svn commit: r186710 - user/kmacy/HEAD_fast_net/sys/kern

[John Baldwin]

On Friday 02 January 2009 9:00:10 pm Kip Macy wrote:
> Author: kmacy
> Date: Sat Jan  3 02:00:10 2009
> New Revision: 186710
> URL: http://svn.freebsd.org/changeset/base/186710
>
> Log:
>   convert name cache lock to rwlock for lookups

I think you need to restart the lookup if you fail an upgrade.  I've had a 
patch to do that for years (literally) but it didn't help performance in 
earlier tests by kris at .  You can find one that does the restarts at 
www.freebsd.org/~jhb/namei_rwlock.patch.

-- 
John Baldwin