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Kernel: Add RegionTree::find_region_containing(address or range)

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Let's encapsulate looking up regions so clients don't have to dig into
RegionTree internals.
This commit is contained in:
Andreas Kling 2022-04-05 12:07:45 +02:00
parent da7ea2556e
commit cfb61cbd54
4 changed files with 25 additions and 15 deletions
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7
Kernel/Memory/AddressSpace.cpp
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@ -250,12 +250,7 @@ Region* AddressSpace::find_region_from_range(VirtualRange const& range)
Region* AddressSpace::find_region_containing(VirtualRange const& range)
{
SpinlockLocker lock(m_lock);
SpinlockLocker tree_locker(m_region_tree.get_lock());
auto* candidate = m_region_tree.regions().find_largest_not_above(range.base().get());
if (!candidate)
return nullptr;
return (*candidate).range().contains(range) ? candidate : nullptr;
return m_region_tree.find_region_containing(range);
}
ErrorOr<Vector<Region*>> AddressSpace::find_regions_intersecting(VirtualRange const& range)