Kernel: Rename FileDescriptor to FileDescription.

After reading a bunch of POSIX specs, I've learned that a file descriptor
is the number that refers to a file description, not the description itself.
So this patch renames FileDescriptor to FileDescription, and Process now has
FileDescription* file_description(int fd).

67 files changed, 364 insertions, 364 deletions

diff --git a/Kernel/Console.cpp b/Kernel/Console.cpp
index 394270a785..5ee1048557 100644
--- a/Kernel/Console.cpp
+++ b/Kernel/Console.cpp
@@ -23,19 +23,19 @@ Console::~Console()
 {
 }
 
-bool Console::can_read(FileDescriptor&) const
+bool Console::can_read(FileDescription&) const
 {
     return false;
 }
 
-ssize_t Console::read(FileDescriptor&, byte*, ssize_t)
+ssize_t Console::read(FileDescription&, byte*, ssize_t)
 {
     // FIXME: Implement reading from the console.
     //        Maybe we could use a ring buffer for this device?
     return 0;
 }
 
-ssize_t Console::write(FileDescriptor&, const byte* data, ssize_t size)
+ssize_t Console::write(FileDescription&, const byte* data, ssize_t size)
 {
     if (!size)
         return 0;
diff --git a/Kernel/Console.h b/Kernel/Console.h
index 59fe006c4e..e1f4e2d2a3 100644
--- a/Kernel/Console.h
+++ b/Kernel/Console.h
@@ -19,10 +19,10 @@ public:
     virtual ~Console() override;
 
     // ^CharacterDevice
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual bool can_write(FileDescriptor&) const override { return true; }
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual bool can_write(FileDescription&) const override { return true; }
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
     virtual const char* class_name() const override { return "Console"; }
 
     void set_implementation(ConsoleImplementation* implementation) { m_implementation = implementation; }
diff --git a/Kernel/Devices/BXVGADevice.cpp b/Kernel/Devices/BXVGADevice.cpp
index e4b2d4c356..e8ad647c32 100644
--- a/Kernel/Devices/BXVGADevice.cpp
+++ b/Kernel/Devices/BXVGADevice.cpp
@@ -84,7 +84,7 @@ dword BXVGADevice::find_framebuffer_address()
     return framebuffer_address;
 }
 
-KResultOr<Region*> BXVGADevice::mmap(Process& process, FileDescriptor&, LinearAddress preferred_laddr, size_t offset, size_t size, int prot)
+KResultOr<Region*> BXVGADevice::mmap(Process& process, FileDescription&, LinearAddress preferred_laddr, size_t offset, size_t size, int prot)
 {
     ASSERT(offset == 0);
     ASSERT(size == framebuffer_size_in_bytes());
@@ -104,7 +104,7 @@ KResultOr<Region*> BXVGADevice::mmap(Process& process, FileDescriptor&, LinearAd
     return region;
 }
 
-int BXVGADevice::ioctl(FileDescriptor&, unsigned request, unsigned arg)
+int BXVGADevice::ioctl(FileDescription&, unsigned request, unsigned arg)
 {
     switch (request) {
     case BXVGA_DEV_IOCTL_SET_Y_OFFSET:
@@ -124,22 +124,22 @@ int BXVGADevice::ioctl(FileDescriptor&, unsigned request, unsigned arg)
     };
 }
 
-bool BXVGADevice::can_read(FileDescriptor&) const
+bool BXVGADevice::can_read(FileDescription&) const
 {
     ASSERT_NOT_REACHED();
 }
 
-bool BXVGADevice::can_write(FileDescriptor&) const
+bool BXVGADevice::can_write(FileDescription&) const
 {
     ASSERT_NOT_REACHED();
 }
 
-ssize_t BXVGADevice::read(FileDescriptor&, byte*, ssize_t)
+ssize_t BXVGADevice::read(FileDescription&, byte*, ssize_t)
 {
     ASSERT_NOT_REACHED();
 }
 
-ssize_t BXVGADevice::write(FileDescriptor&, const byte*, ssize_t)
+ssize_t BXVGADevice::write(FileDescription&, const byte*, ssize_t)
 {
     ASSERT_NOT_REACHED();
 }
diff --git a/Kernel/Devices/BXVGADevice.h b/Kernel/Devices/BXVGADevice.h
index 2270a41a9f..ac8b6f4fa8 100644
--- a/Kernel/Devices/BXVGADevice.h
+++ b/Kernel/Devices/BXVGADevice.h
@@ -17,18 +17,18 @@ public:
     void set_resolution(int width, int height);
     void set_y_offset(int);
 
-    virtual int ioctl(FileDescriptor&, unsigned request, unsigned arg) override;
-    virtual KResultOr<Region*> mmap(Process&, FileDescriptor&, LinearAddress preferred_laddr, size_t offset, size_t, int prot) override;
+    virtual int ioctl(FileDescription&, unsigned request, unsigned arg) override;
+    virtual KResultOr<Region*> mmap(Process&, FileDescription&, LinearAddress preferred_laddr, size_t offset, size_t, int prot) override;
 
     size_t framebuffer_size_in_bytes() const { return m_framebuffer_size.area() * sizeof(dword) * 2; }
     Size framebuffer_size() const { return m_framebuffer_size; }
 
 private:
     virtual const char* class_name() const override { return "BXVGA"; }
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual bool can_write(FileDescriptor&) const override;
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual bool can_write(FileDescription&) const override;
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
 
     void set_register(word index, word value);
     dword find_framebuffer_address();
diff --git a/Kernel/Devices/DebugLogDevice.cpp b/Kernel/Devices/DebugLogDevice.cpp
index daa879ffb1..838101dda4 100644
--- a/Kernel/Devices/DebugLogDevice.cpp
+++ b/Kernel/Devices/DebugLogDevice.cpp
@@ -19,7 +19,7 @@ DebugLogDevice::~DebugLogDevice()
 {
 }
 
-ssize_t DebugLogDevice::write(FileDescriptor&, const byte* data, ssize_t data_size)
+ssize_t DebugLogDevice::write(FileDescription&, const byte* data, ssize_t data_size)
 {
     for (int i = 0; i < data_size; ++i)
         IO::out8(0xe9, data[i]);
diff --git a/Kernel/Devices/DebugLogDevice.h b/Kernel/Devices/DebugLogDevice.h
index 9b09205074..2ef4ade046 100644
--- a/Kernel/Devices/DebugLogDevice.h
+++ b/Kernel/Devices/DebugLogDevice.h
@@ -9,9 +9,9 @@ public:
 
 private:
     // ^CharacterDevice
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override { return 0; }
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual bool can_write(FileDescriptor&) const override { return true; }
-    virtual bool can_read(FileDescriptor&) const override { return true; }
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override { return 0; }
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual bool can_write(FileDescription&) const override { return true; }
+    virtual bool can_read(FileDescription&) const override { return true; }
     virtual const char* class_name() const override { return "DebugLogDevice"; }
 };
diff --git a/Kernel/Devices/Device.cpp b/Kernel/Devices/Device.cpp
index fe3c28f01f..24a5274456 100644
--- a/Kernel/Devices/Device.cpp
+++ b/Kernel/Devices/Device.cpp
@@ -14,7 +14,7 @@ Device::~Device()
     VFS::the().unregister_device({}, *this);
 }
 
-String Device::absolute_path(const FileDescriptor&) const
+String Device::absolute_path(const FileDescription&) const
 {
     return String::format("device:%u,%u (%s)", m_major, m_minor, class_name());
 }
diff --git a/Kernel/Devices/Device.h b/Kernel/Devices/Device.h
index 7c19a9fea9..3b2256cf64 100644
--- a/Kernel/Devices/Device.h
+++ b/Kernel/Devices/Device.h
@@ -19,7 +19,7 @@ public:
     unsigned major() const { return m_major; }
     unsigned minor() const { return m_minor; }
 
-    virtual String absolute_path(const FileDescriptor&) const override;
+    virtual String absolute_path(const FileDescription&) const override;
 
     uid_t uid() const { return m_uid; }
     uid_t gid() const { return m_gid; }
diff --git a/Kernel/Devices/FullDevice.cpp b/Kernel/Devices/FullDevice.cpp
index 024cd699e2..fd4403d1ce 100644
--- a/Kernel/Devices/FullDevice.cpp
+++ b/Kernel/Devices/FullDevice.cpp
@@ -12,19 +12,19 @@ FullDevice::~FullDevice()
 {
 }
 
-bool FullDevice::can_read(FileDescriptor&) const
+bool FullDevice::can_read(FileDescription&) const
 {
     return true;
 }
 
-ssize_t FullDevice::read(FileDescriptor&, byte* buffer, ssize_t size)
+ssize_t FullDevice::read(FileDescription&, byte* buffer, ssize_t size)
 {
     ssize_t count = min(PAGE_SIZE, size);
     memset(buffer, 0, (size_t)count);
     return count;
 }
 
-ssize_t FullDevice::write(FileDescriptor&, const byte*, ssize_t size)
+ssize_t FullDevice::write(FileDescription&, const byte*, ssize_t size)
 {
     if (size == 0)
         return 0;
diff --git a/Kernel/Devices/FullDevice.h b/Kernel/Devices/FullDevice.h
index 9974e47c4d..fa4ffcb8bc 100644
--- a/Kernel/Devices/FullDevice.h
+++ b/Kernel/Devices/FullDevice.h
@@ -10,9 +10,9 @@ public:
 
 private:
     // ^CharacterDevice
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual bool can_write(FileDescriptor&) const override { return true; }
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual bool can_write(FileDescription&) const override { return true; }
     virtual const char* class_name() const override { return "FullDevice"; }
 };
diff --git a/Kernel/Devices/KeyboardDevice.cpp b/Kernel/Devices/KeyboardDevice.cpp
index 856fcc2fb8..7a8464e598 100644
--- a/Kernel/Devices/KeyboardDevice.cpp
+++ b/Kernel/Devices/KeyboardDevice.cpp
@@ -208,12 +208,12 @@ KeyboardDevice::~KeyboardDevice()
 {
 }
 
-bool KeyboardDevice::can_read(FileDescriptor&) const
+bool KeyboardDevice::can_read(FileDescription&) const
 {
     return !m_queue.is_empty();
 }
 
-ssize_t KeyboardDevice::read(FileDescriptor&, byte* buffer, ssize_t size)
+ssize_t KeyboardDevice::read(FileDescription&, byte* buffer, ssize_t size)
 {
     ssize_t nread = 0;
     while (nread < size) {
@@ -229,7 +229,7 @@ ssize_t KeyboardDevice::read(FileDescriptor&, byte* buffer, ssize_t size)
     return nread;
 }
 
-ssize_t KeyboardDevice::write(FileDescriptor&, const byte*, ssize_t)
+ssize_t KeyboardDevice::write(FileDescription&, const byte*, ssize_t)
 {
     return 0;
 }
diff --git a/Kernel/Devices/KeyboardDevice.h b/Kernel/Devices/KeyboardDevice.h
index 16f134b2a7..1edffe3869 100644
--- a/Kernel/Devices/KeyboardDevice.h
+++ b/Kernel/Devices/KeyboardDevice.h
@@ -23,10 +23,10 @@ public:
     void set_client(KeyboardClient* client) { m_client = client; }
 
     // ^CharacterDevice
-    virtual ssize_t read(FileDescriptor&, byte* buffer, ssize_t) override;
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual ssize_t write(FileDescriptor&, const byte* buffer, ssize_t) override;
-    virtual bool can_write(FileDescriptor&) const override { return true; }
+    virtual ssize_t read(FileDescription&, byte* buffer, ssize_t) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual ssize_t write(FileDescription&, const byte* buffer, ssize_t) override;
+    virtual bool can_write(FileDescription&) const override { return true; }
 
 private:
     // ^IRQHandler
diff --git a/Kernel/Devices/NullDevice.cpp b/Kernel/Devices/NullDevice.cpp
index e93bd55891..c04f84e1ca 100644
--- a/Kernel/Devices/NullDevice.cpp
+++ b/Kernel/Devices/NullDevice.cpp
@@ -20,17 +20,17 @@ NullDevice::~NullDevice()
 {
 }
 
-bool NullDevice::can_read(FileDescriptor&) const
+bool NullDevice::can_read(FileDescription&) const
 {
     return true;
 }
 
-ssize_t NullDevice::read(FileDescriptor&, byte*, ssize_t)
+ssize_t NullDevice::read(FileDescription&, byte*, ssize_t)
 {
     return 0;
 }
 
-ssize_t NullDevice::write(FileDescriptor&, const byte*, ssize_t buffer_size)
+ssize_t NullDevice::write(FileDescription&, const byte*, ssize_t buffer_size)
 {
     return min(PAGE_SIZE, buffer_size);
 }
diff --git a/Kernel/Devices/NullDevice.h b/Kernel/Devices/NullDevice.h
index 47ba7baf5a..964565c690 100644
--- a/Kernel/Devices/NullDevice.h
+++ b/Kernel/Devices/NullDevice.h
@@ -12,9 +12,9 @@ public:
 
 private:
     // ^CharacterDevice
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual bool can_write(FileDescriptor&) const override { return true; }
-    virtual bool can_read(FileDescriptor&) const override;
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual bool can_write(FileDescription&) const override { return true; }
+    virtual bool can_read(FileDescription&) const override;
     virtual const char* class_name() const override { return "NullDevice"; }
 };
diff --git a/Kernel/Devices/PS2MouseDevice.cpp b/Kernel/Devices/PS2MouseDevice.cpp
index c7d8ff54f5..a7f2fe296d 100644
--- a/Kernel/Devices/PS2MouseDevice.cpp
+++ b/Kernel/Devices/PS2MouseDevice.cpp
@@ -218,12 +218,12 @@ byte PS2MouseDevice::mouse_read()
     return IO::in8(0x60);
 }
 
-bool PS2MouseDevice::can_read(FileDescriptor&) const
+bool PS2MouseDevice::can_read(FileDescription&) const
 {
     return !m_queue.is_empty();
 }
 
-ssize_t PS2MouseDevice::read(FileDescriptor&, byte* buffer, ssize_t size)
+ssize_t PS2MouseDevice::read(FileDescription&, byte* buffer, ssize_t size)
 {
     ssize_t nread = 0;
     while (nread < size) {
@@ -239,7 +239,7 @@ ssize_t PS2MouseDevice::read(FileDescriptor&, byte* buffer, ssize_t size)
     return nread;
 }
 
-ssize_t PS2MouseDevice::write(FileDescriptor&, const byte*, ssize_t)
+ssize_t PS2MouseDevice::write(FileDescription&, const byte*, ssize_t)
 {
     return 0;
 }
diff --git a/Kernel/Devices/PS2MouseDevice.h b/Kernel/Devices/PS2MouseDevice.h
index de97cfe4e1..e63db8a998 100644
--- a/Kernel/Devices/PS2MouseDevice.h
+++ b/Kernel/Devices/PS2MouseDevice.h
@@ -14,10 +14,10 @@ public:
     static PS2MouseDevice& the();
 
     // ^CharacterDevice
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual bool can_write(FileDescriptor&) const override { return true; }
+    virtual bool can_read(FileDescription&) const override;
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual bool can_write(FileDescription&) const override { return true; }
 
 private:
     // ^IRQHandler
diff --git a/Kernel/Devices/RandomDevice.cpp b/Kernel/Devices/RandomDevice.cpp
index 354212fbcd..3e3cfdd023 100644
--- a/Kernel/Devices/RandomDevice.cpp
+++ b/Kernel/Devices/RandomDevice.cpp
@@ -26,12 +26,12 @@ static void mysrand(unsigned seed)
 }
 #endif
 
-bool RandomDevice::can_read(FileDescriptor&) const
+bool RandomDevice::can_read(FileDescription&) const
 {
     return true;
 }
 
-ssize_t RandomDevice::read(FileDescriptor&, byte* buffer, ssize_t size)
+ssize_t RandomDevice::read(FileDescription&, byte* buffer, ssize_t size)
 {
     const int range = 'z' - 'a';
     ssize_t nread = min(size, PAGE_SIZE);
@@ -42,7 +42,7 @@ ssize_t RandomDevice::read(FileDescriptor&, byte* buffer, ssize_t size)
     return nread;
 }
 
-ssize_t RandomDevice::write(FileDescriptor&, const byte*, ssize_t size)
+ssize_t RandomDevice::write(FileDescription&, const byte*, ssize_t size)
 {
     // FIXME: Use input for entropy? I guess that could be a neat feature?
     return min(PAGE_SIZE, size);
diff --git a/Kernel/Devices/RandomDevice.h b/Kernel/Devices/RandomDevice.h
index ecce3c6bfb..4d6dce159e 100644
--- a/Kernel/Devices/RandomDevice.h
+++ b/Kernel/Devices/RandomDevice.h
@@ -12,9 +12,9 @@ public:
 
 private:
     // ^CharacterDevice
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual bool can_write(FileDescriptor&) const override { return true; }
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual bool can_write(FileDescription&) const override { return true; }
     virtual const char* class_name() const override { return "RandomDevice"; }
 };
diff --git a/Kernel/Devices/ZeroDevice.cpp b/Kernel/Devices/ZeroDevice.cpp
index ee809045bc..aa9e98e3a8 100644
--- a/Kernel/Devices/ZeroDevice.cpp
+++ b/Kernel/Devices/ZeroDevice.cpp
@@ -11,19 +11,19 @@ ZeroDevice::~ZeroDevice()
 {
 }
 
-bool ZeroDevice::can_read(FileDescriptor&) const
+bool ZeroDevice::can_read(FileDescription&) const
 {
     return true;
 }
 
-ssize_t ZeroDevice::read(FileDescriptor&, byte* buffer, ssize_t size)
+ssize_t ZeroDevice::read(FileDescription&, byte* buffer, ssize_t size)
 {
     ssize_t count = min(PAGE_SIZE, size);
     memset(buffer, 0, (size_t)count);
     return count;
 }
 
-ssize_t ZeroDevice::write(FileDescriptor&, const byte*, ssize_t size)
+ssize_t ZeroDevice::write(FileDescription&, const byte*, ssize_t size)
 {
     return min(PAGE_SIZE, size);
 }
diff --git a/Kernel/Devices/ZeroDevice.h b/Kernel/Devices/ZeroDevice.h
index 930f3adec2..631fdd8965 100644
--- a/Kernel/Devices/ZeroDevice.h
+++ b/Kernel/Devices/ZeroDevice.h
@@ -10,9 +10,9 @@ public:
 
 private:
     // ^CharacterDevice
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual bool can_write(FileDescriptor&) const override { return true; }
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual bool can_write(FileDescription&) const override { return true; }
     virtual const char* class_name() const override { return "ZeroDevice"; }
 };
diff --git a/Kernel/File.cpp b/Kernel/File.cpp
index ffc64bec9d..c0e4d37aea 100644
--- a/Kernel/File.cpp
+++ b/Kernel/File.cpp
@@ -1,5 +1,5 @@
 #include <Kernel/File.h>
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 
 File::File()
 {
@@ -9,22 +9,22 @@ File::~File()
 {
 }
 
-KResultOr<Retained<FileDescriptor>> File::open(int options)
+KResultOr<Retained<FileDescription>> File::open(int options)
 {
     UNUSED_PARAM(options);
-    return FileDescriptor::create(this);
+    return FileDescription::create(this);
 }
 
 void File::close()
 {
 }
 
-int File::ioctl(FileDescriptor&, unsigned, unsigned)
+int File::ioctl(FileDescription&, unsigned, unsigned)
 {
     return -ENOTTY;
 }
 
-KResultOr<Region*> File::mmap(Process&, FileDescriptor&, LinearAddress, size_t, size_t, int)
+KResultOr<Region*> File::mmap(Process&, FileDescription&, LinearAddress, size_t, size_t, int)
 {
     return KResult(-ENODEV);
 }
diff --git a/Kernel/File.h b/Kernel/File.h
index 8a74b3cde1..4211c40db5 100644
--- a/Kernel/File.h
+++ b/Kernel/File.h
@@ -8,11 +8,11 @@
 #include <Kernel/LinearAddress.h>
 #include <Kernel/UnixTypes.h>
 
-class FileDescriptor;
+class FileDescription;
 class Process;
 class Region;
 
-// File is the base class for anything that can be referenced by a FileDescriptor.
+// File is the base class for anything that can be referenced by a FileDescription.
 //
 // The most important functions in File are:
 //
@@ -43,18 +43,18 @@ class File : public Retainable<File> {
 public:
     virtual ~File();
 
-    virtual KResultOr<Retained<FileDescriptor>> open(int options);
+    virtual KResultOr<Retained<FileDescription>> open(int options);
     virtual void close();
 
-    virtual bool can_read(FileDescriptor&) const = 0;
-    virtual bool can_write(FileDescriptor&) const = 0;
+    virtual bool can_read(FileDescription&) const = 0;
+    virtual bool can_write(FileDescription&) const = 0;
 
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) = 0;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) = 0;
-    virtual int ioctl(FileDescriptor&, unsigned request, unsigned arg);
-    virtual KResultOr<Region*> mmap(Process&, FileDescriptor&, LinearAddress preferred_laddr, size_t offset, size_t size, int prot);
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) = 0;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) = 0;
+    virtual int ioctl(FileDescription&, unsigned request, unsigned arg);
+    virtual KResultOr<Region*> mmap(Process&, FileDescription&, LinearAddress preferred_laddr, size_t offset, size_t size, int prot);
 
-    virtual String absolute_path(const FileDescriptor&) const = 0;
+    virtual String absolute_path(const FileDescription&) const = 0;
 
     virtual KResult truncate(off_t) { return KResult(-EINVAL); }
 
diff --git a/Kernel/FileSystem/Ext2FileSystem.cpp b/Kernel/FileSystem/Ext2FileSystem.cpp
index f54606da35..a17fa9b2df 100644
--- a/Kernel/FileSystem/Ext2FileSystem.cpp
+++ b/Kernel/FileSystem/Ext2FileSystem.cpp
@@ -479,7 +479,7 @@ RetainPtr<Inode> Ext2FS::get_inode(InodeIdentifier inode) const
     return new_inode;
 }
 
-ssize_t Ext2FSInode::read_bytes(off_t offset, ssize_t count, byte* buffer, FileDescriptor*) const
+ssize_t Ext2FSInode::read_bytes(off_t offset, ssize_t count, byte* buffer, FileDescription*) const
 {
     Locker inode_locker(m_lock);
     ASSERT(offset >= 0);
@@ -585,7 +585,7 @@ bool Ext2FSInode::resize(qword new_size)
     return true;
 }
 
-ssize_t Ext2FSInode::write_bytes(off_t offset, ssize_t count, const byte* data, FileDescriptor*)
+ssize_t Ext2FSInode::write_bytes(off_t offset, ssize_t count, const byte* data, FileDescription*)
 {
     ASSERT(offset >= 0);
     ASSERT(count >= 0);
diff --git a/Kernel/FileSystem/Ext2FileSystem.h b/Kernel/FileSystem/Ext2FileSystem.h
index 1d8aa0ebc0..5ac452dbe4 100644
--- a/Kernel/FileSystem/Ext2FileSystem.h
+++ b/Kernel/FileSystem/Ext2FileSystem.h
@@ -25,12 +25,12 @@ public:
 
 private:
     // ^Inode
-    virtual ssize_t read_bytes(off_t, ssize_t, byte* buffer, FileDescriptor*) const override;
+    virtual ssize_t read_bytes(off_t, ssize_t, byte* buffer, FileDescription*) const override;
     virtual InodeMetadata metadata() const override;
     virtual bool traverse_as_directory(Function<bool(const FS::DirectoryEntry&)>) const override;
     virtual InodeIdentifier lookup(StringView name) override;
     virtual void flush_metadata() override;
-    virtual ssize_t write_bytes(off_t, ssize_t, const byte* data, FileDescriptor*) override;
+    virtual ssize_t write_bytes(off_t, ssize_t, const byte* data, FileDescription*) override;
     virtual KResult add_child(InodeIdentifier child_id, const String& name, mode_t) override;
     virtual KResult remove_child(const String& name) override;
     virtual int set_atime(time_t) override;
diff --git a/Kernel/FileSystem/FIFO.cpp b/Kernel/FileSystem/FIFO.cpp
index 344dcee87e..e14689e763 100644
--- a/Kernel/FileSystem/FIFO.cpp
+++ b/Kernel/FileSystem/FIFO.cpp
@@ -1,5 +1,5 @@
 #include <Kernel/FileSystem/FIFO.h>
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <Kernel/Lock.h>
 #include <Kernel/Process.h>
 #include <Kernel/Thread.h>
@@ -30,9 +30,9 @@ Retained<FIFO> FIFO::create(uid_t uid)
     return adopt(*new FIFO(uid));
 }
 
-Retained<FileDescriptor> FIFO::open_direction(FIFO::Direction direction)
+Retained<FileDescription> FIFO::open_direction(FIFO::Direction direction)
 {
-    auto descriptor = FileDescriptor::create(this);
+    auto descriptor = FileDescription::create(this);
     attach(direction);
     descriptor->set_fifo_direction({ }, direction);
     return descriptor;
@@ -83,17 +83,17 @@ void FIFO::detach(Direction direction)
     }
 }
 
-bool FIFO::can_read(FileDescriptor&) const
+bool FIFO::can_read(FileDescription&) const
 {
     return !m_buffer.is_empty() || !m_writers;
 }
 
-bool FIFO::can_write(FileDescriptor&) const
+bool FIFO::can_write(FileDescription&) const
 {
     return m_buffer.bytes_in_write_buffer() < 4096 || !m_readers;
 }
 
-ssize_t FIFO::read(FileDescriptor&, byte* buffer, ssize_t size)
+ssize_t FIFO::read(FileDescription&, byte* buffer, ssize_t size)
 {
     if (!m_writers && m_buffer.is_empty())
         return 0;
@@ -107,7 +107,7 @@ ssize_t FIFO::read(FileDescriptor&, byte* buffer, ssize_t size)
     return nread;
 }
 
-ssize_t FIFO::write(FileDescriptor&, const byte* buffer, ssize_t size)
+ssize_t FIFO::write(FileDescription&, const byte* buffer, ssize_t size)
 {
     if (!m_readers) {
         current->process().send_signal(SIGPIPE, &current->process());
@@ -119,7 +119,7 @@ ssize_t FIFO::write(FileDescriptor&, const byte* buffer, ssize_t size)
     return m_buffer.write(buffer, size);
 }
 
-String FIFO::absolute_path(const FileDescriptor&) const
+String FIFO::absolute_path(const FileDescription&) const
 {
     return String::format("fifo:%u", this);
 }
diff --git a/Kernel/FileSystem/FIFO.h b/Kernel/FileSystem/FIFO.h
index 50e1c88ea4..8cbb60513a 100644
--- a/Kernel/FileSystem/FIFO.h
+++ b/Kernel/FileSystem/FIFO.h
@@ -4,7 +4,7 @@
 #include <Kernel/File.h>
 #include <Kernel/UnixTypes.h>
 
-class FileDescriptor;
+class FileDescription;
 
 class FIFO final : public File {
 public:
@@ -22,18 +22,18 @@ public:
 
     uid_t uid() const { return m_uid; }
 
-    Retained<FileDescriptor> open_direction(Direction);
+    Retained<FileDescription> open_direction(Direction);
 
     void attach(Direction);
     void detach(Direction);
 
 private:
     // ^File
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual bool can_write(FileDescriptor&) const override;
-    virtual String absolute_path(const FileDescriptor&) const override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual bool can_write(FileDescription&) const override;
+    virtual String absolute_path(const FileDescription&) const override;
     virtual const char* class_name() const override { return "FIFO"; }
     virtual bool is_fifo() const override { return true; }
 
diff --git a/Kernel/FileSystem/FileDescriptor.cpp b/Kernel/FileSystem/FileDescription.cpp
index f760792757..d62e573d3b 100644
--- a/Kernel/FileSystem/FileDescriptor.cpp
+++ b/Kernel/FileSystem/FileDescription.cpp
@@ -3,7 +3,7 @@
 #include <Kernel/Devices/CharacterDevice.h>
 #include <Kernel/FileSystem/Custody.h>
 #include <Kernel/FileSystem/FIFO.h>
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <Kernel/FileSystem/FileSystem.h>
 #include <Kernel/FileSystem/InodeFile.h>
 #include <Kernel/Net/Socket.h>
@@ -15,19 +15,19 @@
 #include <Kernel/VM/MemoryManager.h>
 #include <LibC/errno_numbers.h>
 
-Retained<FileDescriptor> FileDescriptor::create(RetainPtr<Custody>&& custody)
+Retained<FileDescription> FileDescription::create(RetainPtr<Custody>&& custody)
 {
-    auto descriptor = adopt(*new FileDescriptor(InodeFile::create(custody->inode())));
+    auto descriptor = adopt(*new FileDescription(InodeFile::create(custody->inode())));
     descriptor->m_custody = move(custody);
     return descriptor;
 }
 
-Retained<FileDescriptor> FileDescriptor::create(RetainPtr<File>&& file, SocketRole role)
+Retained<FileDescription> FileDescription::create(RetainPtr<File>&& file, SocketRole role)
 {
-    return adopt(*new FileDescriptor(move(file), role));
+    return adopt(*new FileDescription(move(file), role));
 }
 
-FileDescriptor::FileDescriptor(RetainPtr<File>&& file, SocketRole role)
+FileDescription::FileDescription(RetainPtr<File>&& file, SocketRole role)
     : m_file(move(file))
 {
     if (m_file->is_inode())
@@ -35,7 +35,7 @@ FileDescriptor::FileDescriptor(RetainPtr<File>&& file, SocketRole role)
     set_socket_role(role);
 }
 
-FileDescriptor::~FileDescriptor()
+FileDescription::~FileDescription()
 {
     if (is_socket())
         socket()->detach(*this);
@@ -46,7 +46,7 @@ FileDescriptor::~FileDescriptor()
     m_inode = nullptr;
 }
 
-void FileDescriptor::set_socket_role(SocketRole role)
+void FileDescription::set_socket_role(SocketRole role)
 {
     if (role == m_socket_role)
         return;
@@ -58,13 +58,13 @@ void FileDescriptor::set_socket_role(SocketRole role)
     socket()->attach(*this);
 }
 
-Retained<FileDescriptor> FileDescriptor::clone()
+Retained<FileDescription> FileDescription::clone()
 {
-    RetainPtr<FileDescriptor> descriptor;
+    RetainPtr<FileDescription> descriptor;
     if (is_fifo()) {
         descriptor = fifo()->open_direction(m_fifo_direction);
     } else {
-        descriptor = FileDescriptor::create(m_file.copy_ref(), m_socket_role);
+        descriptor = FileDescription::create(m_file.copy_ref(), m_socket_role);
         descriptor->m_custody = m_custody.copy_ref();
         descriptor->m_inode = m_inode.copy_ref();
     }
@@ -76,7 +76,7 @@ Retained<FileDescriptor> FileDescriptor::clone()
     return *descriptor;
 }
 
-KResult FileDescriptor::fstat(stat& buffer)
+KResult FileDescription::fstat(stat& buffer)
 {
     ASSERT(!is_fifo());
     if (!m_inode)
@@ -84,14 +84,14 @@ KResult FileDescriptor::fstat(stat& buffer)
     return metadata().stat(buffer);
 }
 
-KResult FileDescriptor::fchmod(mode_t mode)
+KResult FileDescription::fchmod(mode_t mode)
 {
     if (!m_inode)
         return KResult(-EBADF);
     return VFS::the().chmod(*m_inode, mode);
 }
 
-off_t FileDescriptor::seek(off_t offset, int whence)
+off_t FileDescription::seek(off_t offset, int whence)
 {
     if (!m_file->is_seekable())
         return -EINVAL;
@@ -127,7 +127,7 @@ off_t FileDescriptor::seek(off_t offset, int whence)
     return m_current_offset;
 }
 
-ssize_t FileDescriptor::read(byte* buffer, ssize_t count)
+ssize_t FileDescription::read(byte* buffer, ssize_t count)
 {
     int nread = m_file->read(*this, buffer, count);
     if (m_file->is_seekable())
@@ -135,7 +135,7 @@ ssize_t FileDescriptor::read(byte* buffer, ssize_t count)
     return nread;
 }
 
-ssize_t FileDescriptor::write(const byte* data, ssize_t size)
+ssize_t FileDescription::write(const byte* data, ssize_t size)
 {
     int nwritten = m_file->write(*this, data, size);
     if (m_file->is_seekable())
@@ -143,17 +143,17 @@ ssize_t FileDescriptor::write(const byte* data, ssize_t size)
     return nwritten;
 }
 
-bool FileDescriptor::can_write()
+bool FileDescription::can_write()
 {
     return m_file->can_write(*this);
 }
 
-bool FileDescriptor::can_read()
+bool FileDescription::can_read()
 {
     return m_file->can_read(*this);
 }
 
-ByteBuffer FileDescriptor::read_entire_file()
+ByteBuffer FileDescription::read_entire_file()
 {
     // HACK ALERT: (This entire function)
     ASSERT(m_file->is_inode());
@@ -161,13 +161,13 @@ ByteBuffer FileDescriptor::read_entire_file()
     return m_inode->read_entire(this);
 }
 
-bool FileDescriptor::is_directory() const
+bool FileDescription::is_directory() const
 {
     ASSERT(!is_fifo());
     return metadata().is_directory();
 }
 
-ssize_t FileDescriptor::get_dir_entries(byte* buffer, ssize_t size)
+ssize_t FileDescription::get_dir_entries(byte* buffer, ssize_t size)
 {
     auto metadata = this->metadata();
     if (!metadata.is_valid())
@@ -195,137 +195,137 @@ ssize_t FileDescriptor::get_dir_entries(byte* buffer, ssize_t size)
     return stream.offset();
 }
 
-bool FileDescriptor::is_device() const
+bool FileDescription::is_device() const
 {
     return m_file->is_device();
 }
 
-bool FileDescriptor::is_tty() const
+bool FileDescription::is_tty() const
 {
     return m_file->is_tty();
 }
 
-const TTY* FileDescriptor::tty() const
+const TTY* FileDescription::tty() const
 {
     if (!is_tty())
         return nullptr;
     return static_cast<const TTY*>(m_file.ptr());
 }
 
-TTY* FileDescriptor::tty()
+TTY* FileDescription::tty()
 {
     if (!is_tty())
         return nullptr;
     return static_cast<TTY*>(m_file.ptr());
 }
 
-bool FileDescriptor::is_master_pty() const
+bool FileDescription::is_master_pty() const
 {
     return m_file->is_master_pty();
 }
 
-const MasterPTY* FileDescriptor::master_pty() const
+const MasterPTY* FileDescription::master_pty() const
 {
     if (!is_master_pty())
         return nullptr;
     return static_cast<const MasterPTY*>(m_file.ptr());
 }
 
-MasterPTY* FileDescriptor::master_pty()
+MasterPTY* FileDescription::master_pty()
 {
     if (!is_master_pty())
         return nullptr;
     return static_cast<MasterPTY*>(m_file.ptr());
 }
 
-int FileDescriptor::close()
+int FileDescription::close()
 {
     return 0;
 }
 
-String FileDescriptor::absolute_path() const
+String FileDescription::absolute_path() const
 {
     if (m_custody)
         return m_custody->absolute_path();
-    dbgprintf("FileDescriptor::absolute_path() for FD without custody, File type: %s\n", m_file->class_name());
+    dbgprintf("FileDescription::absolute_path() for FD without custody, File type: %s\n", m_file->class_name());
     return m_file->absolute_path(*this);
 }
 
-InodeMetadata FileDescriptor::metadata() const
+InodeMetadata FileDescription::metadata() const
 {
     if (m_inode)
         return m_inode->metadata();
     return { };
 }
 
-KResultOr<Region*> FileDescriptor::mmap(Process& process, LinearAddress laddr, size_t offset, size_t size, int prot)
+KResultOr<Region*> FileDescription::mmap(Process& process, LinearAddress laddr, size_t offset, size_t size, int prot)
 {
     return m_file->mmap(process, *this, laddr, offset, size, prot);
 }
 
-KResult FileDescriptor::truncate(off_t length)
+KResult FileDescription::truncate(off_t length)
 {
     return m_file->truncate(length);
 }
 
-bool FileDescriptor::is_shared_memory() const
+bool FileDescription::is_shared_memory() const
 {
     return m_file->is_shared_memory();
 }
 
-SharedMemory* FileDescriptor::shared_memory()
+SharedMemory* FileDescription::shared_memory()
 {
     if (!is_shared_memory())
         return nullptr;
     return static_cast<SharedMemory*>(m_file.ptr());
 }
 
-const SharedMemory* FileDescriptor::shared_memory() const
+const SharedMemory* FileDescription::shared_memory() const
 {
     if (!is_shared_memory())
         return nullptr;
     return static_cast<const SharedMemory*>(m_file.ptr());
 }
 
-bool FileDescriptor::is_fifo() const
+bool FileDescription::is_fifo() const
 {
     return m_file->is_fifo();
 }
 
-FIFO* FileDescriptor::fifo()
+FIFO* FileDescription::fifo()
 {
     if (!is_fifo())
         return nullptr;
     return static_cast<FIFO*>(m_file.ptr());
 }
 
-bool FileDescriptor::is_socket() const
+bool FileDescription::is_socket() const
 {
     return m_file->is_socket();
 }
 
-Socket* FileDescriptor::socket()
+Socket* FileDescription::socket()
 {
     if (!is_socket())
         return nullptr;
     return static_cast<Socket*>(m_file.ptr());
 }
 
-const Socket* FileDescriptor::socket() const
+const Socket* FileDescription::socket() const
 {
     if (!is_socket())
         return nullptr;
     return static_cast<const Socket*>(m_file.ptr());
 }
 
-void FileDescriptor::set_file_flags(dword flags)
+void FileDescription::set_file_flags(dword flags)
 {
     m_is_blocking = !(flags & O_NONBLOCK);
     m_should_append = flags & O_APPEND;
     m_file_flags = flags;
 }
 
-KResult FileDescriptor::chown(uid_t uid, gid_t gid)
+KResult FileDescription::chown(uid_t uid, gid_t gid)
 {
     if (!m_inode)
         return KResult(-EINVAL);
diff --git a/Kernel/FileSystem/FileDescriptor.h b/Kernel/FileSystem/FileDescription.h
index 7d8cdf8d7d..7c1d1ef4bb 100644
--- a/Kernel/FileSystem/FileDescriptor.h
+++ b/Kernel/FileSystem/FileDescription.h
@@ -19,13 +19,13 @@ class Region;
 class CharacterDevice;
 class SharedMemory;
 
-class FileDescriptor : public Retainable<FileDescriptor> {
+class FileDescription : public Retainable<FileDescription> {
 public:
-    static Retained<FileDescriptor> create(RetainPtr<Custody>&&);
-    static Retained<FileDescriptor> create(RetainPtr<File>&&, SocketRole = SocketRole::None);
-    ~FileDescriptor();
+    static Retained<FileDescription> create(RetainPtr<Custody>&&);
+    static Retained<FileDescription> create(RetainPtr<File>&&, SocketRole = SocketRole::None);
+    ~FileDescription();
 
-    Retained<FileDescriptor> clone();
+    Retained<FileDescription> clone();
 
     int close();
 
@@ -105,8 +105,8 @@ public:
 
 private:
     friend class VFS;
-    FileDescriptor(RetainPtr<File>&&, SocketRole = SocketRole::None);
-    FileDescriptor(FIFO&, FIFO::Direction);
+    FileDescription(RetainPtr<File>&&, SocketRole = SocketRole::None);
+    FileDescription(FIFO&, FIFO::Direction);
 
     RetainPtr<Custody> m_custody;
     RetainPtr<Inode> m_inode;
diff --git a/Kernel/FileSystem/FileSystem.h b/Kernel/FileSystem/FileSystem.h
index 097d479b00..81d953c832 100644
--- a/Kernel/FileSystem/FileSystem.h
+++ b/Kernel/FileSystem/FileSystem.h
@@ -19,7 +19,7 @@
 static const dword mepoch = 476763780;
 
 class Inode;
-class FileDescriptor;
+class FileDescription;
 class LocalSocket;
 class VMObject;
 
diff --git a/Kernel/FileSystem/Inode.cpp b/Kernel/FileSystem/Inode.cpp
index 38eb0395d1..2be2ec2ea6 100644
--- a/Kernel/FileSystem/Inode.cpp
+++ b/Kernel/FileSystem/Inode.cpp
@@ -28,7 +28,7 @@ void Inode::sync()
     }
 }
 
-ByteBuffer Inode::read_entire(FileDescriptor* descriptor) const
+ByteBuffer Inode::read_entire(FileDescription* descriptor) const
 {
     size_t initial_size = metadata().size ? metadata().size : 4096;
     StringBuilder builder(initial_size);
diff --git a/Kernel/FileSystem/Inode.h b/Kernel/FileSystem/Inode.h
index 8010597ccb..44f3b3666a 100644
--- a/Kernel/FileSystem/Inode.h
+++ b/Kernel/FileSystem/Inode.h
@@ -10,7 +10,7 @@
 #include <Kernel/KResult.h>
 #include <Kernel/Lock.h>
 
-class FileDescriptor;
+class FileDescription;
 class LocalSocket;
 class VMObject;
 
@@ -37,12 +37,12 @@ public:
     InodeIdentifier identifier() const { return { fsid(), index() }; }
     virtual InodeMetadata metadata() const = 0;
 
-    ByteBuffer read_entire(FileDescriptor* = nullptr) const;
+    ByteBuffer read_entire(FileDescription* = nullptr) const;
 
-    virtual ssize_t read_bytes(off_t, ssize_t, byte* buffer, FileDescriptor*) const = 0;
+    virtual ssize_t read_bytes(off_t, ssize_t, byte* buffer, FileDescription*) const = 0;
     virtual bool traverse_as_directory(Function<bool(const FS::DirectoryEntry&)>) const = 0;
     virtual InodeIdentifier lookup(StringView name) = 0;
-    virtual ssize_t write_bytes(off_t, ssize_t, const byte* data, FileDescriptor*) = 0;
+    virtual ssize_t write_bytes(off_t, ssize_t, const byte* data, FileDescription*) = 0;
     virtual KResult add_child(InodeIdentifier child_id, const String& name, mode_t) = 0;
     virtual KResult remove_child(const String& name) = 0;
     virtual size_t directory_entry_count() const = 0;
diff --git a/Kernel/FileSystem/InodeFile.cpp b/Kernel/FileSystem/InodeFile.cpp
index f30fb655f1..577dec1a21 100644
--- a/Kernel/FileSystem/InodeFile.cpp
+++ b/Kernel/FileSystem/InodeFile.cpp
@@ -1,6 +1,6 @@
 #include <Kernel/FileSystem/InodeFile.h>
 #include <Kernel/FileSystem/Inode.h>
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <Kernel/FileSystem/VirtualFileSystem.h>
 #include <Kernel/Process.h>
 
@@ -13,17 +13,17 @@ InodeFile::~InodeFile()
 {
 }
 
-ssize_t InodeFile::read(FileDescriptor& descriptor, byte* buffer, ssize_t count)
+ssize_t InodeFile::read(FileDescription& descriptor, byte* buffer, ssize_t count)
 {
     return m_inode->read_bytes(descriptor.offset(), count, buffer, &descriptor);
 }
 
-ssize_t InodeFile::write(FileDescriptor& descriptor, const byte* data, ssize_t count)
+ssize_t InodeFile::write(FileDescription& descriptor, const byte* data, ssize_t count)
 {
     return m_inode->write_bytes(descriptor.offset(), count, data, &descriptor);
 }
 
-KResultOr<Region*> InodeFile::mmap(Process& process, FileDescriptor& descriptor, LinearAddress preferred_laddr, size_t offset, size_t size, int prot)
+KResultOr<Region*> InodeFile::mmap(Process& process, FileDescription& descriptor, LinearAddress preferred_laddr, size_t offset, size_t size, int prot)
 {
     ASSERT(offset == 0);
     // FIXME: If PROT_EXEC, check that the underlying file system isn't mounted noexec.
@@ -34,7 +34,7 @@ KResultOr<Region*> InodeFile::mmap(Process& process, FileDescriptor& descriptor,
     return region;
 }
 
-String InodeFile::absolute_path(const FileDescriptor& descriptor) const
+String InodeFile::absolute_path(const FileDescription& descriptor) const
 {
     ASSERT_NOT_REACHED();
     ASSERT(descriptor.custody());
diff --git a/Kernel/FileSystem/InodeFile.h b/Kernel/FileSystem/InodeFile.h
index 5522822d1e..cae2818697 100644
--- a/Kernel/FileSystem/InodeFile.h
+++ b/Kernel/FileSystem/InodeFile.h
@@ -16,14 +16,14 @@ public:
     const Inode& inode() const { return *m_inode; }
     Inode& inode() { return *m_inode; }
 
-    virtual bool can_read(FileDescriptor&) const override { return true; }
-    virtual bool can_write(FileDescriptor&) const override { return true; }
+    virtual bool can_read(FileDescription&) const override { return true; }
+    virtual bool can_write(FileDescription&) const override { return true; }
 
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual KResultOr<Region*> mmap(Process&, FileDescriptor&, LinearAddress preferred_laddr, size_t offset, size_t size, int prot) override;
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual KResultOr<Region*> mmap(Process&, FileDescription&, LinearAddress preferred_laddr, size_t offset, size_t size, int prot) override;
 
-    virtual String absolute_path(const FileDescriptor&) const override;
+    virtual String absolute_path(const FileDescription&) const override;
 
     virtual KResult truncate(off_t) override;
 
diff --git a/Kernel/FileSystem/ProcFS.cpp b/Kernel/FileSystem/ProcFS.cpp
index b09b89e163..73aeb43743 100644
--- a/Kernel/FileSystem/ProcFS.cpp
+++ b/Kernel/FileSystem/ProcFS.cpp
@@ -1,7 +1,7 @@
 #include "ProcFS.h"
 #include "Process.h"
 #include <Kernel/FileSystem/Custody.h>
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <Kernel/FileSystem/VirtualFileSystem.h>
 #include <Kernel/VM/MemoryManager.h>
 #include "StdLib.h"
@@ -189,7 +189,7 @@ ByteBuffer procfs$pid_fds(InodeIdentifier identifier)
         return { };
     StringBuilder builder;
     for (int i = 0; i < process.max_open_file_descriptors(); ++i) {
-        auto* descriptor = process.file_descriptor(i);
+        auto* descriptor = process.file_description(i);
         if (!descriptor)
             continue;
         builder.appendf("% 3u %s\n", i, descriptor->absolute_path().characters());
@@ -204,7 +204,7 @@ ByteBuffer procfs$pid_fd_entry(InodeIdentifier identifier)
         return { };
     auto& process = handle->process();
     int fd = to_fd(identifier);
-    auto* descriptor = process.file_descriptor(fd);
+    auto* descriptor = process.file_description(fd);
     if (!descriptor)
         return { };
     return descriptor->absolute_path().to_byte_buffer();
@@ -835,7 +835,7 @@ InodeMetadata ProcFSInode::metadata() const
     return metadata;
 }
 
-ssize_t ProcFSInode::read_bytes(off_t offset, ssize_t count, byte* buffer, FileDescriptor* descriptor) const
+ssize_t ProcFSInode::read_bytes(off_t offset, ssize_t count, byte* buffer, FileDescription* descriptor) const
 {
 #ifdef PROCFS_DEBUG
     dbgprintf("ProcFS: read_bytes %u\n", index());
@@ -941,7 +941,7 @@ bool ProcFSInode::traverse_as_directory(Function<bool(const FS::DirectoryEntry&)
             return false;
         auto& process = handle->process();
         for (int i = 0; i < process.max_open_file_descriptors(); ++i) {
-            auto* descriptor = process.file_descriptor(i);
+            auto* descriptor = process.file_description(i);
             if (!descriptor)
                 continue;
             char name[16];
@@ -1027,7 +1027,7 @@ InodeIdentifier ProcFSInode::lookup(StringView name)
             {
                 InterruptDisabler disabler;
                 if (auto* process = Process::from_pid(to_pid(identifier())))
-                    fd_exists = process->file_descriptor(name_as_number);
+                    fd_exists = process->file_description(name_as_number);
 
             }
             if (fd_exists)
@@ -1041,7 +1041,7 @@ void ProcFSInode::flush_metadata()
 {
 }
 
-ssize_t ProcFSInode::write_bytes(off_t offset, ssize_t size, const byte* buffer, FileDescriptor*)
+ssize_t ProcFSInode::write_bytes(off_t offset, ssize_t size, const byte* buffer, FileDescription*)
 {
     auto* directory_entry = fs().get_directory_entry(identifier());
     if (!directory_entry || !directory_entry->write_callback)
diff --git a/Kernel/FileSystem/ProcFS.h b/Kernel/FileSystem/ProcFS.h
index 1ba73615d6..bb4e18eb80 100644
--- a/Kernel/FileSystem/ProcFS.h
+++ b/Kernel/FileSystem/ProcFS.h
@@ -80,12 +80,12 @@ public:
 
 private:
     // ^Inode
-    virtual ssize_t read_bytes(off_t, ssize_t, byte* buffer, FileDescriptor*) const override;
+    virtual ssize_t read_bytes(off_t, ssize_t, byte* buffer, FileDescription*) const override;
     virtual InodeMetadata metadata() const override;
     virtual bool traverse_as_directory(Function<bool(const FS::DirectoryEntry&)>) const override;
     virtual InodeIdentifier lookup(StringView name) override;
     virtual void flush_metadata() override;
-    virtual ssize_t write_bytes(off_t, ssize_t, const byte* buffer, FileDescriptor*) override;
+    virtual ssize_t write_bytes(off_t, ssize_t, const byte* buffer, FileDescription*) override;
     virtual KResult add_child(InodeIdentifier child_id, const String& name, mode_t) override;
     virtual KResult remove_child(const String& name) override;
     virtual size_t directory_entry_count() const override;
diff --git a/Kernel/FileSystem/SyntheticFileSystem.cpp b/Kernel/FileSystem/SyntheticFileSystem.cpp
index 9dc2711319..86e2aed130 100644
--- a/Kernel/FileSystem/SyntheticFileSystem.cpp
+++ b/Kernel/FileSystem/SyntheticFileSystem.cpp
@@ -1,5 +1,5 @@
 #include <Kernel/FileSystem/SyntheticFileSystem.h>
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <LibC/errno_numbers.h>
 #include <AK/StdLibExtras.h>
 
@@ -185,7 +185,7 @@ InodeMetadata SynthFSInode::metadata() const
     return m_metadata;
 }
 
-ssize_t SynthFSInode::read_bytes(off_t offset, ssize_t count, byte* buffer, FileDescriptor* descriptor) const
+ssize_t SynthFSInode::read_bytes(off_t offset, ssize_t count, byte* buffer, FileDescription* descriptor) const
 {
     LOCKER(m_lock);
 #ifdef SYNTHFS_DEBUG
@@ -250,7 +250,7 @@ void SynthFSInode::flush_metadata()
 {
 }
 
-ssize_t SynthFSInode::write_bytes(off_t offset, ssize_t size, const byte* buffer, FileDescriptor*)
+ssize_t SynthFSInode::write_bytes(off_t offset, ssize_t size, const byte* buffer, FileDescription*)
 {
     LOCKER(m_lock);
     if (!m_write_callback)
diff --git a/Kernel/FileSystem/SyntheticFileSystem.h b/Kernel/FileSystem/SyntheticFileSystem.h
index c5bb164363..df989d53f1 100644
--- a/Kernel/FileSystem/SyntheticFileSystem.h
+++ b/Kernel/FileSystem/SyntheticFileSystem.h
@@ -57,12 +57,12 @@ public:
 
 private:
     // ^Inode
-    virtual ssize_t read_bytes(off_t, ssize_t, byte* buffer, FileDescriptor*) const override;
+    virtual ssize_t read_bytes(off_t, ssize_t, byte* buffer, FileDescription*) const override;
     virtual InodeMetadata metadata() const override;
     virtual bool traverse_as_directory(Function<bool(const FS::DirectoryEntry&)>) const override;
     virtual InodeIdentifier lookup(StringView name) override;
     virtual void flush_metadata() override;
-    virtual ssize_t write_bytes(off_t, ssize_t, const byte* buffer, FileDescriptor*) override;
+    virtual ssize_t write_bytes(off_t, ssize_t, const byte* buffer, FileDescription*) override;
     virtual KResult add_child(InodeIdentifier child_id, const String& name, mode_t) override;
     virtual KResult remove_child(const String& name) override;
     virtual size_t directory_entry_count() const override;
diff --git a/Kernel/FileSystem/VirtualFileSystem.cpp b/Kernel/FileSystem/VirtualFileSystem.cpp
index e4ba6cafd4..7ae678e6d1 100644
--- a/Kernel/FileSystem/VirtualFileSystem.cpp
+++ b/Kernel/FileSystem/VirtualFileSystem.cpp
@@ -1,5 +1,5 @@
 #include "VirtualFileSystem.h"
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include "FileSystem.h"
 #include <AK/FileSystemPath.h>
 #include <AK/StringBuilder.h>
@@ -149,7 +149,7 @@ KResult VFS::stat(StringView path, int options, Custody& base, struct stat& stat
     return custody_or_error.value()->inode().metadata().stat(statbuf);
 }
 
-KResultOr<Retained<FileDescriptor>> VFS::open(StringView path, int options, mode_t mode, Custody& base)
+KResultOr<Retained<FileDescription>> VFS::open(StringView path, int options, mode_t mode, Custody& base)
 {
     auto custody_or_error = resolve_path(path, base, nullptr, options);
     if (options & O_CREAT) {
@@ -194,7 +194,7 @@ KResultOr<Retained<FileDescriptor>> VFS::open(StringView path, int options, mode
     }
     if (should_truncate_file)
         inode.truncate(0);
-    return FileDescriptor::create(custody);
+    return FileDescription::create(custody);
 }
 
 KResult VFS::mknod(StringView path, mode_t mode, dev_t dev, Custody& base)
@@ -224,7 +224,7 @@ KResult VFS::mknod(StringView path, mode_t mode, dev_t dev, Custody& base)
     return KSuccess;
 }
 
-KResultOr<Retained<FileDescriptor>> VFS::create(StringView path, int options, mode_t mode, Custody& base)
+KResultOr<Retained<FileDescription>> VFS::create(StringView path, int options, mode_t mode, Custody& base)
 {
     (void)options;
 
@@ -253,7 +253,7 @@ KResultOr<Retained<FileDescriptor>> VFS::create(StringView path, int options, mo
         return KResult(error);
 
     auto new_custody = Custody::create(parent_custody, p.basename(), *new_file);
-    return FileDescriptor::create(*new_custody);
+    return FileDescription::create(*new_custody);
 }
 
 KResult VFS::mkdir(StringView path, mode_t mode, Custody& base)
diff --git a/Kernel/FileSystem/VirtualFileSystem.h b/Kernel/FileSystem/VirtualFileSystem.h
index 4edbb3c0bd..a6ff04c2af 100644
--- a/Kernel/FileSystem/VirtualFileSystem.h
+++ b/Kernel/FileSystem/VirtualFileSystem.h
@@ -28,7 +28,7 @@
 
 class Custody;
 class Device;
-class FileDescriptor;
+class FileDescription;
 
 class VFS {
     AK_MAKE_ETERNAL
@@ -59,9 +59,9 @@ public:
     bool mount_root(Retained<FS>&&);
     bool mount(Retained<FS>&&, StringView path);
 
-    KResultOr<Retained<FileDescriptor>> open(RetainPtr<Device>&&, int options);
-    KResultOr<Retained<FileDescriptor>> open(StringView path, int options, mode_t mode, Custody& base);
-    KResultOr<Retained<FileDescriptor>> create(StringView path, int options, mode_t mode, Custody& base);
+    KResultOr<Retained<FileDescription>> open(RetainPtr<Device>&&, int options);
+    KResultOr<Retained<FileDescription>> open(StringView path, int options, mode_t mode, Custody& base);
+    KResultOr<Retained<FileDescription>> create(StringView path, int options, mode_t mode, Custody& base);
     KResult mkdir(StringView path, mode_t mode, Custody& base);
     KResult link(StringView old_path, StringView new_path, Custody& base);
     KResult unlink(StringView path, Custody& base);
@@ -94,7 +94,7 @@ public:
     KResultOr<Retained<Custody>> resolve_path(StringView path, Custody& base, RetainPtr<Custody>* parent = nullptr, int options = 0);
 
 private:
-    friend class FileDescriptor;
+    friend class FileDescription;
 
     RetainPtr<Inode> get_inode(InodeIdentifier);
 
diff --git a/Kernel/KSyms.cpp b/Kernel/KSyms.cpp
index 6ee0a3ac23..73816e0d20 100644
--- a/Kernel/KSyms.cpp
+++ b/Kernel/KSyms.cpp
@@ -1,7 +1,7 @@
 #include "KSyms.h"
 #include "Process.h"
 #include "Scheduler.h"
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <AK/ELF/ELFLoader.h>
 #include <AK/TemporaryChange.h>
 
diff --git a/Kernel/Makefile b/Kernel/Makefile
index 3479d8eed2..8356f9526a 100644
--- a/Kernel/Makefile
+++ b/Kernel/Makefile
@@ -72,7 +72,7 @@ VFS_OBJS = \
     FileSystem/DiskBackedFileSystem.o \
     FileSystem/Ext2FileSystem.o \
     FileSystem/VirtualFileSystem.o \
-    FileSystem/FileDescriptor.o \
+    FileSystem/FileDescription.o \
     FileSystem/SyntheticFileSystem.o
 
 AK_OBJS = \
diff --git a/Kernel/Net/IPv4Socket.cpp b/Kernel/Net/IPv4Socket.cpp
index 681674ba61..b09e320409 100644
--- a/Kernel/Net/IPv4Socket.cpp
+++ b/Kernel/Net/IPv4Socket.cpp
@@ -11,7 +11,7 @@
 #include <Kernel/Net/ARP.h>
 #include <Kernel/Net/Routing.h>
 #include <LibC/errno_numbers.h>
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 
 #define IPV4_SOCKET_DEBUG
 
@@ -89,7 +89,7 @@ KResult IPv4Socket::bind(const sockaddr* address, socklen_t address_size)
     return protocol_bind();
 }
 
-KResult IPv4Socket::connect(FileDescriptor& descriptor, const sockaddr* address, socklen_t address_size, ShouldBlock should_block)
+KResult IPv4Socket::connect(FileDescription& descriptor, const sockaddr* address, socklen_t address_size, ShouldBlock should_block)
 {
     ASSERT(!m_bound);
     if (address_size != sizeof(sockaddr_in))
@@ -104,17 +104,17 @@ KResult IPv4Socket::connect(FileDescriptor& descriptor, const sockaddr* address,
     return protocol_connect(descriptor, should_block);
 }
 
-void IPv4Socket::attach(FileDescriptor&)
+void IPv4Socket::attach(FileDescription&)
 {
     ++m_attached_fds;
 }
 
-void IPv4Socket::detach(FileDescriptor&)
+void IPv4Socket::detach(FileDescription&)
 {
     --m_attached_fds;
 }
 
-bool IPv4Socket::can_read(FileDescriptor& descriptor) const
+bool IPv4Socket::can_read(FileDescription& descriptor) const
 {
     if (descriptor.socket_role() == SocketRole::Listener)
         return can_accept();
@@ -123,17 +123,17 @@ bool IPv4Socket::can_read(FileDescriptor& descriptor) const
     return m_can_read;
 }
 
-ssize_t IPv4Socket::read(FileDescriptor& descriptor, byte* buffer, ssize_t size)
+ssize_t IPv4Socket::read(FileDescription& descriptor, byte* buffer, ssize_t size)
 {
     return recvfrom(descriptor, buffer, size, 0, nullptr, 0);
 }
 
-ssize_t IPv4Socket::write(FileDescriptor& descriptor, const byte* data, ssize_t size)
+ssize_t IPv4Socket::write(FileDescription& descriptor, const byte* data, ssize_t size)
 {
     return sendto(descriptor, data, size, 0, nullptr, 0);
 }
 
-bool IPv4Socket::can_write(FileDescriptor&) const
+bool IPv4Socket::can_write(FileDescription&) const
 {
     return is_connected();
 }
@@ -149,7 +149,7 @@ int IPv4Socket::allocate_local_port_if_needed()
     return port;
 }
 
-ssize_t IPv4Socket::sendto(FileDescriptor&, const void* data, size_t data_length, int flags, const sockaddr* addr, socklen_t addr_length)
+ssize_t IPv4Socket::sendto(FileDescription&, const void* data, size_t data_length, int flags, const sockaddr* addr, socklen_t addr_length)
 {
     (void)flags;
     if (addr && addr_length != sizeof(sockaddr_in))
@@ -184,7 +184,7 @@ ssize_t IPv4Socket::sendto(FileDescriptor&, const void* data, size_t data_length
     return protocol_send(data, data_length);
 }
 
-ssize_t IPv4Socket::recvfrom(FileDescriptor& descriptor, void* buffer, size_t buffer_length, int flags, sockaddr* addr, socklen_t* addr_length)
+ssize_t IPv4Socket::recvfrom(FileDescription& descriptor, void* buffer, size_t buffer_length, int flags, sockaddr* addr, socklen_t* addr_length)
 {
     (void)flags;
     if (addr_length && *addr_length < sizeof(sockaddr_in))
diff --git a/Kernel/Net/IPv4Socket.h b/Kernel/Net/IPv4Socket.h
index 4f18d63113..dea6b5c171 100644
--- a/Kernel/Net/IPv4Socket.h
+++ b/Kernel/Net/IPv4Socket.h
@@ -21,17 +21,17 @@ public:
     static Lockable<HashTable<IPv4Socket*>>& all_sockets();
 
     virtual KResult bind(const sockaddr*, socklen_t) override;
-    virtual KResult connect(FileDescriptor&, const sockaddr*, socklen_t, ShouldBlock = ShouldBlock::Yes) override;
+    virtual KResult connect(FileDescription&, const sockaddr*, socklen_t, ShouldBlock = ShouldBlock::Yes) override;
     virtual bool get_local_address(sockaddr*, socklen_t*) override;
     virtual bool get_peer_address(sockaddr*, socklen_t*) override;
-    virtual void attach(FileDescriptor&) override;
-    virtual void detach(FileDescriptor&) override;
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual bool can_write(FileDescriptor&) const override;
-    virtual ssize_t sendto(FileDescriptor&, const void*, size_t, int, const sockaddr*, socklen_t) override;
-    virtual ssize_t recvfrom(FileDescriptor&, void*, size_t, int flags, sockaddr*, socklen_t*) override;
+    virtual void attach(FileDescription&) override;
+    virtual void detach(FileDescription&) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual bool can_write(FileDescription&) const override;
+    virtual ssize_t sendto(FileDescription&, const void*, size_t, int, const sockaddr*, socklen_t) override;
+    virtual ssize_t recvfrom(FileDescription&, void*, size_t, int flags, sockaddr*, socklen_t*) override;
 
     void did_receive(const IPv4Address& peer_address, word peer_port, ByteBuffer&&);
 
@@ -52,7 +52,7 @@ protected:
     virtual KResult protocol_bind() { return KSuccess; }
     virtual int protocol_receive(const ByteBuffer&, void*, size_t, int, sockaddr*, socklen_t*) { return -ENOTIMPL; }
     virtual int protocol_send(const void*, int) { return -ENOTIMPL; }
-    virtual KResult protocol_connect(FileDescriptor&, ShouldBlock) { return KSuccess; }
+    virtual KResult protocol_connect(FileDescription&, ShouldBlock) { return KSuccess; }
     virtual int protocol_allocate_local_port() { return 0; }
     virtual bool protocol_is_disconnected() const { return false; }
 
diff --git a/Kernel/Net/LocalSocket.cpp b/Kernel/Net/LocalSocket.cpp
index 99457e2cc4..208348847a 100644
--- a/Kernel/Net/LocalSocket.cpp
+++ b/Kernel/Net/LocalSocket.cpp
@@ -1,7 +1,7 @@
 #include <Kernel/Net/LocalSocket.h>
 #include <Kernel/UnixTypes.h>
 #include <Kernel/Process.h>
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <Kernel/FileSystem/VirtualFileSystem.h>
 #include <LibC/errno_numbers.h>
 
@@ -71,7 +71,7 @@ KResult LocalSocket::bind(const sockaddr* address, socklen_t address_size)
     return KSuccess;
 }
 
-KResult LocalSocket::connect(FileDescriptor& descriptor, const sockaddr* address, socklen_t address_size, ShouldBlock)
+KResult LocalSocket::connect(FileDescription& descriptor, const sockaddr* address, socklen_t address_size, ShouldBlock)
 {
     ASSERT(!m_bound);
     if (address_size != sizeof(sockaddr_un))
@@ -106,7 +106,7 @@ KResult LocalSocket::connect(FileDescriptor& descriptor, const sockaddr* address
     return current->wait_for_connect(descriptor);
 }
 
-void LocalSocket::attach(FileDescriptor& descriptor)
+void LocalSocket::attach(FileDescription& descriptor)
 {
     switch (descriptor.socket_role()) {
     case SocketRole::Accepted:
@@ -123,7 +123,7 @@ void LocalSocket::attach(FileDescriptor& descriptor)
     }
 }
 
-void LocalSocket::detach(FileDescriptor& descriptor)
+void LocalSocket::detach(FileDescription& descriptor)
 {
     switch (descriptor.socket_role()) {
     case SocketRole::Accepted:
@@ -143,7 +143,7 @@ void LocalSocket::detach(FileDescriptor& descriptor)
     }
 }
 
-bool LocalSocket::can_read(FileDescriptor& descriptor) const
+bool LocalSocket::can_read(FileDescription& descriptor) const
 {
     auto role = descriptor.socket_role();
     if (role == SocketRole::Listener)
@@ -155,7 +155,7 @@ bool LocalSocket::can_read(FileDescriptor& descriptor) const
     ASSERT_NOT_REACHED();
 }
 
-ssize_t LocalSocket::read(FileDescriptor& descriptor, byte* buffer, ssize_t size)
+ssize_t LocalSocket::read(FileDescription& descriptor, byte* buffer, ssize_t size)
 {
     auto role = descriptor.socket_role();
     if (role == SocketRole::Accepted) {
@@ -175,7 +175,7 @@ ssize_t LocalSocket::read(FileDescriptor& descriptor, byte* buffer, ssize_t size
     ASSERT_NOT_REACHED();
 }
 
-bool LocalSocket::has_attached_peer(const FileDescriptor& descriptor) const
+bool LocalSocket::has_attached_peer(const FileDescription& descriptor) const
 {
     if (descriptor.socket_role() == SocketRole::Accepted)
         return m_connected_fds_open || m_connecting_fds_open;
@@ -184,7 +184,7 @@ bool LocalSocket::has_attached_peer(const FileDescriptor& descriptor) const
     ASSERT_NOT_REACHED();
 }
 
-ssize_t LocalSocket::write(FileDescriptor& descriptor, const byte* data, ssize_t size)
+ssize_t LocalSocket::write(FileDescription& descriptor, const byte* data, ssize_t size)
 {
     if (!has_attached_peer(descriptor))
         return -EPIPE;
@@ -195,7 +195,7 @@ ssize_t LocalSocket::write(FileDescriptor& descriptor, const byte* data, ssize_t
     ASSERT_NOT_REACHED();
 }
 
-bool LocalSocket::can_write(FileDescriptor& descriptor) const
+bool LocalSocket::can_write(FileDescription& descriptor) const
 {
     if (descriptor.socket_role() == SocketRole::Accepted)
         return !has_attached_peer(descriptor) || m_for_client.bytes_in_write_buffer() < 16384;
@@ -204,12 +204,12 @@ bool LocalSocket::can_write(FileDescriptor& descriptor) const
     ASSERT_NOT_REACHED();
 }
 
-ssize_t LocalSocket::sendto(FileDescriptor& descriptor, const void* data, size_t data_size, int, const sockaddr*, socklen_t)
+ssize_t LocalSocket::sendto(FileDescription& descriptor, const void* data, size_t data_size, int, const sockaddr*, socklen_t)
 {
     return write(descriptor, (const byte*)data, data_size);
 }
 
-ssize_t LocalSocket::recvfrom(FileDescriptor& descriptor, void* buffer, size_t buffer_size, int, sockaddr*, socklen_t*)
+ssize_t LocalSocket::recvfrom(FileDescription& descriptor, void* buffer, size_t buffer_size, int, sockaddr*, socklen_t*)
 {
     return read(descriptor, (byte*)buffer, buffer_size);
 }
diff --git a/Kernel/Net/LocalSocket.h b/Kernel/Net/LocalSocket.h
index 3328fd4eba..f1ac23719b 100644
--- a/Kernel/Net/LocalSocket.h
+++ b/Kernel/Net/LocalSocket.h
@@ -3,7 +3,7 @@
 #include <Kernel/DoubleBuffer.h>
 #include <Kernel/Net/Socket.h>
 
-class FileDescriptor;
+class FileDescription;
 
 class LocalSocket final : public Socket {
 public:
@@ -11,24 +11,24 @@ public:
     virtual ~LocalSocket() override;
 
     virtual KResult bind(const sockaddr*, socklen_t) override;
-    virtual KResult connect(FileDescriptor&, const sockaddr*, socklen_t, ShouldBlock = ShouldBlock::Yes) override;
+    virtual KResult connect(FileDescription&, const sockaddr*, socklen_t, ShouldBlock = ShouldBlock::Yes) override;
     virtual bool get_local_address(sockaddr*, socklen_t*) override;
     virtual bool get_peer_address(sockaddr*, socklen_t*) override;
-    virtual void attach(FileDescriptor&) override;
-    virtual void detach(FileDescriptor&) override;
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual bool can_write(FileDescriptor&) const override;
-    virtual ssize_t sendto(FileDescriptor&, const void*, size_t, int, const sockaddr*, socklen_t) override;
-    virtual ssize_t recvfrom(FileDescriptor&, void*, size_t, int flags, sockaddr*, socklen_t*) override;
+    virtual void attach(FileDescription&) override;
+    virtual void detach(FileDescription&) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual bool can_write(FileDescription&) const override;
+    virtual ssize_t sendto(FileDescription&, const void*, size_t, int, const sockaddr*, socklen_t) override;
+    virtual ssize_t recvfrom(FileDescription&, void*, size_t, int flags, sockaddr*, socklen_t*) override;
 
 private:
     explicit LocalSocket(int type);
     virtual bool is_local() const override { return true; }
-    bool has_attached_peer(const FileDescriptor&) const;
+    bool has_attached_peer(const FileDescription&) const;
 
-    RetainPtr<FileDescriptor> m_file;
+    RetainPtr<FileDescription> m_file;
 
     bool m_bound { false };
     int m_accepted_fds_open { 0 };
diff --git a/Kernel/Net/Socket.cpp b/Kernel/Net/Socket.cpp
index 8c800f8eba..ee4a78c473 100644
--- a/Kernel/Net/Socket.cpp
+++ b/Kernel/Net/Socket.cpp
@@ -1,4 +1,4 @@
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <Kernel/Net/Socket.h>
 #include <Kernel/Net/LocalSocket.h>
 #include <Kernel/Net/IPv4Socket.h>
@@ -142,7 +142,7 @@ static const char* to_string(SocketRole role)
     }
 }
 
-String Socket::absolute_path(const FileDescriptor& descriptor) const
+String Socket::absolute_path(const FileDescription& descriptor) const
 {
     return String::format("socket:%x (role: %s)", this, to_string(descriptor.socket_role()));
 }
diff --git a/Kernel/Net/Socket.h b/Kernel/Net/Socket.h
index f11f3e768b..336dc8623b 100644
--- a/Kernel/Net/Socket.h
+++ b/Kernel/Net/Socket.h
@@ -23,7 +23,7 @@ enum class ShouldBlock
     Yes = 1
 };
 
-class FileDescriptor;
+class FileDescription;
 
 class Socket : public File {
 public:
@@ -40,15 +40,15 @@ public:
     KResult listen(int backlog);
 
     virtual KResult bind(const sockaddr*, socklen_t) = 0;
-    virtual KResult connect(FileDescriptor&, const sockaddr*, socklen_t, ShouldBlock) = 0;
+    virtual KResult connect(FileDescription&, const sockaddr*, socklen_t, ShouldBlock) = 0;
     virtual bool get_local_address(sockaddr*, socklen_t*) = 0;
     virtual bool get_peer_address(sockaddr*, socklen_t*) = 0;
     virtual bool is_local() const { return false; }
     virtual bool is_ipv4() const { return false; }
-    virtual void attach(FileDescriptor&) = 0;
-    virtual void detach(FileDescriptor&) = 0;
-    virtual ssize_t sendto(FileDescriptor&, const void*, size_t, int flags, const sockaddr*, socklen_t) = 0;
-    virtual ssize_t recvfrom(FileDescriptor&, void*, size_t, int flags, sockaddr*, socklen_t*) = 0;
+    virtual void attach(FileDescription&) = 0;
+    virtual void detach(FileDescription&) = 0;
+    virtual ssize_t sendto(FileDescription&, const void*, size_t, int flags, const sockaddr*, socklen_t) = 0;
+    virtual ssize_t recvfrom(FileDescription&, void*, size_t, int flags, sockaddr*, socklen_t*) = 0;
 
     KResult setsockopt(int level, int option, const void*, socklen_t);
     KResult getsockopt(int level, int option, void*, socklen_t*);
@@ -62,7 +62,7 @@ public:
 
     Lock& lock() { return m_lock; }
 
-    virtual String absolute_path(const FileDescriptor&) const override;
+    virtual String absolute_path(const FileDescription&) const override;
 
 protected:
     Socket(int domain, int type, int protocol);
diff --git a/Kernel/Net/TCPSocket.cpp b/Kernel/Net/TCPSocket.cpp
index acb3c47569..fe60425fd3 100644
--- a/Kernel/Net/TCPSocket.cpp
+++ b/Kernel/Net/TCPSocket.cpp
@@ -148,7 +148,7 @@ NetworkOrdered<word> TCPSocket::compute_tcp_checksum(const IPv4Address& source,
     return ~(checksum & 0xffff);
 }
 
-KResult TCPSocket::protocol_connect(FileDescriptor& descriptor, ShouldBlock should_block)
+KResult TCPSocket::protocol_connect(FileDescription& descriptor, ShouldBlock should_block)
 {
     auto* adapter = adapter_for_route_to(peer_address());
     if (!adapter)
diff --git a/Kernel/Net/TCPSocket.h b/Kernel/Net/TCPSocket.h
index 35856d7ae8..7ced06f56f 100644
--- a/Kernel/Net/TCPSocket.h
+++ b/Kernel/Net/TCPSocket.h
@@ -36,7 +36,7 @@ private:
 
     virtual int protocol_receive(const ByteBuffer&, void* buffer, size_t buffer_size, int flags, sockaddr* addr, socklen_t* addr_length) override;
     virtual int protocol_send(const void*, int) override;
-    virtual KResult protocol_connect(FileDescriptor&, ShouldBlock) override;
+    virtual KResult protocol_connect(FileDescription&, ShouldBlock) override;
     virtual int protocol_allocate_local_port() override;
     virtual bool protocol_is_disconnected() const override;
     virtual KResult protocol_bind() override;
diff --git a/Kernel/Net/UDPSocket.h b/Kernel/Net/UDPSocket.h
index a76eaa7fe7..80ef09b7bf 100644
--- a/Kernel/Net/UDPSocket.h
+++ b/Kernel/Net/UDPSocket.h
@@ -18,7 +18,7 @@ private:
 
     virtual int protocol_receive(const ByteBuffer&, void* buffer, size_t buffer_size, int flags, sockaddr* addr, socklen_t* addr_length) override;
     virtual int protocol_send(const void*, int) override;
-    virtual KResult protocol_connect(FileDescriptor&, ShouldBlock) override { return KSuccess; }
+    virtual KResult protocol_connect(FileDescription&, ShouldBlock) override { return KSuccess; }
     virtual int protocol_allocate_local_port() override;
     virtual KResult protocol_bind() override;
 };
diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index a4a9e03205..2e219f7612 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -3,7 +3,7 @@
 #include "kmalloc.h"
 #include "StdLib.h"
 #include "i386.h"
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <Kernel/FileSystem/VirtualFileSystem.h>
 #include <Kernel/Devices/NullDevice.h>
 #include <Kernel/VM/MemoryManager.h>
@@ -190,7 +190,7 @@ void* Process::sys$mmap(const Syscall::SC_mmap_params* params)
     }
     if (offset & ~PAGE_MASK)
         return (void*)-EINVAL;
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return (void*)-EBADF;
     auto region_or_error = descriptor->mmap(*this, LinearAddress((dword)addr), offset, size, prot);
@@ -765,7 +765,7 @@ Process* Process::from_pid(pid_t pid)
     return nullptr;
 }
 
-FileDescriptor* Process::file_descriptor(int fd)
+FileDescription* Process::file_description(int fd)
 {
     if (fd < 0)
         return nullptr;
@@ -774,7 +774,7 @@ FileDescriptor* Process::file_descriptor(int fd)
     return nullptr;
 }
 
-const FileDescriptor* Process::file_descriptor(int fd) const
+const FileDescription* Process::file_description(int fd) const
 {
     if (fd < 0)
         return nullptr;
@@ -789,7 +789,7 @@ ssize_t Process::sys$get_dir_entries(int fd, void* buffer, ssize_t size)
         return -EINVAL;
     if (!validate_write(buffer, size))
         return -EFAULT;
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     return descriptor->get_dir_entries((byte*)buffer, size);
@@ -797,7 +797,7 @@ ssize_t Process::sys$get_dir_entries(int fd, void* buffer, ssize_t size)
 
 int Process::sys$lseek(int fd, off_t offset, int whence)
 {
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     return descriptor->seek(offset, whence);
@@ -809,7 +809,7 @@ int Process::sys$ttyname_r(int fd, char* buffer, ssize_t size)
         return -EINVAL;
     if (!validate_write(buffer, size))
         return -EFAULT;
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     if (!descriptor->is_tty())
@@ -827,7 +827,7 @@ int Process::sys$ptsname_r(int fd, char* buffer, ssize_t size)
         return -EINVAL;
     if (!validate_write(buffer, size))
         return -EFAULT;
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     auto* master_pty = descriptor->master_pty();
@@ -850,7 +850,7 @@ ssize_t Process::sys$writev(int fd, const struct iovec* iov, int iov_count)
 
     // FIXME: Return EINVAL if sum of iovecs is greater than INT_MAX
 
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
 
@@ -874,7 +874,7 @@ ssize_t Process::sys$writev(int fd, const struct iovec* iov, int iov_count)
     return nwritten;
 }
 
-ssize_t Process::do_write(FileDescriptor& descriptor, const byte* data, int data_size)
+ssize_t Process::do_write(FileDescription& descriptor, const byte* data, int data_size)
 {
     ssize_t nwritten = 0;
     if (!descriptor.is_blocking()) {
@@ -931,7 +931,7 @@ ssize_t Process::sys$write(int fd, const byte* data, ssize_t size)
 #ifdef DEBUG_IO
     dbgprintf("%s(%u): sys$write(%d, %p, %u)\n", name().characters(), pid(), fd, data, size);
 #endif
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     auto nwritten = do_write(*descriptor, data, size);
@@ -954,7 +954,7 @@ ssize_t Process::sys$read(int fd, byte* buffer, ssize_t size)
 #ifdef DEBUG_IO
     dbgprintf("%s(%u) sys$read(%d, %p, %u)\n", name().characters(), pid(), fd, buffer, size);
 #endif
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     if (descriptor->is_blocking()) {
@@ -969,7 +969,7 @@ ssize_t Process::sys$read(int fd, byte* buffer, ssize_t size)
 
 int Process::sys$close(int fd)
 {
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     int rc = descriptor->close();
@@ -1009,10 +1009,10 @@ int Process::sys$fcntl(int fd, int cmd, dword arg)
     (void) cmd;
     (void) arg;
     dbgprintf("sys$fcntl: fd=%d, cmd=%d, arg=%u\n", fd, cmd, arg);
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
-    // NOTE: The FD flags are not shared between FileDescriptor objects.
+    // NOTE: The FD flags are not shared between FileDescription objects.
     //       This means that dup() doesn't copy the FD_CLOEXEC flag!
     switch (cmd) {
     case F_DUPFD: {
@@ -1045,7 +1045,7 @@ int Process::sys$fstat(int fd, stat* statbuf)
 {
     if (!validate_write_typed(statbuf))
         return -EFAULT;
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     return descriptor->fstat(*statbuf);
@@ -1226,7 +1226,7 @@ int Process::sys$uname(utsname* buf)
 
 int Process::sys$isatty(int fd)
 {
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     if (!descriptor->is_tty())
@@ -1607,7 +1607,7 @@ int Process::sys$setpgid(pid_t specified_pid, pid_t specified_pgid)
 
 int Process::sys$ioctl(int fd, unsigned request, unsigned arg)
 {
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     return descriptor->file().ioctl(*descriptor, request, arg);
@@ -1620,7 +1620,7 @@ int Process::sys$getdtablesize()
 
 int Process::sys$dup(int old_fd)
 {
-    auto* descriptor = file_descriptor(old_fd);
+    auto* descriptor = file_description(old_fd);
     if (!descriptor)
         return -EBADF;
     int new_fd = alloc_fd(0);
@@ -1632,7 +1632,7 @@ int Process::sys$dup(int old_fd)
 
 int Process::sys$dup2(int old_fd, int new_fd)
 {
-    auto* descriptor = file_descriptor(old_fd);
+    auto* descriptor = file_description(old_fd);
     if (!descriptor)
         return -EBADF;
     if (new_fd < 0 || new_fd >= m_max_open_file_descriptors)
@@ -1779,7 +1779,7 @@ int Process::sys$select(const Syscall::SC_select_params* params)
             return 0;
         for (int fd = 0; fd < params->nfds; ++fd) {
             if (FD_ISSET(fd, fds)) {
-                if (!file_descriptor(fd))
+                if (!file_description(fd))
                     return -EBADF;
                 vector.append(fd);
             }
@@ -1806,7 +1806,7 @@ int Process::sys$select(const Syscall::SC_select_params* params)
             return;
         FD_ZERO(fds);
         for (int fd : vector) {
-            if (auto* descriptor = file_descriptor(fd); descriptor && should_mark(*descriptor)) {
+            if (auto* descriptor = file_description(fd); descriptor && should_mark(*descriptor)) {
                 FD_SET(fd, fds);
                 ++marked_fd_count;
             }
@@ -1858,7 +1858,7 @@ int Process::sys$poll(pollfd* fds, int nfds, int timeout)
     int fds_with_revents = 0;
 
     for (int i = 0; i < nfds; ++i) {
-        auto* descriptor = file_descriptor(fds[i].fd);
+        auto* descriptor = file_description(fds[i].fd);
         if (!descriptor) {
             fds[i].revents = POLLNVAL;
             continue;
@@ -1934,7 +1934,7 @@ int Process::sys$chmod(const char* pathname, mode_t mode)
 
 int Process::sys$fchmod(int fd, mode_t mode)
 {
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     return descriptor->fchmod(mode);
@@ -1942,7 +1942,7 @@ int Process::sys$fchmod(int fd, mode_t mode)
 
 int Process::sys$fchown(int fd, uid_t uid, gid_t gid)
 {
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     return descriptor->chown(uid, gid);
@@ -2041,7 +2041,7 @@ int Process::sys$socket(int domain, int type, int protocol)
     auto result = Socket::create(domain, type, protocol);
     if (result.is_error())
         return result.error();
-    auto descriptor = FileDescriptor::create(*result.value());
+    auto descriptor = FileDescription::create(*result.value());
     unsigned flags = 0;
     if (type & SOCK_CLOEXEC)
         flags |= FD_CLOEXEC;
@@ -2055,7 +2055,7 @@ int Process::sys$bind(int sockfd, const sockaddr* address, socklen_t address_len
 {
     if (!validate_read(address, address_length))
         return -EFAULT;
-    auto* descriptor = file_descriptor(sockfd);
+    auto* descriptor = file_description(sockfd);
     if (!descriptor)
         return -EBADF;
     if (!descriptor->is_socket())
@@ -2066,7 +2066,7 @@ int Process::sys$bind(int sockfd, const sockaddr* address, socklen_t address_len
 
 int Process::sys$listen(int sockfd, int backlog)
 {
-    auto* descriptor = file_descriptor(sockfd);
+    auto* descriptor = file_description(sockfd);
     if (!descriptor)
         return -EBADF;
     if (!descriptor->is_socket())
@@ -2088,7 +2088,7 @@ int Process::sys$accept(int accepting_socket_fd, sockaddr* address, socklen_t* a
     int accepted_socket_fd = alloc_fd();
     if (accepted_socket_fd < 0)
         return accepted_socket_fd;
-    auto* accepting_socket_descriptor = file_descriptor(accepting_socket_fd);
+    auto* accepting_socket_descriptor = file_description(accepting_socket_fd);
     if (!accepting_socket_descriptor)
         return -EBADF;
     if (!accepting_socket_descriptor->is_socket())
@@ -2102,7 +2102,7 @@ int Process::sys$accept(int accepting_socket_fd, sockaddr* address, socklen_t* a
     ASSERT(accepted_socket);
     bool success = accepted_socket->get_local_address(address, address_size);
     ASSERT(success);
-    auto accepted_socket_descriptor = FileDescriptor::create(move(accepted_socket), SocketRole::Accepted);
+    auto accepted_socket_descriptor = FileDescription::create(move(accepted_socket), SocketRole::Accepted);
     // NOTE: The accepted socket inherits fd flags from the accepting socket.
     //       I'm not sure if this matches other systems but it makes sense to me.
     accepted_socket_descriptor->set_blocking(accepting_socket_descriptor->is_blocking());
@@ -2117,7 +2117,7 @@ int Process::sys$connect(int sockfd, const sockaddr* address, socklen_t address_
     int fd = alloc_fd();
     if (fd < 0)
         return fd;
-    auto* descriptor = file_descriptor(sockfd);
+    auto* descriptor = file_description(sockfd);
     if (!descriptor)
         return -EBADF;
     if (!descriptor->is_socket())
@@ -2151,7 +2151,7 @@ ssize_t Process::sys$sendto(const Syscall::SC_sendto_params* params)
         return -EFAULT;
     if (addr && !validate_read(addr, addr_length))
         return -EFAULT;
-    auto* descriptor = file_descriptor(sockfd);
+    auto* descriptor = file_description(sockfd);
     if (!descriptor)
         return -EBADF;
     if (!descriptor->is_socket())
@@ -2183,7 +2183,7 @@ ssize_t Process::sys$recvfrom(const Syscall::SC_recvfrom_params* params)
     } else if (addr) {
        return -EINVAL;
     }
-    auto* descriptor = file_descriptor(sockfd);
+    auto* descriptor = file_description(sockfd);
     if (!descriptor)
         return -EBADF;
     if (!descriptor->is_socket())
@@ -2212,7 +2212,7 @@ int Process::sys$getsockname(int sockfd, sockaddr* addr, socklen_t* addrlen)
     if (!validate_write(addr, *addrlen))
         return -EFAULT;
 
-    auto* descriptor = file_descriptor(sockfd);
+    auto* descriptor = file_description(sockfd);
     if (!descriptor)
         return -EBADF;
 
@@ -2237,7 +2237,7 @@ int Process::sys$getpeername(int sockfd, sockaddr* addr, socklen_t* addrlen)
     if (!validate_write(addr, *addrlen))
         return -EFAULT;
 
-    auto* descriptor = file_descriptor(sockfd);
+    auto* descriptor = file_description(sockfd);
     if (!descriptor)
         return -EBADF;
 
@@ -2312,7 +2312,7 @@ int Process::sys$getsockopt(const Syscall::SC_getsockopt_params* params)
         return -EFAULT;
     if (!validate_write(value, *value_size))
         return -EFAULT;
-    auto* descriptor = file_descriptor(sockfd);
+    auto* descriptor = file_description(sockfd);
     if (!descriptor)
         return -EBADF;
     if (!descriptor->is_socket())
@@ -2333,7 +2333,7 @@ int Process::sys$setsockopt(const Syscall::SC_setsockopt_params* params)
 
     if (!validate_read(value, value_size))
         return -EFAULT;
-    auto* descriptor = file_descriptor(sockfd);
+    auto* descriptor = file_description(sockfd);
     if (!descriptor)
         return -EBADF;
     if (!descriptor->is_socket())
@@ -2672,7 +2672,7 @@ int Process::sys$shm_open(const char* name, int flags, mode_t mode)
     auto shm_or_error = SharedMemory::open(String(name), flags, mode);
     if (shm_or_error.is_error())
         return shm_or_error.error();
-    auto descriptor = FileDescriptor::create(shm_or_error.value().ptr());
+    auto descriptor = FileDescription::create(shm_or_error.value().ptr());
     m_fds[fd].set(move(descriptor), FD_CLOEXEC);
     return fd;
 }
@@ -2686,7 +2686,7 @@ int Process::sys$shm_unlink(const char* name)
 
 int Process::sys$ftruncate(int fd, off_t length)
 {
-    auto* descriptor = file_descriptor(fd);
+    auto* descriptor = file_description(fd);
     if (!descriptor)
         return -EBADF;
     // FIXME: Check that fd is writable, otherwise EINVAL.
@@ -2704,7 +2704,7 @@ int Process::sys$systrace(pid_t pid)
     int fd = alloc_fd();
     if (fd < 0)
         return fd;
-    auto descriptor = FileDescriptor::create(peer->ensure_tracer());
+    auto descriptor = FileDescription::create(peer->ensure_tracer());
     m_fds[fd].set(move(descriptor), 0);
     return fd;
 }
@@ -2716,13 +2716,13 @@ ProcessTracer& Process::ensure_tracer()
     return *m_tracer;
 }
 
-void Process::FileDescriptorAndFlags::clear()
+void Process::FileDescriptionAndFlags::clear()
 {
     descriptor = nullptr;
     flags = 0;
 }
 
-void Process::FileDescriptorAndFlags::set(Retained<FileDescriptor>&& d, dword f)
+void Process::FileDescriptionAndFlags::set(Retained<FileDescription>&& d, dword f)
 {
     descriptor = move(d);
     flags = f;
diff --git a/Kernel/Process.h b/Kernel/Process.h
index b5cadaec0c..a792e5a2a2 100644
--- a/Kernel/Process.h
+++ b/Kernel/Process.h
@@ -16,7 +16,7 @@
 #include <LibC/signal_numbers.h>
 
 class ELFLoader;
-class FileDescriptor;
+class FileDescription;
 class PageDirectory;
 class Region;
 class VMObject;
@@ -87,8 +87,8 @@ public:
 
     bool in_group(gid_t) const;
 
-    FileDescriptor* file_descriptor(int fd);
-    const FileDescriptor* file_descriptor(int fd) const;
+    FileDescription* file_description(int fd);
+    const FileDescription* file_description(int fd) const;
 
     template<typename Callback>
     static void for_each(Callback);
@@ -280,7 +280,7 @@ private:
     Range allocate_range(LinearAddress, size_t);
 
     int do_exec(String path, Vector<String> arguments, Vector<String> environment);
-    ssize_t do_write(FileDescriptor&, const byte*, int data_size);
+    ssize_t do_write(FileDescription&, const byte*, int data_size);
 
     int alloc_fd(int first_candidate_fd = 0);
     void disown_all_shared_buffers();
@@ -306,17 +306,17 @@ private:
 
     Priority m_priority { NormalPriority };
 
-    struct FileDescriptorAndFlags {
+    struct FileDescriptionAndFlags {
         operator bool() const { return !!descriptor; }
         void clear();
-        void set(Retained<FileDescriptor>&& d, dword f = 0);
-        RetainPtr<FileDescriptor> descriptor;
+        void set(Retained<FileDescription>&& d, dword f = 0);
+        RetainPtr<FileDescription> descriptor;
         dword flags { 0 };
     };
-    Vector<FileDescriptorAndFlags> m_fds;
+    Vector<FileDescriptionAndFlags> m_fds;
     RingLevel m_ring { Ring0 };
 
-    int m_max_open_file_descriptors { 128 };
+    static const int m_max_open_file_descriptors { FD_SETSIZE };
 
     byte m_termination_status { 0 };
     byte m_termination_signal { 0 };
diff --git a/Kernel/ProcessTracer.cpp b/Kernel/ProcessTracer.cpp
index e81568b4a0..66aeb8ac49 100644
--- a/Kernel/ProcessTracer.cpp
+++ b/Kernel/ProcessTracer.cpp
@@ -18,7 +18,7 @@ void ProcessTracer::did_syscall(dword function, dword arg1, dword arg2, dword ar
     m_calls.enqueue(data);
 }
 
-int ProcessTracer::read(FileDescriptor&, byte* buffer, int buffer_size)
+int ProcessTracer::read(FileDescription&, byte* buffer, int buffer_size)
 {
     if (m_calls.is_empty())
         return 0;
@@ -29,7 +29,7 @@ int ProcessTracer::read(FileDescriptor&, byte* buffer, int buffer_size)
     return sizeof(data);
 }
 
-String ProcessTracer::absolute_path(const FileDescriptor&) const
+String ProcessTracer::absolute_path(const FileDescription&) const
 {
     return String::format("tracer:%d", m_pid);
 }
diff --git a/Kernel/ProcessTracer.h b/Kernel/ProcessTracer.h
index 3f23e4e31d..0b71b0ba0a 100644
--- a/Kernel/ProcessTracer.h
+++ b/Kernel/ProcessTracer.h
@@ -12,13 +12,13 @@ public:
     bool is_dead() const { return m_dead; }
     void set_dead() { m_dead = true; }
 
-    virtual bool can_read(FileDescriptor&) const override { return !m_calls.is_empty() || m_dead; }
-    virtual int read(FileDescriptor&, byte*, int) override;
+    virtual bool can_read(FileDescription&) const override { return !m_calls.is_empty() || m_dead; }
+    virtual int read(FileDescription&, byte*, int) override;
 
-    virtual bool can_write(FileDescriptor&) const override { return true; }
-    virtual int write(FileDescriptor&, const byte*, int) override { return -EIO; }
+    virtual bool can_write(FileDescription&) const override { return true; }
+    virtual int write(FileDescription&, const byte*, int) override { return -EIO; }
 
-    virtual String absolute_path(const FileDescriptor&) const override;
+    virtual String absolute_path(const FileDescription&) const override;
 
     void did_syscall(dword function, dword arg1, dword arg2, dword arg3, dword result);
     pid_t pid() const { return m_pid; }
diff --git a/Kernel/Scheduler.cpp b/Kernel/Scheduler.cpp
index 98c357e6b1..5063f157e7 100644
--- a/Kernel/Scheduler.cpp
+++ b/Kernel/Scheduler.cpp
@@ -4,7 +4,7 @@
 #include "i8253.h"
 #include <AK/TemporaryChange.h>
 #include <Kernel/Alarm.h>
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <Kernel/Devices/PCSpeaker.h>
 
 //#define LOG_EVERY_CONTEXT_SWITCH
diff --git a/Kernel/SharedMemory.cpp b/Kernel/SharedMemory.cpp
index 830c8ffee9..5f4e54c4dd 100644
--- a/Kernel/SharedMemory.cpp
+++ b/Kernel/SharedMemory.cpp
@@ -68,12 +68,12 @@ KResult SharedMemory::truncate(int length)
     return KResult(-ENOTIMPL);
 }
 
-String SharedMemory::absolute_path(const FileDescriptor&) const
+String SharedMemory::absolute_path(const FileDescription&) const
 {
     return String::format("shm:%u", this);
 }
 
-int SharedMemory::read(FileDescriptor&, byte* buffer, int buffer_size)
+int SharedMemory::read(FileDescription&, byte* buffer, int buffer_size)
 {
     UNUSED_PARAM(buffer);
     UNUSED_PARAM(buffer_size);
@@ -81,7 +81,7 @@ int SharedMemory::read(FileDescriptor&, byte* buffer, int buffer_size)
     ASSERT_NOT_REACHED();
 }
 
-int SharedMemory::write(FileDescriptor&, const byte* data, int data_size)
+int SharedMemory::write(FileDescription&, const byte* data, int data_size)
 {
     UNUSED_PARAM(data);
     UNUSED_PARAM(data_size);
@@ -89,7 +89,7 @@ int SharedMemory::write(FileDescriptor&, const byte* data, int data_size)
     ASSERT_NOT_REACHED();
 }
 
-KResultOr<Region*> SharedMemory::mmap(Process& process, FileDescriptor&, LinearAddress laddr, size_t offset, size_t size, int prot)
+KResultOr<Region*> SharedMemory::mmap(Process& process, FileDescription&, LinearAddress laddr, size_t offset, size_t size, int prot)
 {
     if (!vmo())
         return KResult(-ENODEV);
diff --git a/Kernel/SharedMemory.h b/Kernel/SharedMemory.h
index b0de2e5009..c0ec93a132 100644
--- a/Kernel/SharedMemory.h
+++ b/Kernel/SharedMemory.h
@@ -24,14 +24,14 @@ public:
 
 private:
     // ^File
-    virtual bool can_read(FileDescriptor&) const override { return true; }
-    virtual bool can_write(FileDescriptor&) const override { return true; }
-    virtual int read(FileDescriptor&, byte*, int) override;
-    virtual int write(FileDescriptor&, const byte*, int) override;
-    virtual String absolute_path(const FileDescriptor&) const override;
+    virtual bool can_read(FileDescription&) const override { return true; }
+    virtual bool can_write(FileDescription&) const override { return true; }
+    virtual int read(FileDescription&, byte*, int) override;
+    virtual int write(FileDescription&, const byte*, int) override;
+    virtual String absolute_path(const FileDescription&) const override;
     virtual const char* class_name() const override { return "SharedMemory"; }
     virtual bool is_shared_memory() const override { return true; }
-    virtual KResultOr<Region*> mmap(Process&, FileDescriptor&, LinearAddress, size_t offset, size_t size, int prot) override;
+    virtual KResultOr<Region*> mmap(Process&, FileDescription&, LinearAddress, size_t offset, size_t size, int prot) override;
 
     SharedMemory(const String& name, uid_t, gid_t, mode_t);
 
diff --git a/Kernel/TTY/MasterPTY.cpp b/Kernel/TTY/MasterPTY.cpp
index 22e87495b0..c3eb39b0b1 100644
--- a/Kernel/TTY/MasterPTY.cpp
+++ b/Kernel/TTY/MasterPTY.cpp
@@ -31,14 +31,14 @@ String MasterPTY::pts_name() const
     return m_pts_name;
 }
 
-ssize_t MasterPTY::read(FileDescriptor&, byte* buffer, ssize_t size)
+ssize_t MasterPTY::read(FileDescription&, byte* buffer, ssize_t size)
 {
     if (!m_slave && m_buffer.is_empty())
         return 0;
     return m_buffer.read(buffer, size);
 }
 
-ssize_t MasterPTY::write(FileDescriptor&, const byte* buffer, ssize_t size)
+ssize_t MasterPTY::write(FileDescription&, const byte* buffer, ssize_t size)
 {
     if (!m_slave)
         return -EIO;
@@ -46,14 +46,14 @@ ssize_t MasterPTY::write(FileDescriptor&, const byte* buffer, ssize_t size)
     return size;
 }
 
-bool MasterPTY::can_read(FileDescriptor&) const
+bool MasterPTY::can_read(FileDescription&) const
 {
     if (!m_slave)
         return true;
     return !m_buffer.is_empty();
 }
 
-bool MasterPTY::can_write(FileDescriptor&) const
+bool MasterPTY::can_write(FileDescription&) const
 {
     return true;
 }
@@ -64,7 +64,7 @@ void MasterPTY::notify_slave_closed(Badge<SlavePTY>)
     dbgprintf("MasterPTY(%u): slave closed, my retains: %u, slave retains: %u\n", m_index, retain_count(), m_slave->retain_count());
 #endif
     // +1 retain for my MasterPTY::m_slave
-    // +1 retain for FileDescriptor::m_device
+    // +1 retain for FileDescription::m_device
     if (m_slave->retain_count() == 2)
         m_slave = nullptr;
 }
@@ -88,7 +88,7 @@ void MasterPTY::close()
 {
     if (retain_count() == 2) {
         InterruptDisabler disabler;
-        // After the closing FileDescriptor dies, slave is the only thing keeping me alive.
+        // After the closing FileDescription dies, slave is the only thing keeping me alive.
         // From this point, let's consider ourselves closed.
         m_closed = true;
 
@@ -96,7 +96,7 @@ void MasterPTY::close()
     }
 }
 
-int MasterPTY::ioctl(FileDescriptor& descriptor, unsigned request, unsigned arg)
+int MasterPTY::ioctl(FileDescription& descriptor, unsigned request, unsigned arg)
 {
     if (request == TIOCSWINSZ)
         return m_slave->ioctl(descriptor, request, arg);
diff --git a/Kernel/TTY/MasterPTY.h b/Kernel/TTY/MasterPTY.h
index 22fd3db48e..accb6902bc 100644
--- a/Kernel/TTY/MasterPTY.h
+++ b/Kernel/TTY/MasterPTY.h
@@ -20,13 +20,13 @@ public:
 
 private:
     // ^CharacterDevice
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual bool can_write(FileDescriptor&) const override;
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual bool can_write(FileDescription&) const override;
     virtual void close() override;
     virtual bool is_master_pty() const override { return true; }
-    virtual int ioctl(FileDescriptor&, unsigned request, unsigned arg) override;
+    virtual int ioctl(FileDescription&, unsigned request, unsigned arg) override;
     virtual const char* class_name() const override { return "MasterPTY"; }
 
     RetainPtr<SlavePTY> m_slave;
diff --git a/Kernel/TTY/PTYMultiplexer.cpp b/Kernel/TTY/PTYMultiplexer.cpp
index 1620f8f952..3b8b596502 100644
--- a/Kernel/TTY/PTYMultiplexer.cpp
+++ b/Kernel/TTY/PTYMultiplexer.cpp
@@ -1,6 +1,6 @@
 #include "PTYMultiplexer.h"
 #include "MasterPTY.h"
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <Kernel/Process.h>
 #include <LibC/errno_numbers.h>
 
@@ -28,7 +28,7 @@ PTYMultiplexer::~PTYMultiplexer()
 {
 }
 
-KResultOr<Retained<FileDescriptor>> PTYMultiplexer::open(int options)
+KResultOr<Retained<FileDescription>> PTYMultiplexer::open(int options)
 {
     UNUSED_PARAM(options);
     LOCKER(m_lock);
@@ -39,7 +39,7 @@ KResultOr<Retained<FileDescriptor>> PTYMultiplexer::open(int options)
 #ifdef PTMX_DEBUG
     dbgprintf("PTYMultiplexer::open: Vending master %u\n", master->index());
 #endif
-    return FileDescriptor::create(master.ptr());
+    return FileDescription::create(master.ptr());
 }
 
 void PTYMultiplexer::notify_master_destroyed(Badge<MasterPTY>, unsigned index)
diff --git a/Kernel/TTY/PTYMultiplexer.h b/Kernel/TTY/PTYMultiplexer.h
index 1d06d6f4d8..b25a5674fc 100644
--- a/Kernel/TTY/PTYMultiplexer.h
+++ b/Kernel/TTY/PTYMultiplexer.h
@@ -15,11 +15,11 @@ public:
     static PTYMultiplexer& the();
 
     // ^CharacterDevice
-    virtual KResultOr<Retained<FileDescriptor>> open(int options) override;
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override { return 0; }
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override { return 0; }
-    virtual bool can_read(FileDescriptor&) const override { return true; }
-    virtual bool can_write(FileDescriptor&) const override { return true; }
+    virtual KResultOr<Retained<FileDescription>> open(int options) override;
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override { return 0; }
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override { return 0; }
+    virtual bool can_read(FileDescription&) const override { return true; }
+    virtual bool can_write(FileDescription&) const override { return true; }
 
     void notify_master_destroyed(Badge<MasterPTY>, unsigned index);
 
diff --git a/Kernel/TTY/SlavePTY.cpp b/Kernel/TTY/SlavePTY.cpp
index f40392037c..102a7ee48a 100644
--- a/Kernel/TTY/SlavePTY.cpp
+++ b/Kernel/TTY/SlavePTY.cpp
@@ -41,19 +41,19 @@ ssize_t SlavePTY::on_tty_write(const byte* data, ssize_t size)
     return m_master->on_slave_write(data, size);
 }
 
-bool SlavePTY::can_write(FileDescriptor&) const
+bool SlavePTY::can_write(FileDescription&) const
 {
     return m_master->can_write_from_slave();
 }
 
-bool SlavePTY::can_read(FileDescriptor& descriptor) const
+bool SlavePTY::can_read(FileDescription& descriptor) const
 {
     if (m_master->is_closed())
         return true;
     return TTY::can_read(descriptor);
 }
 
-ssize_t SlavePTY::read(FileDescriptor& descriptor, byte* buffer, ssize_t size)
+ssize_t SlavePTY::read(FileDescription& descriptor, byte* buffer, ssize_t size)
 {
     if (m_master->is_closed())
         return 0;
diff --git a/Kernel/TTY/SlavePTY.h b/Kernel/TTY/SlavePTY.h
index ffe7ebd8b1..83387d8731 100644
--- a/Kernel/TTY/SlavePTY.h
+++ b/Kernel/TTY/SlavePTY.h
@@ -21,9 +21,9 @@ private:
     virtual ssize_t on_tty_write(const byte*, ssize_t) override;
 
     // ^CharacterDevice
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual bool can_write(FileDescriptor&) const override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual bool can_write(FileDescription&) const override;
     virtual const char* class_name() const override { return "SlavePTY"; }
     virtual void close() override;
 
diff --git a/Kernel/TTY/TTY.cpp b/Kernel/TTY/TTY.cpp
index 3a659a9585..eb82d6f720 100644
--- a/Kernel/TTY/TTY.cpp
+++ b/Kernel/TTY/TTY.cpp
@@ -24,12 +24,12 @@ void TTY::set_default_termios()
     memcpy(m_termios.c_cc, default_cc, sizeof(default_cc));
 }
 
-ssize_t TTY::read(FileDescriptor&, byte* buffer, ssize_t size)
+ssize_t TTY::read(FileDescription&, byte* buffer, ssize_t size)
 {
     return m_buffer.read(buffer, size);
 }
 
-ssize_t TTY::write(FileDescriptor&, const byte* buffer, ssize_t size)
+ssize_t TTY::write(FileDescription&, const byte* buffer, ssize_t size)
 {
 #ifdef TTY_DEBUG
     dbgprintf("TTY::write {%u} ", size);
@@ -42,12 +42,12 @@ ssize_t TTY::write(FileDescriptor&, const byte* buffer, ssize_t size)
     return size;
 }
 
-bool TTY::can_read(FileDescriptor&) const
+bool TTY::can_read(FileDescription&) const
 {
     return !m_buffer.is_empty();
 }
 
-bool TTY::can_write(FileDescriptor&) const
+bool TTY::can_write(FileDescription&) const
 {
     return true;
 }
@@ -111,7 +111,7 @@ void TTY::set_termios(const termios& t)
               );
 }
 
-int TTY::ioctl(FileDescriptor&, unsigned request, unsigned arg)
+int TTY::ioctl(FileDescription&, unsigned request, unsigned arg)
 {
     auto& process = current->process();
     pid_t pgid;
diff --git a/Kernel/TTY/TTY.h b/Kernel/TTY/TTY.h
index 150b7c3761..78c7762829 100644
--- a/Kernel/TTY/TTY.h
+++ b/Kernel/TTY/TTY.h
@@ -10,12 +10,12 @@ class TTY : public CharacterDevice {
 public:
     virtual ~TTY() override;
 
-    virtual ssize_t read(FileDescriptor&, byte*, ssize_t) override;
-    virtual ssize_t write(FileDescriptor&, const byte*, ssize_t) override;
-    virtual bool can_read(FileDescriptor&) const override;
-    virtual bool can_write(FileDescriptor&) const override;
-    virtual int ioctl(FileDescriptor&, unsigned request, unsigned arg) override final;
-    virtual String absolute_path(const FileDescriptor&) const override { return tty_name(); }
+    virtual ssize_t read(FileDescription&, byte*, ssize_t) override;
+    virtual ssize_t write(FileDescription&, const byte*, ssize_t) override;
+    virtual bool can_read(FileDescription&) const override;
+    virtual bool can_write(FileDescription&) const override;
+    virtual int ioctl(FileDescription&, unsigned request, unsigned arg) override final;
+    virtual String absolute_path(const FileDescription&) const override { return tty_name(); }
 
     virtual String tty_name() const = 0;
 
diff --git a/Kernel/Thread.cpp b/Kernel/Thread.cpp
index 62caa2ce23..0d53125938 100644
--- a/Kernel/Thread.cpp
+++ b/Kernel/Thread.cpp
@@ -1,7 +1,7 @@
 #include <Kernel/Thread.h>
 #include <Kernel/Scheduler.h>
 #include <Kernel/Process.h>
-#include <Kernel/FileSystem/FileDescriptor.h>
+#include <Kernel/FileSystem/FileDescription.h>
 #include <Kernel/VM/MemoryManager.h>
 #include <LibC/signal_numbers.h>
 
@@ -129,7 +129,7 @@ void Thread::block(Thread::State new_state)
         process().big_lock().lock();
 }
 
-void Thread::block(Thread::State new_state, FileDescriptor& descriptor)
+void Thread::block(Thread::State new_state, FileDescription& descriptor)
 {
     m_blocked_descriptor = &descriptor;
     block(new_state);
@@ -512,7 +512,7 @@ Thread* Thread::clone(Process& process)
     return clone;
 }
 
-KResult Thread::wait_for_connect(FileDescriptor& descriptor)
+KResult Thread::wait_for_connect(FileDescription& descriptor)
 {
     ASSERT(descriptor.is_socket());
     auto& socket = *descriptor.socket();
diff --git a/Kernel/Thread.h b/Kernel/Thread.h
index 40f7abba11..328d2b0388 100644
--- a/Kernel/Thread.h
+++ b/Kernel/Thread.h
@@ -12,7 +12,7 @@
 #include <Kernel/i386.h>
 
 class Alarm;
-class FileDescriptor;
+class FileDescription;
 class Process;
 class Region;
 class Thread;
@@ -97,13 +97,13 @@ public:
 
     void sleep(dword ticks);
     void block(Thread::State);
-    void block(Thread::State, FileDescriptor&);
+    void block(Thread::State, FileDescription&);
     void unblock();
 
     void set_wakeup_time(qword t) { m_wakeup_time = t; }
     qword wakeup_time() const { return m_wakeup_time; }
     void snooze_until(Alarm&);
-    KResult wait_for_connect(FileDescriptor&);
+    KResult wait_for_connect(FileDescription&);
 
     const FarPtr& far_ptr() const { return m_far_ptr; }
 
@@ -181,7 +181,7 @@ private:
     RetainPtr<Region> m_kernel_stack_region;
     RetainPtr<Region> m_kernel_stack_for_signal_handler_region;
     pid_t m_waitee_pid { -1 };
-    RetainPtr<FileDescriptor> m_blocked_descriptor;
+    RetainPtr<FileDescription> m_blocked_descriptor;
     timeval m_select_timeout;
     SignalActionData m_signal_action_data[32];
     Region* m_signal_stack_user_region { nullptr };