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Kernel: Add locks around RangeAllocator

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We need to keep multiple processors from changing it at the same time.
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Tom 2020-10-31 17:12:23 -06:00 • committed by Andreas Kling
parent 66f46d03e4
commit 2b25a89ab5
2 changed files with 10 additions and 0 deletions
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3
Kernel/VM/RangeAllocator.h
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@ -29,6 +29,7 @@
#include <AK/String.h>
#include <AK/Traits.h>
#include <AK/Vector.h>
#include <Kernel/SpinLock.h>
#include <Kernel/VirtualAddress.h>
namespace Kernel {
@ -92,6 +93,7 @@ public:
bool contains(const Range& range) const
{
ScopedSpinLock lock(m_lock);
return m_total_range.contains(range);
}
@ -100,6 +102,7 @@ private:
Vector<Range> m_available_ranges;
Range m_total_range;
mutable SpinLock<u8> m_lock;
};
inline const LogStream& operator<<(const LogStream& stream, const Range& value)