1 files changed, 25 insertions, 0 deletions
diff --git a/nixos/modules/tasks/filesystems/f2fs.nix b/nixos/modules/tasks/filesystems/f2fs.nix
new file mode 100644
index 00000000000..a305235979a
--- /dev/null
+++ b/nixos/modules/tasks/filesystems/f2fs.nix
@@ -0,0 +1,25 @@
+{ config, pkgs, lib, ... }:
+
+with lib;
+
+let
+  inInitrd = any (fs: fs == "f2fs") config.boot.initrd.supportedFilesystems;
+  fileSystems = filter (x: x.fsType == "f2fs") config.system.build.fileSystems;
+in
+{
+  config = mkIf (any (fs: fs == "f2fs") config.boot.supportedFilesystems) {
+
+    system.fsPackages = [ pkgs.f2fs-tools ];
+
+    boot.initrd.availableKernelModules = mkIf inInitrd [ "f2fs" "crc32" ];
+
+    boot.initrd.extraUtilsCommands = mkIf inInitrd ''
+      copy_bin_and_libs ${pkgs.f2fs-tools}/sbin/fsck.f2fs
+      ${optionalString (any (fs: fs.autoResize) fileSystems) ''
+        # We need f2fs-tools' tools to resize filesystems
+        copy_bin_and_libs ${pkgs.f2fs-tools}/sbin/resize.f2fs
+      ''}
+
+    '';
+  };
+}