Mateusz Guzik 2740551545 nullfs: stop special-casing directories in null_vptocnp
The previous code was forcing an expensive walk in vop_stdvptocnp,
which was causing performance issues on highly contended zfs.

No objections:	kib
MFC after:	2 weeks
2016-09-06 21:22:03 +00:00
..
2014-10-15 13:22:33 +00:00