Matthew Dillon wrote:
:That's basically the equivalent of splhigh() and splx(): isn't that
:worse than blocking individual levels?
No, not really. We lose a little handling devices without DMA, but
that's basically just serial ports and it isn't worth the aggravation of
trying to manage per-interrupt masking. The per-interrupt (spl) masking
also doesn't work well in a SMP environment anyway.
-Matt
Matthew Dillon
<[EMAIL PROTECTED]>
Thanks for some explanation. However, it seems the crit_enter/exit only
works on one CPU in an SMP environment too (looking back at previous
posting in thread). Is there really a practical as well as conceptual
difference?
