diff options
Diffstat (limited to 'Kernel/VM/PhysicalPage.h')
-rw-r--r-- | Kernel/VM/PhysicalPage.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/Kernel/VM/PhysicalPage.h b/Kernel/VM/PhysicalPage.h index 92dcd20e24..498ce7dd03 100644 --- a/Kernel/VM/PhysicalPage.h +++ b/Kernel/VM/PhysicalPage.h @@ -39,29 +39,29 @@ class PhysicalPage { friend class PageDirectory; friend class VMObject; - MAKE_SLAB_ALLOCATED(PhysicalPage); - AK_MAKE_NONMOVABLE(PhysicalPage); - + MAKE_SLAB_ALLOCATED(PhysicalPage) public: PhysicalAddress paddr() const { return m_paddr; } void ref() { - m_ref_count.fetch_add(1, AK::memory_order_acq_rel); + ASSERT(m_ref_count); + ++m_ref_count; } void unref() { - if (m_ref_count.fetch_sub(1, AK::memory_order_acq_rel) == 1) { + ASSERT(m_ref_count); + if (!--m_ref_count) { if (m_may_return_to_freelist) - return_to_freelist(); + move(*this).return_to_freelist(); delete this; } } static NonnullRefPtr<PhysicalPage> create(PhysicalAddress, bool supervisor, bool may_return_to_freelist = true); - u32 ref_count() const { return m_ref_count.load(AK::memory_order_consume); } + u32 ref_count() const { return m_ref_count; } bool is_shared_zero_page() const; @@ -69,9 +69,9 @@ private: PhysicalPage(PhysicalAddress paddr, bool supervisor, bool may_return_to_freelist = true); ~PhysicalPage() {} - void return_to_freelist() const; + void return_to_freelist() &&; - Atomic<u32> m_ref_count { 1 }; + u32 m_ref_count { 1 }; bool m_may_return_to_freelist { true }; bool m_supervisor { false }; PhysicalAddress m_paddr; |