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bccc2f7b4c
uic->lock is protecting the interrupt controller hardware. This lock can not 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. Reported-by: Darcy L. Watkins <dwatkins@tranzeo.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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