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Kernel: Store VMObject physical pages in a FixedArray

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Let's enforce the invariant that VMObjects don't shrink or grow by
storing the pages in a FixedArray.
This commit is contained in:
Andreas Kling 2021-07-11 17:38:28 +02:00
parent 373b8d7cfa
commit 59049ae4b7
3 changed files with 6 additions and 11 deletions
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6
Kernel/VM/AnonymousVMObject.cpp
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@ -117,11 +117,11 @@ AnonymousVMObject::AnonymousVMObject(PhysicalPage& page)
}
AnonymousVMObject::AnonymousVMObject(NonnullRefPtrVector<PhysicalPage> physical_pages)
: VMObject()
: VMObject(physical_pages.size())
, m_volatile_ranges_cache({ 0, page_count() })
{
for (auto& page : physical_pages) {
m_physical_pages.append(page);
for (size_t i = 0; i < physical_pages.size(); ++i) {
m_physical_pages[i] = physical_pages[i];
}
}