From 6435add6c4a50a0a22f695c6cfa4a10884fdea6a Mon Sep 17 00:00:00 2001
From: Gabriel Ebner <gebner@gebner.org>
Date: Thu, 3 Sep 2015 10:41:18 +0200
Subject: [PATCH] archachatina: enable trim

---
 archachatina.nix | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/archachatina.nix b/archachatina.nix
index 5016bc7..7282431 100644
--- a/archachatina.nix
+++ b/archachatina.nix
@@ -7,7 +7,19 @@
       ./uefi.nix
     ];
 
-  boot.initrd.luks.devices = [ { name = "sda2_crypt"; device = "/dev/disk/by-uuid/663dcfda-081e-40d5-9ba4-62ad73dc5098"; preLVM = true; } ];
+  environment.etc."lvm/lvm.conf".text = ''
+    devices {
+      issue_discards = 1
+    }
+  '';
+  boot.initrd.luks.devices = [
+    {
+      name = "sda2_crypt";
+      device = "/dev/disk/by-uuid/663dcfda-081e-40d5-9ba4-62ad73dc5098";
+      preLVM = true;
+      allowDiscards = true;
+    }
+  ];
 
   networking.hostName = "archachatina"; # Define your hostname.
   networking.hostId = "cc7ea3ba";