On Tue, 2013-05-07 at 15:15 +0800, tiejun.chen wrote:
> Could we simplify this as follows:
>
> +#define hard_irq_disable() do {\
> + __hard_irq_disable(); \
> + if (get_paca()->soft_enabled) { \
> + trace_h
On 05/07/2013 03:04 PM, Benjamin Herrenschmidt wrote:
If hard_irq_disable() is called while interrupts are already soft-disabled
(which is the most common case) all is already well.
However you can (and in some cases want) to call it while everything is
enabled (to make sure you don't get a lazy
