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Kernel: Make self-contained locking smart pointers their own classes

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Until now, our kernel has reimplemented a number of AK classes to
provide automatic internal locking:

- RefPtr
- NonnullRefPtr
- WeakPtr
- Weakable

This patch renames the Kernel classes so that they can coexist with
the original AK classes:

- RefPtr => LockRefPtr
- NonnullRefPtr => NonnullLockRefPtr
- WeakPtr => LockWeakPtr
- Weakable => LockWeakable

The goal here is to eventually get rid of the Lock* classes in favor of
using external locking.
This commit is contained in:
Andreas Kling 2022-08-19 20:53:40 +02:00
parent e475263113
commit 11eee67b85
360 changed files with 1703 additions and 1672 deletions
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4
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/BlockDevicesDirectory.cpp
View file

@ -12,9 +12,9 @@ namespace Kernel {
static SysFSBlockDevicesDirectory* s_the { nullptr };
NonnullRefPtr<SysFSBlockDevicesDirectory> SysFSBlockDevicesDirectory::must_create(SysFSDeviceIdentifiersDirectory const& devices_directory)
NonnullLockRefPtr<SysFSBlockDevicesDirectory> SysFSBlockDevicesDirectory::must_create(SysFSDeviceIdentifiersDirectory const& devices_directory)
{
return adopt_ref_if_nonnull(new SysFSBlockDevicesDirectory(devices_directory)).release_nonnull();
return adopt_lock_ref_if_nonnull(new SysFSBlockDevicesDirectory(devices_directory)).release_nonnull();
}
SysFSBlockDevicesDirectory::SysFSBlockDevicesDirectory(SysFSDeviceIdentifiersDirectory const& devices_directory)
: SysFSDirectory(devices_directory)

2
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/BlockDevicesDirectory.h
View file

@ -17,7 +17,7 @@ class SysFSBlockDevicesDirectory final : public SysFSDirectory {
public:
virtual StringView name() const override { return "block"sv; }
static NonnullRefPtr<SysFSBlockDevicesDirectory> must_create(SysFSDeviceIdentifiersDirectory const&);
static NonnullLockRefPtr<SysFSBlockDevicesDirectory> must_create(SysFSDeviceIdentifiersDirectory const&);
static SysFSBlockDevicesDirectory& the();

4
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/CharacterDevicesDirectory.cpp
View file

@ -12,9 +12,9 @@ namespace Kernel {
static SysFSCharacterDevicesDirectory* s_the { nullptr };
NonnullRefPtr<SysFSCharacterDevicesDirectory> SysFSCharacterDevicesDirectory::must_create(SysFSDeviceIdentifiersDirectory const& devices_directory)
NonnullLockRefPtr<SysFSCharacterDevicesDirectory> SysFSCharacterDevicesDirectory::must_create(SysFSDeviceIdentifiersDirectory const& devices_directory)
{
return adopt_ref_if_nonnull(new SysFSCharacterDevicesDirectory(devices_directory)).release_nonnull();
return adopt_lock_ref_if_nonnull(new SysFSCharacterDevicesDirectory(devices_directory)).release_nonnull();
}
SysFSCharacterDevicesDirectory::SysFSCharacterDevicesDirectory(SysFSDeviceIdentifiersDirectory const& devices_directory)
: SysFSDirectory(devices_directory)

2
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/CharacterDevicesDirectory.h
View file

@ -17,7 +17,7 @@ class SysFSCharacterDevicesDirectory final : public SysFSDirectory {
public:
virtual StringView name() const override { return "char"sv; }
static NonnullRefPtr<SysFSCharacterDevicesDirectory> must_create(SysFSDeviceIdentifiersDirectory const&);
static NonnullLockRefPtr<SysFSCharacterDevicesDirectory> must_create(SysFSDeviceIdentifiersDirectory const&);
static SysFSCharacterDevicesDirectory& the();

4
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/DeviceComponent.cpp
View file

@ -10,11 +10,11 @@
namespace Kernel {
NonnullRefPtr<SysFSDeviceComponent> SysFSDeviceComponent::must_create(Device const& device)
NonnullLockRefPtr<SysFSDeviceComponent> SysFSDeviceComponent::must_create(Device const& device)
{
// FIXME: Handle allocation failure gracefully
auto device_name = MUST(KString::formatted("{}:{}", device.major(), device.minor()));
return adopt_ref_if_nonnull(new SysFSDeviceComponent(move(device_name), device)).release_nonnull();
return adopt_lock_ref_if_nonnull(new SysFSDeviceComponent(move(device_name), device)).release_nonnull();
}
SysFSDeviceComponent::SysFSDeviceComponent(NonnullOwnPtr<KString> major_minor_formatted_device_name, Device const& device)
: SysFSComponent()

4
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/DeviceComponent.h
View file

@ -14,12 +14,12 @@ namespace Kernel {
class SysFSDeviceComponent final
: public SysFSComponent
, public Weakable<SysFSDeviceComponent> {
, public LockWeakable<SysFSDeviceComponent> {
friend class SysFSBlockDevicesDirectory;
friend class SysFSCharacterDevicesDirectory;
public:
static NonnullRefPtr<SysFSDeviceComponent> must_create(Device const&);
static NonnullLockRefPtr<SysFSDeviceComponent> must_create(Device const&);
virtual StringView name() const override { return m_major_minor_formatted_device_name->view(); }
bool is_block_device() const { return m_block_device; }

4
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/Directory.cpp
View file

@ -20,9 +20,9 @@ SysFSDeviceIdentifiersDirectory& SysFSDeviceIdentifiersDirectory::the()
return *s_the;
}
UNMAP_AFTER_INIT NonnullRefPtr<SysFSDeviceIdentifiersDirectory> SysFSDeviceIdentifiersDirectory::must_create(SysFSRootDirectory const& root_directory)
UNMAP_AFTER_INIT NonnullLockRefPtr<SysFSDeviceIdentifiersDirectory> SysFSDeviceIdentifiersDirectory::must_create(SysFSRootDirectory const& root_directory)
{
auto devices_directory = adopt_ref_if_nonnull(new SysFSDeviceIdentifiersDirectory(root_directory)).release_nonnull();
auto devices_directory = adopt_lock_ref_if_nonnull(new SysFSDeviceIdentifiersDirectory(root_directory)).release_nonnull();
MUST(devices_directory->m_child_components.with([&](auto& list) -> ErrorOr<void> {
list.append(SysFSBlockDevicesDirectory::must_create(*devices_directory));
list.append(SysFSCharacterDevicesDirectory::must_create(*devices_directory));

2
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/Directory.h
View file

@ -14,7 +14,7 @@ namespace Kernel {
class SysFSDeviceIdentifiersDirectory final : public SysFSDirectory {
public:
virtual StringView name() const override { return "dev"sv; }
static NonnullRefPtr<SysFSDeviceIdentifiersDirectory> must_create(SysFSRootDirectory const&);
static NonnullLockRefPtr<SysFSDeviceIdentifiersDirectory> must_create(SysFSRootDirectory const&);
static SysFSDeviceIdentifiersDirectory& the();

8
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/SymbolicLinkDeviceComponent.cpp
View file

@ -11,16 +11,16 @@
namespace Kernel {
ErrorOr<NonnullRefPtr<SysFSSymbolicLinkDeviceComponent>> SysFSSymbolicLinkDeviceComponent::try_create(SysFSCharacterDevicesDirectory const& parent_directory, Device const& device, SysFSComponent const& pointed_component)
ErrorOr<NonnullLockRefPtr<SysFSSymbolicLinkDeviceComponent>> SysFSSymbolicLinkDeviceComponent::try_create(SysFSCharacterDevicesDirectory const& parent_directory, Device const& device, SysFSComponent const& pointed_component)
{
auto device_name = TRY(KString::formatted("{}:{}", device.major(), device.minor()));
return adopt_nonnull_ref_or_enomem(new (nothrow) SysFSSymbolicLinkDeviceComponent(parent_directory, move(device_name), device, pointed_component));
return adopt_nonnull_lock_ref_or_enomem(new (nothrow) SysFSSymbolicLinkDeviceComponent(parent_directory, move(device_name), device, pointed_component));
}
ErrorOr<NonnullRefPtr<SysFSSymbolicLinkDeviceComponent>> SysFSSymbolicLinkDeviceComponent::try_create(SysFSBlockDevicesDirectory const& parent_directory, Device const& device, SysFSComponent const& pointed_component)
ErrorOr<NonnullLockRefPtr<SysFSSymbolicLinkDeviceComponent>> SysFSSymbolicLinkDeviceComponent::try_create(SysFSBlockDevicesDirectory const& parent_directory, Device const& device, SysFSComponent const& pointed_component)
{
auto device_name = TRY(KString::formatted("{}:{}", device.major(), device.minor()));
return adopt_nonnull_ref_or_enomem(new (nothrow) SysFSSymbolicLinkDeviceComponent(parent_directory, move(device_name), device, pointed_component));
return adopt_nonnull_lock_ref_or_enomem(new (nothrow) SysFSSymbolicLinkDeviceComponent(parent_directory, move(device_name), device, pointed_component));
}
SysFSSymbolicLinkDeviceComponent::SysFSSymbolicLinkDeviceComponent(SysFSCharacterDevicesDirectory const& parent_directory, NonnullOwnPtr<KString> major_minor_formatted_device_name, Device const& device, SysFSComponent const& pointed_component)

8
Kernel/FileSystem/SysFS/Subsystems/DeviceIdentifiers/SymbolicLinkDeviceComponent.h
View file

@ -17,12 +17,12 @@ namespace Kernel {
class SysFSDeviceIdentifiersDirectory;
class SysFSSymbolicLinkDeviceComponent final
: public SysFSSymbolicLink
, public Weakable<SysFSSymbolicLinkDeviceComponent> {
, public LockWeakable<SysFSSymbolicLinkDeviceComponent> {
friend class SysFSComponentRegistry;
public:
static ErrorOr<NonnullRefPtr<SysFSSymbolicLinkDeviceComponent>> try_create(SysFSCharacterDevicesDirectory const& parent_directory, Device const& device, SysFSComponent const& pointed_component);
static ErrorOr<NonnullRefPtr<SysFSSymbolicLinkDeviceComponent>> try_create(SysFSBlockDevicesDirectory const& parent_directory, Device const& device, SysFSComponent const& pointed_component);
static ErrorOr<NonnullLockRefPtr<SysFSSymbolicLinkDeviceComponent>> try_create(SysFSCharacterDevicesDirectory const& parent_directory, Device const& device, SysFSComponent const& pointed_component);
static ErrorOr<NonnullLockRefPtr<SysFSSymbolicLinkDeviceComponent>> try_create(SysFSBlockDevicesDirectory const& parent_directory, Device const& device, SysFSComponent const& pointed_component);
virtual StringView name() const override { return m_major_minor_formatted_device_name->view(); }
bool is_block_device() const { return m_block_device; }
@ -31,7 +31,7 @@ private:
SysFSSymbolicLinkDeviceComponent(SysFSCharacterDevicesDirectory const& parent_directory, NonnullOwnPtr<KString> major_minor_formatted_device_name, Device const&, SysFSComponent const& pointed_component);
SysFSSymbolicLinkDeviceComponent(SysFSBlockDevicesDirectory const& parent_directory, NonnullOwnPtr<KString> major_minor_formatted_device_name, Device const&, SysFSComponent const& pointed_component);
IntrusiveListNode<SysFSSymbolicLinkDeviceComponent, NonnullRefPtr<SysFSSymbolicLinkDeviceComponent>> m_list_node;
IntrusiveListNode<SysFSSymbolicLinkDeviceComponent, NonnullLockRefPtr<SysFSSymbolicLinkDeviceComponent>> m_list_node;
bool const m_block_device { false };
NonnullOwnPtr<KString> m_major_minor_formatted_device_name;
};