be compressed with gzip or bzip2.
, kernelPatches ? []
, # Whether to build a User-Mode Linux kernel.
userModeLinux ? false
, # Allows you to set your own kernel version suffix (e.g.,
# "-my-kernel").
localVersion ? ""
, # Your own kernel configuration file, if you don't want to use the
# default.
kernelConfig ? null
, # A list of additional statements to be appended to the
# configuration file.
extraConfig ? []
}:
assert stdenv.system == "i686-linux" || stdenv.system == "x86_64-linux";
let
lib = import ../../../lib;
version = "2.6.21";
in
stdenv.mkDerivation {
name = if userModeLinux then "user-mode-linux-${version}" else "linux-${version}";
builder = ./builder.sh;
src = fetchurl {
url = "http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.21.tar.bz2";
sha256 = "f187b12d70e0a48ce81f0472dfe9504fb5f0f966be339ac9d57dd2b991a74942";
};
patches = map (p: p.patch) kernelPatches;
extraConfig =
let addNewlines = map (s: "\n" + s + "\n");
configFromPatches =
map (p: if p ? extraConfig then p.extraConfig else "") kernelPatches;
in lib.concatStrings (addNewlines (configFromPatches ++ extraConfig));
config =
if kernelConfig != null then kernelConfig else
if userModeLinux then ./config-2.6.21-uml else
if stdenv.system == "i686-linux" then ./config-2.6.21-i686-smp else
if stdenv.system == "x86_64-linux" then ./config-2.6.21-x86_64-smp else
abort "No kernel configuration for your platform!";
buildInputs = [perl mktemp];
arch =
if userModeLinux then "um" else
if stdenv.system == "i686-linux" then "i386" else
if stdenv.system == "x86_64-linux" then "x86_64" else
abort "Platform ${stdenv.system} is not supported.";
makeFlags = if userModeLinux then "ARCH=um SHELL=bash" else "";
inherit module_init_tools;
allowLocalVersion = false; # don't allow patches to set a suffix
inherit localVersion; # but do allow the user to set one.
meta = {
description =
(if userModeLinux then
"User-Mode Linux"
else
"The Linux kernel") +
(if kernelPatches == [] then "" else
" (with patches: "
+ lib.concatStrings (lib.intersperse ", " (map (x: x.name) kernelPatches))
+ ")");
};
}

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