From f3183a93826b1dabe4a446c2d834eae7de06b3e0 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Sat, 22 Aug 2026 12:59:11 +0200
Subject: kernel/fs: remove backing inode from base

---
 kernel/kernel/filesystem/ext2/filesystem.cpp | 5 +++++
 kernel/kernel/filesystem/ext2/filesystem.hpp | 6 ++++++
 kernel/kernel/filesystem/filesystem.cpp      | 4 ----
 kernel/kernel/filesystem/filesystem.hpp      | 8 --------
 4 files changed, 11 insertions(+), 12 deletions(-)

(limited to 'kernel')

diff --git a/kernel/kernel/filesystem/ext2/filesystem.cpp b/kernel/kernel/filesystem/ext2/filesystem.cpp
index c5808a60..c6180fe1 100644
--- a/kernel/kernel/filesystem/ext2/filesystem.cpp
+++ b/kernel/kernel/filesystem/ext2/filesystem.cpp
@@ -725,6 +725,11 @@ namespace kernel::filesystem::ext2
     return kstd::success();
   }
 
+  auto filesystem::backing_inode() const -> kstd::shared_ptr<kernel::filesystem::inode> const &
+  {
+    return m_backing_inode;
+  }
+
   auto filesystem::read_block(uint32_t block_number, void * buffer) const -> kstd::result<kstd::bytes>
   {
     auto const block_offset = static_cast<size_t>(block_number) * block_size();
diff --git a/kernel/kernel/filesystem/ext2/filesystem.hpp b/kernel/kernel/filesystem/ext2/filesystem.hpp
index f53e74da..23629928 100644
--- a/kernel/kernel/filesystem/ext2/filesystem.hpp
+++ b/kernel/kernel/filesystem/ext2/filesystem.hpp
@@ -155,6 +155,11 @@ namespace kernel::filesystem::ext2
     auto write_global_block_number_to_inode_block_index(size_t block_index, inode_data & data,
                                                         uint32_t global_block_number) -> kstd::result<void>;
 
+    //! Get the backing inode of the file system.
+    //!
+    //! @return A reference to the backing inode.
+    [[nodiscard]] auto backing_inode() const -> kstd::shared_ptr<kernel::filesystem::inode> const &;
+
   private:
     struct indirect_level
     {
@@ -192,6 +197,7 @@ namespace kernel::filesystem::ext2
 
     superblock m_superblock{};
     kstd::vector<block_group_descriptor> m_block_group_descriptors;
+    kstd::shared_ptr<kernel::filesystem::inode> m_backing_inode;
   };
 }  // namespace kernel::filesystem::ext2
 
diff --git a/kernel/kernel/filesystem/filesystem.cpp b/kernel/kernel/filesystem/filesystem.cpp
index 362c4d1e..d2e3adde 100644
--- a/kernel/kernel/filesystem/filesystem.cpp
+++ b/kernel/kernel/filesystem/filesystem.cpp
@@ -29,8 +29,4 @@ namespace kernel::filesystem
     return kstd::failure(vfs_errc::unsupported_filesystem);
   }
 
-  auto filesystem::backing_inode() const -> kstd::shared_ptr<inode> const &
-  {
-    return m_backing_inode;
-  }
 }  // namespace kernel::filesystem
\ No newline at end of file
diff --git a/kernel/kernel/filesystem/filesystem.hpp b/kernel/kernel/filesystem/filesystem.hpp
index dccc9434..cae36967 100644
--- a/kernel/kernel/filesystem/filesystem.hpp
+++ b/kernel/kernel/filesystem/filesystem.hpp
@@ -61,14 +61,6 @@ namespace kernel::filesystem
                                             kapi::filesystem::file_type type,
                                             std::optional<kapi::filesystem::device_number> raw_device = std::nullopt)
         -> kstd::result<kstd::shared_ptr<inode>> = 0;
-
-    //! Get the backing inode of the file system.
-    //!
-    //! @return A reference to the backing inode.
-    [[nodiscard]] auto backing_inode() const -> kstd::shared_ptr<inode> const &;
-
-  protected:
-    kstd::shared_ptr<inode> m_backing_inode{};
   };
 
 }  // namespace kernel::filesystem
-- 
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