Free the directory block buffer at the completion of a readdir, significantly reducing NTFS kernel memory usage. Without this the buffer is not usually freed until the vnode is reclaimed.
Free the directory block buffer at the completion of a readdir,
significantly reducing NTFS kernel memory usage. Without this the buffer
is not usually freed until the vnode is reclaimed.

Tested by Sebastian Neuper.

ok beck@ krw@

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