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{ stdenv, fetchurl }:
let
bfqVersion = "v7r6";
kernelVersion = "3.17";
version = "${kernelVersion}.0-${bfqVersion}";
baseURL = "http://algo.ing.unimo.it/people/paolo/disk_sched/patches";
fetchPatch = { name, sha256 }: fetchurl {
url = "${baseURL}/${version}/${name}.patch";
inherit sha256;
};
allPatches = [
(fetchPatch {
name = "0001-block-cgroups-kconfig-build-bits-for-BFQ-"
+ "${bfqVersion}-${kernelVersion}";
sha256 = "1qx2i6ivnd8k6pgz39yx5dhrrmvl9ilnrbn9p72dkpa7dhw6yzqm";
})
(fetchPatch {
name = "0002-block-introduce-the-BFQ-"
+ "${bfqVersion}-I-O-sched-for-${kernelVersion}";
sha256 = "0j0cjw0lrwyfib5mfrk1i8cdx1j62fjiy113x050zsmrrbq93rak";
})
(fetchPatch {
name = "0003-block-bfq-add-Early-Queue-Merge-EQM-to-BFQ-"
+ "${bfqVersion}-for-${kernelVersion}.0";
sha256 = "0i5fflxzaid7hp0zw0cq7i3q1ddgjrdivlm0kgfnh8a33h2vhw4y";
})
];
patch = stdenv.mkDerivation {
name = "bfqsched-${version}.patch";
inherit allPatches;
buildCommand = ''
sed -e 's/IS_SUBSYS_ENABLED/IS_ENABLED/' \
-e '/SUBSYS/s/perf/&_event/' $allPatches > "$out"
'';
};
in {
name = "bfqsched-${version}";
inherit version patch;
}
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