From d3c8b74020bfeee554394b7e41c58d5ddda6f396 Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Sat, 2 May 2026 14:23:19 +0200
Subject: refactoring

---
 kernel/src/filesystem/dentry.cpp | 17 +++++++++++++++++
 kernel/src/filesystem/vfs.cpp    | 32 ++------------------------------
 2 files changed, 19 insertions(+), 30 deletions(-)

(limited to 'kernel/src')

diff --git a/kernel/src/filesystem/dentry.cpp b/kernel/src/filesystem/dentry.cpp
index 572dd82..72500fd 100644
--- a/kernel/src/filesystem/dentry.cpp
+++ b/kernel/src/filesystem/dentry.cpp
@@ -5,6 +5,7 @@
 #include <kapi/system.hpp>
 
 #include <kstd/memory>
+#include <kstd/string>
 
 #include <algorithm>
 #include <cstdint>
@@ -38,6 +39,22 @@ namespace kernel::filesystem
     return m_name.view();
   }
 
+  // TODO BA-FS26 fix warning (do not use recursion)
+  auto dentry::get_full_path() const -> kstd::string
+  {
+    if (m_parent)
+    {
+      auto parent_path = m_parent->get_full_path();
+      if (parent_path != "/")
+      {
+        parent_path += '/';
+      }
+      return parent_path + m_name.view();
+    }
+
+    return m_name.empty() ? "/" : m_name.view();
+  }
+
   auto dentry::add_child(kstd::shared_ptr<dentry> const & child) -> void
   {
     m_children.push_back(child);
diff --git a/kernel/src/filesystem/vfs.cpp b/kernel/src/filesystem/vfs.cpp
index 41afad3..9a6625d 100644
--- a/kernel/src/filesystem/vfs.cpp
+++ b/kernel/src/filesystem/vfs.cpp
@@ -11,7 +11,6 @@
 
 #include <kstd/memory>
 #include <kstd/string>
-#include <kstd/vector>
 
 #include <optional>
 #include <ranges>
@@ -156,25 +155,6 @@ namespace kernel::filesystem
     }
 
     auto current_dentry = current_mount->root_dentry();
-    kstd::vector<std::string_view> resolved_parts{};
-
-    // TODO BA-FS26 remove again an get path out of the dentires instead of building it up again here
-    auto build_resolved_path = [&resolved_parts]() {
-      kstd::string resolved_path{"/"};
-
-      for (auto const & resolved_part : resolved_parts)
-      {
-        if (resolved_path.size() > 1)
-        {
-          resolved_path += '/';
-        }
-
-        resolved_path += resolved_part;
-      }
-
-      return resolved_path;
-    };
-
     std::string_view remaining = path.substr(current_mount->get_mount_path().size());
 
     auto path_parts =
@@ -191,11 +171,6 @@ namespace kernel::filesystem
 
       if (part_view == "..")
       {
-        if (!resolved_parts.empty())
-        {
-          resolved_parts.pop_back();
-        }
-
         auto parent_dentry = current_dentry->get_parent();
 
         if (current_dentry == current_mount->root_dentry())
@@ -222,8 +197,6 @@ namespace kernel::filesystem
         continue;
       }
 
-      resolved_parts.push_back(part_view);
-
       auto next_dentry = current_dentry->find_child(part_view);
       if (!next_dentry)
       {
@@ -237,9 +210,8 @@ namespace kernel::filesystem
       }
       else if (next_dentry->has_flag(dentry::dentry_flags::mounted))
       {
-        // change the mount point
-        // TODO BA-FS26 get resolved path out of the dentry...
-        current_mount = m_mount_table.find_longest_prefix_mount(build_resolved_path().view());
+        // TODO BA-FS26 really do it like this? or just call "get" without longes_prefix stuff
+        current_mount = m_mount_table.find_longest_prefix_mount(next_dentry->get_full_path().view());
         if (!current_mount)
         {
           kapi::system::panic("[FILESYSTEM] mount for dentry with mounted flag not found.");
-- 
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