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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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10
Kernel/Memory/Region.cpp
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@ -50,7 +50,7 @@ Region::~Region()
}
}
KResultOr<NonnullOwnPtr<Region>> Region::try_clone()
ErrorOr<NonnullOwnPtr<Region>> Region::try_clone()
{
VERIFY(Process::has_current());
@ -144,12 +144,12 @@ size_t Region::amount_shared() const
return bytes;
}
KResultOr<NonnullOwnPtr<Region>> Region::try_create_user_accessible(VirtualRange const& range, NonnullRefPtr<VMObject> vmobject, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable cacheable, bool shared)
ErrorOr<NonnullOwnPtr<Region>> Region::try_create_user_accessible(VirtualRange const& range, NonnullRefPtr<VMObject> vmobject, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable cacheable, bool shared)
{
return adopt_nonnull_own_or_enomem(new (nothrow) Region(range, move(vmobject), offset_in_vmobject, move(name), access, cacheable, shared));
}
KResultOr<NonnullOwnPtr<Region>> Region::try_create_kernel_only(VirtualRange const& range, NonnullRefPtr<VMObject> vmobject, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable cacheable)
ErrorOr<NonnullOwnPtr<Region>> Region::try_create_kernel_only(VirtualRange const& range, NonnullRefPtr<VMObject> vmobject, size_t offset_in_vmobject, OwnPtr<KString> name, Region::Access access, Cacheable cacheable)
{
return adopt_nonnull_own_or_enomem(new (nothrow) Region(range, move(vmobject), offset_in_vmobject, move(name), access, cacheable, false));
}
@ -253,7 +253,7 @@ void Region::set_page_directory(PageDirectory& page_directory)
m_page_directory = page_directory;
}
KResult Region::map(PageDirectory& page_directory, ShouldFlushTLB should_flush_tlb)
ErrorOr<void> Region::map(PageDirectory& page_directory, ShouldFlushTLB should_flush_tlb)
{
SpinlockLocker page_lock(page_directory.get_lock());
SpinlockLocker lock(s_mm_lock);
@ -274,7 +274,7 @@ KResult Region::map(PageDirectory& page_directory, ShouldFlushTLB should_flush_t
if (should_flush_tlb == ShouldFlushTLB::Yes)
MemoryManager::flush_tlb(m_page_directory, vaddr(), page_index);
if (page_index == page_count())
return KSuccess;
return {};
}
return ENOMEM;
}