From be07c1bad9f639b1e739eaa94605d939efe759b5 Mon Sep 17 00:00:00 2001
From: Linus Heckemann <git@sphalerite.org>
Date: Sun, 23 Jan 2022 11:49:09 +0100
Subject: [PATCH] nixos/zram: support built-in zram

---
 nixos/modules/config/zram.nix | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/nixos/modules/config/zram.nix b/nixos/modules/config/zram.nix
index b162fbc311e3..cd7c735e244e 100644
--- a/nixos/modules/config/zram.nix
+++ b/nixos/modules/config/zram.nix
@@ -131,6 +131,8 @@ in
       options zram num_devices=${toString cfg.numDevices}
     '';
 
+    boot.kernelParams = ["zram.num_devices=${toString cfg.numDevices}"];
+
     services.udev.extraRules = ''
       KERNEL=="zram[0-9]*", ENV{SYSTEMD_WANTS}="zram-init-%k.service", TAG+="systemd"
     '';
@@ -177,9 +179,9 @@ in
           serviceConfig = {
             Type = "oneshot";
             RemainAfterExit = true;
-            ExecStartPre = "${modprobe} -r zram";
-            ExecStart = "${modprobe} zram";
-            ExecStop = "${modprobe} -r zram";
+            ExecStartPre = "-${modprobe} -r zram";
+            ExecStart = "-${modprobe} zram";
+            ExecStop = "-${modprobe} -r zram";
           };
           restartTriggers = [
             cfg.numDevices