If the dma-usable area changes after autoconf, recompute the buffer count and invoke bufadjust() accordingly. Similar to what sysctl kern.bufcachepercent does.
If the dma-usable area changes after autoconf, recompute the buffer count and
invoke bufadjust() accordingly. Similar to what sysctl kern.bufcachepercent
does.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars