Kernel: Remove unused functions related to reading full inodes

Kernel/FileSystem/Inode.cpp

@@ -51,30 +51,6 @@ void Inode::sync()
     fs().flush_writes();
 }
 
-ErrorOr<NonnullOwnPtr<KBuffer>> Inode::read_entire(OpenFileDescription* description) const
-{
-    auto builder = TRY(KBufferBuilder::try_create());
-
-    u8 buffer[4096];
-    off_t offset = 0;
-    for (;;) {
-        auto buf = UserOrKernelBuffer::for_kernel_buffer(buffer);
-        auto nread = TRY(read_bytes(offset, sizeof(buffer), buf, description));
-        VERIFY(nread <= sizeof(buffer));
-        if (nread == 0)
-            break;
-        TRY(builder.append((char const*)buffer, nread));
-        offset += nread;
-        if (nread < sizeof(buffer))
-            break;
-    }
-
-    auto entire_file = builder.build();
-    if (!entire_file)
-        return ENOMEM;
-    return entire_file.release_nonnull();
-}
-
 ErrorOr<NonnullRefPtr<Custody>> Inode::resolve_as_link(Credentials const& credentials, Custody& base, RefPtr<Custody>* out_parent, int options, int symlink_recursion_level) const
 {
     // The default implementation simply treats the stored

Kernel/FileSystem/Inode.h

@@ -53,8 +53,6 @@ public:
     InodeIdentifier identifier() const { return { fsid(), index() }; }
     virtual InodeMetadata metadata() const = 0;
 
-    ErrorOr<NonnullOwnPtr<KBuffer>> read_entire(OpenFileDescription* = nullptr) const;
-
     ErrorOr<size_t> write_bytes(off_t, size_t, UserOrKernelBuffer const& data, OpenFileDescription*);
     ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const;
     ErrorOr<size_t> read_until_filled_or_end(off_t, size_t, UserOrKernelBuffer buffer, OpenFileDescription*) const;

Kernel/FileSystem/OpenFileDescription.cpp

@@ -202,14 +202,6 @@ bool OpenFileDescription::can_read() const
     return m_file->can_read(*this, offset());
 }
 
-ErrorOr<NonnullOwnPtr<KBuffer>> OpenFileDescription::read_entire_file()
-{
-    // HACK ALERT: (This entire function)
-    VERIFY(m_file->is_inode());
-    VERIFY(m_inode);
-    return m_inode->read_entire(this);
-}
-
 ErrorOr<size_t> OpenFileDescription::get_dir_entries(UserOrKernelBuffer& output_buffer, size_t size)
 {
     if (!is_directory())

Kernel/FileSystem/OpenFileDescription.h

@@ -58,8 +58,6 @@ public:
 
     ErrorOr<size_t> get_dir_entries(UserOrKernelBuffer& buffer, size_t);
 
-    ErrorOr<NonnullOwnPtr<KBuffer>> read_entire_file();
-
     ErrorOr<NonnullOwnPtr<KString>> original_absolute_path() const;
     ErrorOr<NonnullOwnPtr<KString>> pseudo_path() const;