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Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T>

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We now use AK::Error and AK::ErrorOr<T> in both kernel and userspace!
This was a slightly tedious refactoring that took a long time, so it's
not unlikely that some bugs crept in.

Nevertheless, it does pass basic functionality testing, and it's just
real nice to finally see the same pattern in all contexts. :^)
This commit is contained in:
Andreas Kling 2021-11-08 00:51:39 +01:00
parent 7ee10c6926
commit 79fa9765ca
262 changed files with 2415 additions and 2600 deletions
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14
Kernel/Memory/AnonymousVMObject.h
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@ -18,12 +18,12 @@ class AnonymousVMObject final : public VMObject {
public:
virtual ~AnonymousVMObject() override;
static KResultOr<NonnullRefPtr<AnonymousVMObject>> try_create_with_size(size_t, AllocationStrategy);
static KResultOr<NonnullRefPtr<AnonymousVMObject>> try_create_for_physical_range(PhysicalAddress paddr, size_t size);
static KResultOr<NonnullRefPtr<AnonymousVMObject>> try_create_with_physical_pages(Span<NonnullRefPtr<PhysicalPage>>);
static KResultOr<NonnullRefPtr<AnonymousVMObject>> try_create_purgeable_with_size(size_t, AllocationStrategy);
static KResultOr<NonnullRefPtr<AnonymousVMObject>> try_create_physically_contiguous_with_size(size_t);
virtual KResultOr<NonnullRefPtr<VMObject>> try_clone() override;
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_with_size(size_t, AllocationStrategy);
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_for_physical_range(PhysicalAddress paddr, size_t size);
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_with_physical_pages(Span<NonnullRefPtr<PhysicalPage>>);
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_purgeable_with_size(size_t, AllocationStrategy);
static ErrorOr<NonnullRefPtr<AnonymousVMObject>> try_create_physically_contiguous_with_size(size_t);
virtual ErrorOr<NonnullRefPtr<VMObject>> try_clone() override;
[[nodiscard]] NonnullRefPtr<PhysicalPage> allocate_committed_page(Badge<Region>);
PageFaultResponse handle_cow_fault(size_t, VirtualAddress);
@ -34,7 +34,7 @@ public:
bool is_purgeable() const { return m_purgeable; }
bool is_volatile() const { return m_volatile; }
KResult set_volatile(bool is_volatile, bool& was_purged);
ErrorOr<void> set_volatile(bool is_volatile, bool& was_purged);
size_t purge();