From c5081bd6032feeacc82cdcab32f93cd0685d7e20 Mon Sep 17 00:00:00 2001
From: "William A. Kennington III" <william@wkennington.com>
Date: Fri, 1 May 2015 11:16:58 -0700
Subject: [PATCH] btrfsprogs: 3.19.1 -> 4.0

---
 pkgs/tools/filesystems/btrfsprogs/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/tools/filesystems/btrfsprogs/default.nix b/pkgs/tools/filesystems/btrfsprogs/default.nix
index d1e0e8e430b5..9286d58482fd 100644
--- a/pkgs/tools/filesystems/btrfsprogs/default.nix
+++ b/pkgs/tools/filesystems/btrfsprogs/default.nix
@@ -1,14 +1,14 @@
 { stdenv, fetchurl, pkgconfig, attr, acl, zlib, libuuid, e2fsprogs, lzo
 , asciidoc, xmlto, docbook_xml_dtd_45, docbook_xsl, libxslt }:
 
-let version = "3.19.1"; in
+let version = "4.0"; in
 
 stdenv.mkDerivation rec {
   name = "btrfs-progs-${version}";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/people/kdave/btrfs-progs/btrfs-progs-v${version}.tar.xz";
-    sha256 = "1nw8rsc0dc5k6hrg03m1c65n4d0f7rfs1fjv96xqhqg0wykn5214";
+    sha256 = "07ss0spfkb6dkvcwmkljy6bbyf437abwzngip141a1mhq6ng370p";
   };
 
   buildInputs = [