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Kernel: Fix race conditions processing async device requests
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parent
8177f2474b
commit
5ccc3637e3
4 changed files with 23 additions and 41 deletions
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@ -78,9 +78,14 @@ public:
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[[nodiscard]] RequestWaitResult wait(Time* = nullptr);
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void do_start(Badge<Device>)
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void do_start(ScopedSpinLock<SpinLock<u8>>&& requests_lock)
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{
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do_start();
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if (is_completed_result(m_result))
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return;
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m_result = Started;
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requests_lock.unlock();
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start();
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}
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void complete(RequestResult result);
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@ -137,17 +142,6 @@ private:
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void sub_request_finished(AsyncDeviceRequest&);
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void request_finished();
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void do_start()
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{
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{
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ScopedSpinLock lock(m_lock);
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if (is_completed_result(m_result))
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return;
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m_result = Started;
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}
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start();
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}
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bool in_target_context(const UserOrKernelBuffer& buffer) const
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{
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if (buffer.is_kernel_buffer())
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