IRQL
- 网络中断优先级;请求级;中断请求级;中断级;求级别
IRQL-
Callers of CONTAINING_RECORD can be running at any IRQL as long as the structure is resident .
只要结构体驻留在内存，CONTAININGRECORD的调用程序（驱动）可以以任何中断优先级（IRQL）运行。
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Furthermore , no thread can preempt it to run another of these special routines because that other routine will run at the same IRQL .
另外，没有线程可以占先它来运行另一个这样的特殊程序，因为其他程序将运行于相同的IRQL。