From dc9bd3b44cbbd0235a176f05c27eb15ff31f5e09 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Fri, 22 May 2026 20:18:05 +0200
Subject: kernel/vfs: prepare fs type registration support

---
 kernel/src/filesystem/ext2/filesystem.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'kernel/src/filesystem/ext2/filesystem.cpp')

diff --git a/kernel/src/filesystem/ext2/filesystem.cpp b/kernel/src/filesystem/ext2/filesystem.cpp
index 12aeaaa..6959653 100644
--- a/kernel/src/filesystem/ext2/filesystem.cpp
+++ b/kernel/src/filesystem/ext2/filesystem.cpp
@@ -6,6 +6,7 @@
 #include <kernel/filesystem/ext2/superblock.hpp>
 #include <kernel/filesystem/filesystem.hpp>
 #include <kernel/filesystem/inode.hpp>
+#include <kernel/filesystem/type.hpp>
 
 #include <kstd/memory>
 #include <kstd/unikstd.h>
@@ -18,6 +19,28 @@
 
 namespace kernel::filesystem::ext2
 {
+
+  struct type final : kernel::filesystem::type
+  {
+    [[nodiscard]] auto name() const noexcept -> std::string_view override
+    {
+      return "ext2";
+    }
+
+    [[nodiscard]] auto requires_device() const noexcept -> bool override
+    {
+      return true;
+    }
+
+    [[nodiscard]] auto make_instance() const -> kstd::shared_ptr<kernel::filesystem::filesystem> override
+    {
+      return kstd::make_shared<filesystem>();
+    }
+  } const constinit type_instance{};
+
+  [[gnu::section(".vfs_type_descriptors"), gnu::used]]
+  auto const * const type_descriptor_pointer = static_cast<kernel::filesystem::type const *>(&type_instance);
+
   auto filesystem::mount(kstd::shared_ptr<kernel::filesystem::inode> const & backing_inode) -> operation_result
   {
     kernel::filesystem::filesystem::mount(backing_inode);
-- 
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