1 files changed, 44 insertions, 0 deletions
diff --git a/pkgs/kpatches/bfqsched.nix b/pkgs/kpatches/bfqsched.nix
new file mode 100644
index 00000000..ff7d8752
--- /dev/null
+++ b/pkgs/kpatches/bfqsched.nix
@@ -0,0 +1,44 @@
+{ stdenv, fetchurl }:
+
+let
+  bfqVersion = "v7r7";
+  kernelVersion = "3.19";
+  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}-${kernelVersion}";
+      sha256 = "1qlk1hcirf3x9h80f9crnyqgxvw79xi89rwv0sh4hsd1lw3sbi7s";
+    })
+    (fetchPatch {
+      name = "0002-block-introduce-the-BFQ-"
+           + "${bfqVersion}-I-O-sched-for-${kernelVersion}";
+      sha256 = "04fbynd6k7g92rbyciswx3mswxr0amvp75wzdpn57wwjv5vlh7b2";
+    })
+    (fetchPatch {
+      name = "0003-block-bfq-add-Early-Queue-Merge-EQM-to-BFQ-"
+           + "${bfqVersion}-for-${kernelVersion}.0";
+      sha256 = "17ypb5y7wkr719vy00wm09szmqnlpzpvkcq5phivdxd27417828m";
+    })
+  ];
+
+  patch = stdenv.mkDerivation {
+    name = "bfqsched-${version}.patch";
+    inherit allPatches;
+    buildCommand = ''
+      cat $allPatches > "$out"
+    '';
+  };
+
+in {
+  name = "bfqsched-${version}";
+  inherit version patch;
+}