> > Module Name:	src
> > Committed By:	yamt
> > Date:		Sat Jun 19 06:17:15 UTC 2004
> > 
> > Modified Files:
> > 	src/sys/miscfs/genfs: layer_vnops.c
> > 
> > Log Message:
> > layer_islocked: check a status of the lower vnode as well.
> 
> Actually I think it is about time we rip out the shadow locking that
> layered file systems are doing. When it was added, a number of file
> systems (nfs, kernfs, procfs) didn't do real node locking; they used
> genfs_nolock(). Now there are very few uses of genfs_nolock(), so I think
> we can just remove it.

what's the "shadow locking" do you mean?

YAMAMOTO Takashi