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由 Thomas Gleixner 提交于
The cmci_discover_lock can be taken in atomic context (cpu bring up sequence) and therefore cannot be preempted on -rt. In mainline this change documents the low level nature of the lock - otherwise there's no functional difference. Lockdep and Sparse checking will work as usual. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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