> On Sun, Jun 03, 2001 at 09:22:13AM -0700, Jason R Thorpe wrote:
> 
>  > #define	KPRINTF_SLOCK_ACQUIRE(alp) \
>  > do { \
>  > 	struct cpu_info *__ci = curcpu(); \
>  > 	\
>  > 	while (__cpu_simple_lock_try(&(alp)->lock_data) == 0) { \
>  > 		if (__ci->ci_ipis_pending) \
>  > 			/* go process them */ ; \
>  > 	} \
>  > } while (/*CONSTCOND*/0)
> 
> Hm, although, Ross and Bill have commented to me that "this probably isn't
> confined to the kernel printf slock".  You may actually simply want to put
> the IPI check directly in the __cpu_simple_lock() implementation.
> 
The only IPI I have to check for is the kernel printf IPI. I think
it would be a bad idea to try to handle other IPIs.

-- Ragge