Kevin Hilman writes:
> rwsems can be used with IRQs disabled, particularily in early boot
> before IRQs are enabled. Currently the spin_unlock_irq() usage in the
> slow-path will unconditionally enable interrupts and cause problems
> early in boot where interrupts are not yet initialized or enab
rwsems can be used with IRQs disabled, particularily in early boot
before IRQs are enabled. Currently the spin_unlock_irq() usage in the
slow-path will unconditionally enable interrupts and cause problems
early in boot where interrupts are not yet initialized or enabled.
This patch uses save/rest
