From 3ace886a9e9f044cd48de51f0a15aceb02bfa9b2 Mon Sep 17 00:00:00 2001
From: "marcel.braun" <marcel.braun@ost.ch>
Date: Tue, 17 Mar 2026 19:36:20 +0100
Subject: Clean up project folder structure

---
 kernel/src/filesystem/mount.cpp | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 kernel/src/filesystem/mount.cpp

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
new file mode 100644
index 0000000..a2c501f
--- /dev/null
+++ b/kernel/src/filesystem/mount.cpp
@@ -0,0 +1,32 @@
+#include "kernel/filesystem/mount.hpp"
+
+#include "kapi/system.hpp"
+
+#include "kernel/filesystem/filesystem.hpp"
+
+#include <kstd/memory>
+
+#include <string_view>
+
+namespace filesystem
+{
+  mount::mount(std::string_view const & path, kstd::shared_ptr<filesystem> const & fs)
+      : m_path(path)
+      , m_filesystem(fs)
+  {
+    if (!m_filesystem)
+    {
+      kapi::system::panic("[FILESYSTEM] mount initialized with null filesystem.");
+    }
+  }
+
+  auto mount::path() const -> std::string_view
+  {
+    return m_path;
+  }
+
+  auto mount::get_filesystem() const -> kstd::shared_ptr<filesystem> const &
+  {
+    return m_filesystem;
+  }
+}  // namespace filesystem
\ No newline at end of file
-- 
cgit v1.2.3


From b742349ba039d1a864462332bb7ae5a071afdec1 Mon Sep 17 00:00:00 2001
From: "marcel.braun" <marcel.braun@ost.ch>
Date: Tue, 24 Mar 2026 16:53:21 +0100
Subject: Refactor mount_table entry (mount) to use dentry as key instead of
 path

---
 kernel/src/filesystem/mount.cpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index a2c501f..b65f331 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -2,6 +2,7 @@
 
 #include "kapi/system.hpp"
 
+#include "kernel/filesystem/dentry.hpp"
 #include "kernel/filesystem/filesystem.hpp"
 
 #include <kstd/memory>
@@ -10,8 +11,8 @@
 
 namespace filesystem
 {
-  mount::mount(std::string_view const & path, kstd::shared_ptr<filesystem> const & fs)
-      : m_path(path)
+  mount::mount(kstd::shared_ptr<dentry> const & mount_dentry, kstd::shared_ptr<filesystem> const & fs)
+      : m_dentry(mount_dentry)
       , m_filesystem(fs)
   {
     if (!m_filesystem)
@@ -20,9 +21,9 @@ namespace filesystem
     }
   }
 
-  auto mount::path() const -> std::string_view
+  auto mount::get_dentry() const -> kstd::shared_ptr<dentry>
   {
-    return m_path;
+    return m_dentry;
   }
 
   auto mount::get_filesystem() const -> kstd::shared_ptr<filesystem> const &
-- 
cgit v1.2.3


From 84d4476650b31dbfc52becf2ff65ddce9d31c9ec Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Tue, 24 Mar 2026 23:54:28 +0100
Subject: implement a rootfs to handle / mounts correctly

---
 kernel/src/filesystem/mount.cpp | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index b65f331..d9937dc 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -11,8 +11,10 @@
 
 namespace filesystem
 {
-  mount::mount(kstd::shared_ptr<dentry> const & mount_dentry, kstd::shared_ptr<filesystem> const & fs)
-      : m_dentry(mount_dentry)
+  mount::mount(kstd::shared_ptr<dentry> const & mount_dentry, kstd::shared_ptr<dentry> const & root_dentry,
+               kstd::shared_ptr<filesystem> const & fs)
+      : m_mount_dentry(mount_dentry)
+      , m_root_dentry(root_dentry)
       , m_filesystem(fs)
   {
     if (!m_filesystem)
@@ -21,13 +23,18 @@ namespace filesystem
     }
   }
 
-  auto mount::get_dentry() const -> kstd::shared_ptr<dentry>
+  auto mount::get_mount_dentry() const -> kstd::shared_ptr<dentry>
   {
-    return m_dentry;
+    return m_mount_dentry;
   }
 
   auto mount::get_filesystem() const -> kstd::shared_ptr<filesystem> const &
   {
     return m_filesystem;
   }
+
+  auto mount::root_dentry() const -> kstd::shared_ptr<dentry> const &
+  {
+    return m_root_dentry;
+  }
 }  // namespace filesystem
\ No newline at end of file
-- 
cgit v1.2.3


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/src/filesystem/mount.cpp | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index d9937dc..afc07fa 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -6,14 +6,16 @@
 #include "kernel/filesystem/filesystem.hpp"
 
 #include <kstd/memory>
+#include <kstd/string>
 
 #include <string_view>
 
 namespace filesystem
 {
   mount::mount(kstd::shared_ptr<dentry> const & mount_dentry, kstd::shared_ptr<dentry> const & root_dentry,
-               kstd::shared_ptr<filesystem> const & fs)
-      : m_mount_dentry(mount_dentry)
+               kstd::shared_ptr<filesystem> const & fs, std::string_view mount_path)
+      : m_mount_path(mount_path)
+      , m_mount_dentry(mount_dentry)
       , m_root_dentry(root_dentry)
       , m_filesystem(fs)
   {
@@ -37,4 +39,9 @@ namespace filesystem
   {
     return m_root_dentry;
   }
+
+  auto mount::get_mount_path() const -> std::string_view
+  {
+    return m_mount_path.view();
+  }
 }  // namespace filesystem
\ No newline at end of file
-- 
cgit v1.2.3


From 5603c7ec2b07dbc772fe2c20a9e9e176c5465c57 Mon Sep 17 00:00:00 2001
From: "marcel.braun" <marcel.braun@ost.ch>
Date: Mon, 30 Mar 2026 21:22:22 +0200
Subject: Move everything in kernel into kernel namespace

---
 kernel/src/filesystem/mount.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index afc07fa..f9e709c 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -10,7 +10,7 @@
 
 #include <string_view>
 
-namespace filesystem
+namespace kernel::filesystem
 {
   mount::mount(kstd::shared_ptr<dentry> const & mount_dentry, kstd::shared_ptr<dentry> const & root_dentry,
                kstd::shared_ptr<filesystem> const & fs, std::string_view mount_path)
@@ -44,4 +44,4 @@ namespace filesystem
   {
     return m_mount_path.view();
   }
-}  // namespace filesystem
\ No newline at end of file
+}  // namespace kernel::filesystem
\ No newline at end of file
-- 
cgit v1.2.3


From dd330e7a05905713acfa87ec109956bfe78f78c4 Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Wed, 8 Apr 2026 09:31:32 +0200
Subject: add descriptions, some refactoring

---
 kernel/src/filesystem/mount.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index f9e709c..a6d2f7e 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -25,7 +25,7 @@ namespace kernel::filesystem
     }
   }
 
-  auto mount::get_mount_dentry() const -> kstd::shared_ptr<dentry>
+  auto mount::get_mount_dentry() const -> kstd::shared_ptr<dentry> const &
   {
     return m_mount_dentry;
   }
-- 
cgit v1.2.3


From 2793770dc6eba30b73b4a4993618d2cbe184790e Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Wed, 8 Apr 2026 15:21:10 +0200
Subject: implement unmount, improve error codes

---
 kernel/src/filesystem/mount.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index a6d2f7e..d165385 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -13,11 +13,13 @@
 namespace kernel::filesystem
 {
   mount::mount(kstd::shared_ptr<dentry> const & mount_dentry, kstd::shared_ptr<dentry> const & root_dentry,
-               kstd::shared_ptr<filesystem> const & fs, std::string_view mount_path)
+           kstd::shared_ptr<filesystem> const & fs, std::string_view mount_path,
+           kstd::shared_ptr<mount> const & parent_mount)
       : m_mount_path(mount_path)
       , m_mount_dentry(mount_dentry)
       , m_root_dentry(root_dentry)
       , m_filesystem(fs)
+      , m_parent_mount(parent_mount)
   {
     if (!m_filesystem)
     {
@@ -44,4 +46,9 @@ namespace kernel::filesystem
   {
     return m_mount_path.view();
   }
+
+  auto mount::get_parent_mount() const -> kstd::shared_ptr<mount> const &
+  {
+    return m_parent_mount;
+  }
 }  // namespace kernel::filesystem
\ No newline at end of file
-- 
cgit v1.2.3


From 2d8fed40bd0d0f8144783b6b344dc79944291b72 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Thu, 23 Apr 2026 13:31:17 +0200
Subject: chore: organize includes

---
 kernel/src/filesystem/mount.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index d165385..9c8584b 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -1,10 +1,10 @@
 #include "kernel/filesystem/mount.hpp"
 
-#include "kapi/system.hpp"
-
 #include "kernel/filesystem/dentry.hpp"
 #include "kernel/filesystem/filesystem.hpp"
 
+#include "kapi/system.hpp"
+
 #include <kstd/memory>
 #include <kstd/string>
 
@@ -13,8 +13,8 @@
 namespace kernel::filesystem
 {
   mount::mount(kstd::shared_ptr<dentry> const & mount_dentry, kstd::shared_ptr<dentry> const & root_dentry,
-           kstd::shared_ptr<filesystem> const & fs, std::string_view mount_path,
-           kstd::shared_ptr<mount> const & parent_mount)
+               kstd::shared_ptr<filesystem> const & fs, std::string_view mount_path,
+               kstd::shared_ptr<mount> const & parent_mount)
       : m_mount_path(mount_path)
       , m_mount_dentry(mount_dentry)
       , m_root_dentry(root_dentry)
-- 
cgit v1.2.3


From f6f10575f75ac23d06e1d94f7861611503daa7af Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Thu, 23 Apr 2026 14:03:28 +0200
Subject: chore: banish relative includes

---
 kernel/src/filesystem/mount.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index 9c8584b..67450b7 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -1,9 +1,9 @@
-#include "kernel/filesystem/mount.hpp"
+#include <kernel/filesystem/mount.hpp>
 
-#include "kernel/filesystem/dentry.hpp"
-#include "kernel/filesystem/filesystem.hpp"
+#include <kernel/filesystem/dentry.hpp>
+#include <kernel/filesystem/filesystem.hpp>
 
-#include "kapi/system.hpp"
+#include <kapi/system.hpp>
 
 #include <kstd/memory>
 #include <kstd/string>
-- 
cgit v1.2.3


From 00aa2c8695b81944798010d81d600038e1f1ef3d Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Sun, 10 May 2026 19:08:07 +0200
Subject: remove mount_path from mount struct (retrieve path from
 m_mount_dentry)

---
 kernel/src/filesystem/mount.cpp | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index 67450b7..c474c8e 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -13,10 +13,8 @@
 namespace kernel::filesystem
 {
   mount::mount(kstd::shared_ptr<dentry> const & mount_dentry, kstd::shared_ptr<dentry> const & root_dentry,
-               kstd::shared_ptr<filesystem> const & fs, std::string_view mount_path,
-               kstd::shared_ptr<mount> const & parent_mount)
-      : m_mount_path(mount_path)
-      , m_mount_dentry(mount_dentry)
+               kstd::shared_ptr<filesystem> const & fs, kstd::shared_ptr<mount> const & parent_mount)
+      : m_mount_dentry(mount_dentry)
       , m_root_dentry(root_dentry)
       , m_filesystem(fs)
       , m_parent_mount(parent_mount)
@@ -42,9 +40,13 @@ namespace kernel::filesystem
     return m_root_dentry;
   }
 
-  auto mount::get_mount_path() const -> std::string_view
+  auto mount::get_mount_path() const -> kstd::string
   {
-    return m_mount_path.view();
+    if (m_mount_dentry)
+    {
+      return m_mount_dentry->get_full_path();
+    }
+    return "/";
   }
 
   auto mount::get_parent_mount() const -> kstd::shared_ptr<mount> const &
-- 
cgit v1.2.3


From 85fd2e3b4da7d84a9357b35bde740b780fe0cb72 Mon Sep 17 00:00:00 2001
From: Marcel Braun <marcel.braun@ost.ch>
Date: Sun, 10 May 2026 21:49:20 +0200
Subject: Rename root_dentry() to get_root_dentry()

---
 kernel/src/filesystem/mount.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index c474c8e..ebacf32 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -35,7 +35,7 @@ namespace kernel::filesystem
     return m_filesystem;
   }
 
-  auto mount::root_dentry() const -> kstd::shared_ptr<dentry> const &
+  auto mount::get_root_dentry() const -> kstd::shared_ptr<dentry> const &
   {
     return m_root_dentry;
   }
-- 
cgit v1.2.3


From 5bac7cc7cc37d137b633afd3910f251a22818b80 Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Mon, 11 May 2026 22:49:22 +0200
Subject: fix build after rebase

---
 kernel/src/filesystem/mount.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index ebacf32..749c86a 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -44,7 +44,7 @@ namespace kernel::filesystem
   {
     if (m_mount_dentry)
     {
-      return m_mount_dentry->get_full_path();
+      return m_mount_dentry->get_absolute_path();
     }
     return "/";
   }
-- 
cgit v1.2.3


From 1d647adb1ba20121eeb5c8e4470f48b2e972b3d4 Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Fri, 15 May 2026 16:50:55 +0200
Subject: Mount can only be unmounted if no references are present, increment
 references on open file and decrement on close file

---
 kernel/src/filesystem/mount.cpp | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index 749c86a..3016509 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -18,6 +18,7 @@ namespace kernel::filesystem
       , m_root_dentry(root_dentry)
       , m_filesystem(fs)
       , m_parent_mount(parent_mount)
+      , m_ref_count(0)
   {
     if (!m_filesystem)
     {
@@ -53,4 +54,25 @@ namespace kernel::filesystem
   {
     return m_parent_mount;
   }
+
+  auto mount::increment_ref_count() -> void
+  {
+    m_ref_count += 1;
+  }
+
+  auto mount::decrement_ref_count() -> bool
+  {
+    if (m_ref_count == 0)
+    {
+      return false;
+    }
+
+    m_ref_count -= 1;
+    return true;
+  }
+
+  auto mount::is_ready_to_unmount() const -> bool
+  {
+    return m_ref_count == 0;
+  }
 }  // namespace kernel::filesystem
\ No newline at end of file
-- 
cgit v1.2.3


From 7ecf092ca7ff91dd59e81eda7ef2b05fe837844d Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Sat, 16 May 2026 13:53:34 +0200
Subject: add mount tests

---
 kernel/src/filesystem/mount.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index 3016509..1e04083 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -8,6 +8,7 @@
 #include <kstd/memory>
 #include <kstd/string>
 
+#include <cstddef>
 #include <string_view>
 
 namespace kernel::filesystem
@@ -75,4 +76,9 @@ namespace kernel::filesystem
   {
     return m_ref_count == 0;
   }
+
+  auto mount::get_ref_count() const -> size_t
+  {
+    return m_ref_count;
+  }
 }  // namespace kernel::filesystem
\ No newline at end of file
-- 
cgit v1.2.3


From 3b2f36d242eb895fd893ec7a674ff608f44f69ac Mon Sep 17 00:00:00 2001
From: Lukas Oesch <lukasoesch20@gmail.com>
Date: Sat, 16 May 2026 16:12:36 +0200
Subject: refactoring

---
 kernel/src/filesystem/mount.cpp | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index 1e04083..b64c370 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -27,7 +27,7 @@ namespace kernel::filesystem
     }
   }
 
-  auto mount::get_mount_dentry() const -> kstd::shared_ptr<dentry> const &
+  auto mount::mount_dentry() const -> kstd::shared_ptr<dentry> const &
   {
     return m_mount_dentry;
   }
@@ -37,21 +37,21 @@ namespace kernel::filesystem
     return m_filesystem;
   }
 
-  auto mount::get_root_dentry() const -> kstd::shared_ptr<dentry> const &
+  auto mount::root_dentry() const -> kstd::shared_ptr<dentry> const &
   {
     return m_root_dentry;
   }
 
-  auto mount::get_mount_path() const -> kstd::string
+  auto mount::mount_path() const -> kstd::string
   {
     if (m_mount_dentry)
     {
-      return m_mount_dentry->get_absolute_path();
+      return m_mount_dentry->absolute_path();
     }
     return "/";
   }
 
-  auto mount::get_parent_mount() const -> kstd::shared_ptr<mount> const &
+  auto mount::parent_mount() const -> kstd::shared_ptr<mount> const &
   {
     return m_parent_mount;
   }
@@ -77,7 +77,7 @@ namespace kernel::filesystem
     return m_ref_count == 0;
   }
 
-  auto mount::get_ref_count() const -> size_t
+  auto mount::ref_count() const -> size_t
   {
     return m_ref_count;
   }
-- 
cgit v1.2.3


From 61d29a288334960cd9f43df91e4fd632a7f6ad66 Mon Sep 17 00:00:00 2001
From: Marcel Braun <marcel.braun@ost.ch>
Date: Mon, 25 May 2026 11:13:18 +0200
Subject: Increase reference count of source_mount when one of its files is
 mounted somewhere

---
 kernel/src/filesystem/mount.cpp | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

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

diff --git a/kernel/src/filesystem/mount.cpp b/kernel/src/filesystem/mount.cpp
index b64c370..ead7479 100644
--- a/kernel/src/filesystem/mount.cpp
+++ b/kernel/src/filesystem/mount.cpp
@@ -14,11 +14,13 @@
 namespace kernel::filesystem
 {
   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<mount> const & parent_mount)
+               kstd::shared_ptr<filesystem> const & fs, kstd::shared_ptr<mount> const & parent_mount,
+               kstd::shared_ptr<mount> const & source_mount)
       : m_mount_dentry(mount_dentry)
       , m_root_dentry(root_dentry)
       , m_filesystem(fs)
       , m_parent_mount(parent_mount)
+      , m_source_mount(source_mount)
       , m_ref_count(0)
   {
     if (!m_filesystem)
@@ -56,20 +58,24 @@ namespace kernel::filesystem
     return m_parent_mount;
   }
 
+  auto mount::source_mount() const -> kstd::shared_ptr<mount>
+  {
+    return m_source_mount.lock();
+  }
+
   auto mount::increment_ref_count() -> void
   {
     m_ref_count += 1;
   }
 
-  auto mount::decrement_ref_count() -> bool
+  auto mount::decrement_ref_count() -> void
   {
     if (m_ref_count == 0)
     {
-      return false;
+      kapi::system::panic("[FILESYSTEM] decrement_ref_count() was called but ref_count is 0");
     }
 
     m_ref_count -= 1;
-    return true;
   }
 
   auto mount::is_ready_to_unmount() const -> bool
-- 
cgit v1.2.3