From df5fa8aa3919f3f132509b236c3b3ac27ea113b1 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 18 Jul 2021 02:24:26 +0200
Subject: [PATCH] Kernel/ProcFS: Remove redundant ProcFS& member from
 ProcFSInode

---
 Kernel/FileSystem/ProcFS.cpp | 9 ++++-----
 Kernel/FileSystem/ProcFS.h   | 5 +++--
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/Kernel/FileSystem/ProcFS.cpp b/Kernel/FileSystem/ProcFS.cpp
index 8aea1d979f..51f0c98b45 100644
--- a/Kernel/FileSystem/ProcFS.cpp
+++ b/Kernel/FileSystem/ProcFS.cpp
@@ -184,7 +184,6 @@ NonnullRefPtr<ProcFSDirectoryInode> ProcFSDirectoryInode::create(const ProcFS& p
 
 ProcFSDirectoryInode::ProcFSDirectoryInode(const ProcFS& fs, const ProcFSExposedComponent& component)
     : ProcFSInode(fs, component)
-    , m_parent_fs(const_cast<ProcFS&>(fs))
 {
 }
 
@@ -205,17 +204,17 @@ InodeMetadata ProcFSDirectoryInode::metadata() const
 }
 KResult ProcFSDirectoryInode::traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)> callback) const
 {
-    MutexLocker locker(m_parent_fs.m_lock);
-    return m_associated_component->traverse_as_directory(m_parent_fs.fsid(), move(callback));
+    MutexLocker locker(fs().m_lock);
+    return m_associated_component->traverse_as_directory(fs().fsid(), move(callback));
 }
 
 RefPtr<Inode> ProcFSDirectoryInode::lookup(StringView name)
 {
-    MutexLocker locker(m_parent_fs.m_lock);
+    MutexLocker locker(fs().m_lock);
     auto component = m_associated_component->lookup(name);
     if (!component)
         return {};
-    return component->to_inode(m_parent_fs);
+    return component->to_inode(fs());
 }
 
 NonnullRefPtr<ProcFSLinkInode> ProcFSLinkInode::create(const ProcFS& procfs, const ProcFSExposedComponent& component)
diff --git a/Kernel/FileSystem/ProcFS.h b/Kernel/FileSystem/ProcFS.h
index 51d08108e0..564646cbe3 100644
--- a/Kernel/FileSystem/ProcFS.h
+++ b/Kernel/FileSystem/ProcFS.h
@@ -84,14 +84,15 @@ public:
     static NonnullRefPtr<ProcFSDirectoryInode> create(const ProcFS&, const ProcFSExposedComponent&);
     virtual ~ProcFSDirectoryInode() override;
 
+    ProcFS& fs() { return static_cast<ProcFS&>(Inode::fs()); }
+    ProcFS const& fs() const { return static_cast<ProcFS const&>(Inode::fs()); }
+
 protected:
     ProcFSDirectoryInode(const ProcFS&, const ProcFSExposedComponent&);
     // ^Inode
     virtual InodeMetadata metadata() const override;
     virtual KResult traverse_as_directory(Function<bool(FileSystem::DirectoryEntryView const&)>) const override;
     virtual RefPtr<Inode> lookup(StringView name) override;
-
-    ProcFS& m_parent_fs;
 };
 
 }