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0d963fd641
VMObject already has an IntrusiveList of all the Regions that map it. We were keeping a counter in addition to this, and only using it in a single place to avoid iterating over the list in case it only had 1 entry. Simplify VMObject by removing this counter and always iterating the list even if there's only 1 entry. :^)
38 lines
743 B
C++
38 lines
743 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/VM/MemoryManager.h>
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#include <Kernel/VM/VMObject.h>
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namespace Kernel {
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VMObject::VMObject(VMObject const& other)
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: m_physical_pages(other.m_physical_pages)
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{
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MM.register_vmobject(*this);
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}
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VMObject::VMObject(size_t size)
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: m_physical_pages(ceil_div(size, static_cast<size_t>(PAGE_SIZE)))
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{
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MM.register_vmobject(*this);
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}
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VMObject::~VMObject()
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{
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{
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ScopedSpinLock lock(m_on_deleted_lock);
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for (auto& it : m_on_deleted)
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it->vmobject_deleted(*this);
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m_on_deleted.clear();
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}
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MM.unregister_vmobject(*this);
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VERIFY(m_regions.is_empty());
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}
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}
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