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b91c49364d
This makes it more symmetrical with adopt_own() (which is used to create a NonnullOwnPtr from the result of a naked new.)
36 lines
895 B
C++
36 lines
895 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/Heap/kmalloc.h>
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#include <Kernel/VM/MemoryManager.h>
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#include <Kernel/VM/PhysicalPage.h>
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namespace Kernel {
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NonnullRefPtr<PhysicalPage> PhysicalPage::create(PhysicalAddress paddr, bool supervisor, bool may_return_to_freelist)
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{
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return adopt_ref(*new PhysicalPage(paddr, supervisor, may_return_to_freelist));
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}
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PhysicalPage::PhysicalPage(PhysicalAddress paddr, bool supervisor, bool may_return_to_freelist)
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: m_may_return_to_freelist(may_return_to_freelist)
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, m_supervisor(supervisor)
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, m_paddr(paddr)
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{
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}
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void PhysicalPage::return_to_freelist() const
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{
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VERIFY((paddr().get() & ~PAGE_MASK) == 0);
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if (m_supervisor)
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MM.deallocate_supervisor_physical_page(*this);
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else
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MM.deallocate_user_physical_page(*this);
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}
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}
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