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Add a VMO pointer to VNode.

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This way, if anyone tries to map an already mapped file, we share the VMO.
This commit is contained in:
Andreas Kling 2018-11-08 15:39:26 +01:00
parent 862f108cb5
commit 3b2dcd5929
8 changed files with 59 additions and 10 deletions
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4
VirtualFileSystem/VirtualFileSystem.h
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@ -65,12 +65,16 @@ public:
VirtualFileSystem* vfs() { return m_vfs; }
const VirtualFileSystem* vfs() const { return m_vfs; }
void* vmo() { return m_vmo; }
void set_vmo(void* vmo) { m_vmo = vmo; }
private:
friend class VirtualFileSystem;
VirtualFileSystem* m_vfs { nullptr };
unsigned retainCount { 0 };
CharacterDevice* m_characterDevice { nullptr };
mutable InodeMetadata m_cachedMetadata;
void* m_vmo { nullptr };
};
static VirtualFileSystem& the() PURE;