Adding blktrace

Tool to get traces of operations in block devices on linux.

pkgs/os-specific/linux/blktrace/default.nix

@@ -0,0 +1,23 @@
+{ stdenv, fetchurl, libaio }:
+
+stdenv.mkDerivation {
+  name = "blktrace-1.1.0";
+
+  # Official source
+  # "git://git.kernel.org/pub/scm/linux/kernel/git/axboe/blktrace.git"
+  src = fetchurl {
+    url = "http://brick.kernel.dk/snaps/blktrace-1.1.0.tar.bz2";
+    sha256 = "15cj9aki7z5i5y6bnchqry6yp40r4lmgmam6ar5gslnx0smgm8jl";
+  };
+
+  buildInputs = [ libaio ];
+
+  preConfigure = ''
+    sed s,/usr/local,$out, -i Makefile
+  '';
+
+  meta = {
+    description = "Block layer IO tracing mechanism";
+    license = stdenv.lib.licenses.gpl2;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -10212,6 +10212,8 @@ in
 
   batctl = callPackage ../os-specific/linux/batman-adv/batctl.nix { };
 
+  blktrace = callPackage ../os-specific/linux/blktrace { };
+
   bluez4 = lowPrio (callPackage ../os-specific/linux/bluez {
     pygobject = pygobject3;
   });