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Kernel: Add safe atomic functions

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This allows us to perform atomic operations on potentially unsafe
user space pointers.
This commit is contained in:
Tom 2020-12-19 18:48:56 -07:00 • committed by Andreas Kling
parent 992f513ad2
commit b17a889320
10 changed files with 573 additions and 166 deletions
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5
AK/Atomic.h
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@ -31,6 +31,11 @@
namespace AK {
static inline void atomic_thread_fence(MemoryOrder order) noexcept
{
return __atomic_thread_fence(order);
}
template<typename T>
static inline T atomic_exchange(volatile T* var, T desired, MemoryOrder order = memory_order_seq_cst) noexcept
{