Kernel/SysFS: Remove unnecessary mutex lockers in SysFS metadata getters

SysFS inodes have immutable metadata once created.

Author: awesomekling

Kernel/FileSystem/SysFS.cpp

@@ -113,7 +113,7 @@ KResultOr<NonnullRefPtr<Inode>> SysFSInode::lookup(StringView)
 
 InodeMetadata SysFSInode::metadata() const
 {
-    MutexLocker locker(m_inode_lock);
+    // NOTE: No locking required as m_associated_component or its component index will never change during our lifetime.
     InodeMetadata metadata;
     metadata.inode = { fsid(), m_associated_component->component_index() };
     metadata.mode = S_IFREG | S_IRUSR | S_IRGRP | S_IROTH;
@@ -179,7 +179,7 @@ SysFSDirectoryInode::~SysFSDirectoryInode()
 
 InodeMetadata SysFSDirectoryInode::metadata() const
 {
-    MutexLocker locker(m_inode_lock);
+    // NOTE: No locking required as m_associated_component or its component index will never change during our lifetime.
     InodeMetadata metadata;
     metadata.inode = { fsid(), m_associated_component->component_index() };
     metadata.mode = S_IFDIR | S_IRUSR | S_IRGRP | S_IROTH | S_IXOTH;