From a6f93bf8df0dbfa7d19aa1168bfc8b052e41c42f Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Sat, 28 Mar 2026 17:28:32 +0100
Subject: fix vfs mount with /dev & /a  and rootfs & devfs

---
 kernel/include/kernel/filesystem/mount.hpp                    | 7 ++++++-
 kernel/include/kernel/filesystem/mount_table.hpp              | 6 +++---
 kernel/include/kernel/filesystem/rootfs/rootfs_filesystem.hpp | 2 --
 kernel/include/kernel/filesystem/vfs.hpp                      | 2 ++
 4 files changed, 11 insertions(+), 6 deletions(-)

(limited to 'kernel/include')

diff --git a/kernel/include/kernel/filesystem/mount.hpp b/kernel/include/kernel/filesystem/mount.hpp
index 0cd30b4..0f37687 100644
--- a/kernel/include/kernel/filesystem/mount.hpp
+++ b/kernel/include/kernel/filesystem/mount.hpp
@@ -5,20 +5,25 @@
 #include "kernel/filesystem/filesystem.hpp"
 
 #include <kstd/memory>
+#include <kstd/string>
+
+#include <string_view>
 
 namespace filesystem
 {
   struct mount
   {
     mount(kstd::shared_ptr<dentry> const & mount_dentry, kstd::shared_ptr<dentry> const & root_dentry,
-          kstd::shared_ptr<filesystem> const & fs);
+          kstd::shared_ptr<filesystem> const & fs, std::string_view mount_path);
 
     [[nodiscard]] auto get_mount_dentry() const -> kstd::shared_ptr<dentry>;
     [[nodiscard]] auto root_dentry() const -> kstd::shared_ptr<dentry> const &;
 
     [[nodiscard]] auto get_filesystem() const -> kstd::shared_ptr<filesystem> const &;
+    [[nodiscard]] auto get_mount_path() const -> std::string_view;
 
   private:
+    kstd::string m_mount_path;
     kstd::shared_ptr<dentry> m_mount_dentry;
     kstd::shared_ptr<dentry> m_root_dentry;
     kstd::shared_ptr<filesystem> m_filesystem{};
diff --git a/kernel/include/kernel/filesystem/mount_table.hpp b/kernel/include/kernel/filesystem/mount_table.hpp
index cf523c1..2cd66ea 100644
--- a/kernel/include/kernel/filesystem/mount_table.hpp
+++ b/kernel/include/kernel/filesystem/mount_table.hpp
@@ -1,12 +1,13 @@
 #ifndef TEACH_OS_KERNEL_FILESYSTEM_MOUNT_TABLE_HPP
 #define TEACH_OS_KERNEL_FILESYSTEM_MOUNT_TABLE_HPP
 
-#include "kernel/filesystem/dentry.hpp"
 #include "kernel/filesystem/mount.hpp"
 
 #include <kstd/memory>
 #include <kstd/vector>
 
+#include <string_view>
+
 namespace filesystem
 {
   struct mount_table
@@ -14,8 +15,7 @@ namespace filesystem
   public:
     void add_mount(kstd::shared_ptr<mount>);
 
-    [[nodiscard]] auto get_root_mount() const -> kstd::shared_ptr<mount>;
-    auto find_mount_by_dentry(kstd::shared_ptr<dentry> const & dentry) -> kstd::shared_ptr<mount>;
+    [[nodiscard]] auto find_longest_prefix_mount(std::string_view path) const -> kstd::shared_ptr<mount>;
 
   private:
     kstd::vector<kstd::shared_ptr<mount>> m_mounts;
diff --git a/kernel/include/kernel/filesystem/rootfs/rootfs_filesystem.hpp b/kernel/include/kernel/filesystem/rootfs/rootfs_filesystem.hpp
index cb07111..b3e03a9 100644
--- a/kernel/include/kernel/filesystem/rootfs/rootfs_filesystem.hpp
+++ b/kernel/include/kernel/filesystem/rootfs/rootfs_filesystem.hpp
@@ -4,14 +4,12 @@
 #include "kernel/devices/device.hpp"
 #include "kernel/filesystem/filesystem.hpp"
 #include "kernel/filesystem/inode.hpp"
-#include "kernel/filesystem/rootfs/rootfs_inode.hpp"
 
 #include <kstd/memory>
 #include <kstd/string>
 #include <kstd/vector>
 
 #include <string_view>
-#include <utility>
 
 namespace filesystem::rootfs
 {
diff --git a/kernel/include/kernel/filesystem/vfs.hpp b/kernel/include/kernel/filesystem/vfs.hpp
index f301b7a..9bee104 100644
--- a/kernel/include/kernel/filesystem/vfs.hpp
+++ b/kernel/include/kernel/filesystem/vfs.hpp
@@ -27,6 +27,8 @@ namespace filesystem
     auto init_internal() -> void;
 
     [[nodiscard]] auto resolve_path(std::string_view path) -> kstd::shared_ptr<dentry>;
+    auto do_mount_internal(std::string_view path, kstd::shared_ptr<dentry> const & mount_point_dentry,
+                           kstd::shared_ptr<filesystem> const & fs) -> void;
 
     mount_table m_mount_table;
   };
-- 
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