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refactor(net): 将 NapiManager 的锁机制改为 lock_irqsave #1525

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Merged
fslongjin merged 1 commit into from
Dec 21, 2025
+3 −1
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refactor(net): 将 NapiManager 的锁机制改为 lock_irqsave #1525

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4 changes: 3 additions & 1 deletion kernel/src/driver/net/napi.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -211,7 +211,9 @@ impl NapiManager {
}

pub fn inner(&self) -> SpinLockGuard<'_, NapiManagerInner> {
self.inner.lock()
// 必须使用 lock_irqsave() 关闭中断，因为 napi_schedule() 可能在中断上下文中被调用
// 如果使用普通的 lock()，当内核线程持有锁时发生中断，中断处理程序试图获取同一把锁会死锁
self.inner.lock_irqsave()
}

pub fn wait_queue(&self) -> &WaitQueue {
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