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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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14
Kernel/SharedBuffer.cpp
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@ -229,14 +229,12 @@ auto SharedBuffer::set_volatile_all(bool is_volatile, bool& was_purged) -> SetVo
if (ref.pid == pid) {
if (Region* region = ref.region.unsafe_ptr()) {
switch (region->set_volatile(region->vaddr(), region->size(), is_volatile, was_purged)) {
case Region::SetVolatileError::Success:
if (!was_purged && was_purged)
klog() << "Region @ " << region->vaddr() << " - " << region->vaddr().offset(region->size()) << " was purged!";
return SetVolatileError::Success;
case Region::SetVolatileError::NotPurgeable:
return SetVolatileError::NotPurgeable;
case Region::SetVolatileError::OutOfMemory:
return SetVolatileError::OutOfMemory;
case Region::SetVolatileError::Success:
return SetVolatileError::Success;
case Region::SetVolatileError::NotPurgeable:
return SetVolatileError::NotPurgeable;
case Region::SetVolatileError::OutOfMemory:
return SetVolatileError::OutOfMemory;
}
}
}