hannken 8c80da52ef Change tmpfs to vcache.
- Use tmpfs node address as key.
- Remove tn_vlock, field tn_vnode now protected by vcache.
- Add a hold count to tmpfs node to prevent nodes from disappearing
  while tmpfs_fhtovp() trys to vcache_get() them.  Last holder
  destroys reclaimed nodes.
- Remove the now unneeded parent unlock/lock for lookup of '..'.
2015-07-06 10:07:12 +00:00
..
2015-07-06 05:55:37 +00:00
2015-07-06 10:07:12 +00:00