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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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12
Kernel/Memory/MemoryManager.cpp
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@ -658,18 +658,12 @@ UNMAP_AFTER_INIT void MemoryManager::initialize(u32 cpu)
}
}
Region* MemoryManager::kernel_region_from_vaddr(VirtualAddress vaddr)
Region* MemoryManager::kernel_region_from_vaddr(VirtualAddress address)
{
if (is_user_address(vaddr))
if (is_user_address(address))
return nullptr;
SpinlockLocker lock(s_mm_lock);
SpinlockLocker tree_locker(MM.m_region_tree.get_lock());
auto* region = MM.m_region_tree.regions().find_largest_not_above(vaddr.get());
if (!region || !region->contains(vaddr))
return nullptr;
return region;
return MM.region_tree().find_region_containing(address);
}
Region* MemoryManager::find_user_region_from_vaddr_no_lock(AddressSpace& space, VirtualAddress vaddr)