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Kernel: Merge PurgeableVMObject into AnonymousVMObject

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This implements memory commitments and lazy-allocation of committed
memory.
This commit is contained in:
Tom 2020-09-05 15:52:14 -06:00 • committed by Andreas Kling
parent b2a52f6208
commit 476f17b3f1
35 changed files with 937 additions and 564 deletions
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10
Kernel/SharedBuffer.h
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@ -28,8 +28,8 @@
#include <AK/OwnPtr.h>
#include <AK/WeakPtr.h>
#include <Kernel/VM/AnonymousVMObject.h>
#include <Kernel/VM/MemoryManager.h>
#include <Kernel/VM/PurgeableVMObject.h>
namespace Kernel {
@ -48,7 +48,7 @@ private:
};
public:
SharedBuffer(int id, NonnullRefPtr<PurgeableVMObject>&& vmobject)
SharedBuffer(int id, NonnullRefPtr<AnonymousVMObject>&& vmobject)
: m_shbuf_id(id)
, m_vmobject(move(vmobject))
{
@ -82,15 +82,15 @@ public:
NotMapped
};
SetVolatileError set_volatile_all(bool is_volatile, bool& was_purged);
PurgeableVMObject& vmobject() { return m_vmobject; }
const PurgeableVMObject& vmobject() const { return m_vmobject; }
AnonymousVMObject& vmobject() { return m_vmobject; }
const AnonymousVMObject& vmobject() const { return m_vmobject; }
int id() const { return m_shbuf_id; }
private:
int m_shbuf_id { -1 };
bool m_writable { true };
bool m_global { false };
NonnullRefPtr<PurgeableVMObject> m_vmobject;
NonnullRefPtr<AnonymousVMObject> m_vmobject;
Vector<Reference, 2> m_refs;
unsigned m_total_refs { 0 };
};