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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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26
Kernel/Memory/Region.h
View file

@ -10,9 +10,9 @@
#include <AK/EnumBits.h>
#include <AK/IntrusiveList.h>
#include <AK/IntrusiveRedBlackTree.h>
#include <AK/Weakable.h>
#include <Kernel/Forward.h>
#include <Kernel/KString.h>
#include <Kernel/Library/LockWeakable.h>
#include <Kernel/Memory/PageFaultResponse.h>
#include <Kernel/Memory/VirtualRange.h>
#include <Kernel/Sections.h>
@ -30,7 +30,7 @@ enum class ShouldFlushTLB {
};
class Region final
: public Weakable<Region> {
: public LockWeakable<Region> {
friend class AddressSpace;
friend class MemoryManager;
friend class RegionTree;
@ -54,9 +54,9 @@ public:
Yes,
};
static ErrorOr<NonnullOwnPtr<Region>> try_create_user_accessible(VirtualRange const&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable, bool shared);
static ErrorOr<NonnullOwnPtr<Region>> try_create_user_accessible(VirtualRange const&, NonnullLockRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable, bool shared);
static ErrorOr<NonnullOwnPtr<Region>> create_unbacked();
static ErrorOr<NonnullOwnPtr<Region>> create_unplaced(NonnullRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable = Cacheable::Yes, bool shared = false);
static ErrorOr<NonnullOwnPtr<Region>> create_unplaced(NonnullLockRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable = Cacheable::Yes, bool shared = false);
~Region();
@ -80,7 +80,7 @@ public:
[[nodiscard]] VMObject const& vmobject() const { return *m_vmobject; }
[[nodiscard]] VMObject& vmobject() { return *m_vmobject; }
void set_vmobject(NonnullRefPtr<VMObject>&&);
void set_vmobject(NonnullLockRefPtr<VMObject>&&);
[[nodiscard]] bool is_shared() const { return m_shared; }
void set_shared(bool shared) { m_shared = shared; }
@ -152,8 +152,8 @@ public:
return size() / PAGE_SIZE;
}
RefPtr<PhysicalPage> physical_page(size_t index) const;
RefPtr<PhysicalPage>& physical_page_slot(size_t index);
LockRefPtr<PhysicalPage> physical_page(size_t index) const;
LockRefPtr<PhysicalPage>& physical_page_slot(size_t index);
[[nodiscard]] size_t offset_in_vmobject() const
{
@ -196,10 +196,10 @@ public:
private:
Region();
Region(NonnullRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString>, Region::Access access, Cacheable, bool shared);
Region(VirtualRange const&, NonnullRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString>, Region::Access access, Cacheable, bool shared);
Region(NonnullLockRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString>, Region::Access access, Cacheable, bool shared);
Region(VirtualRange const&, NonnullLockRefPtr<VMObject>, size_t offset_in_vmobject, OwnPtr<KString>, Region::Access access, Cacheable, bool shared);
[[nodiscard]] bool remap_vmobject_page(size_t page_index, NonnullRefPtr<PhysicalPage>);
[[nodiscard]] bool remap_vmobject_page(size_t page_index, NonnullLockRefPtr<PhysicalPage>);
void set_access_bit(Access access, bool b)
{
@ -214,12 +214,12 @@ private:
[[nodiscard]] PageFaultResponse handle_zero_fault(size_t page_index, PhysicalPage& page_in_slot_at_time_of_fault);
[[nodiscard]] bool map_individual_page_impl(size_t page_index);
[[nodiscard]] bool map_individual_page_impl(size_t page_index, RefPtr<PhysicalPage>);
[[nodiscard]] bool map_individual_page_impl(size_t page_index, LockRefPtr<PhysicalPage>);
RefPtr<PageDirectory> m_page_directory;
LockRefPtr<PageDirectory> m_page_directory;
VirtualRange m_range;
size_t m_offset_in_vmobject { 0 };
RefPtr<VMObject> m_vmobject;
LockRefPtr<VMObject> m_vmobject;
OwnPtr<KString> m_name;
u8 m_access { Region::None };
bool m_shared : 1 { false };