genirq: Make sparse_lock a mutex

No callers from atomic regions. 

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2010-10-08 12:47:53 +02:00
commit a05a900a51