Re: Avoid grabbing the kernel lock in pool backend allocator

[Alexey Suslikov]

Mark Kettenis <mark.kettenis <at> xs4all.nl> writes:

> RCS file: /cvs/src/sys/kern/subr_pool.c,v

<snip>

>       kd.kd_waitok = ISSET(flags, PR_WAITOK);

<snip>

> +     /* 
> +      * XXX Until we can call msleep(9) without holding the kernel
> +      * lock.
> +      */
> +     if (ISSET(flags, PR_WAITOK))

It there a reason to re-evaluate ISSET while it is already de-normalized
into kd.kd_waitok?