Subject: Re: NAMECACHE_ENTER_REVERSE (Re: CVS commit: src/sys/kern)
To: None <>
From: Joerg Sonnenberger <>
List: tech-kern
Date: 11/29/2006 10:15:00
On Wed, Nov 29, 2006 at 05:54:06PM +0900, YAMAMOTO Takashi wrote:
> although very simple things like a nullfs-equivalent might be easier
> to implement with it, i don't see how it could help layered filesystems
> in general.  can you explain?

The locking in general should become much easier as locking the
namespace in an operation on a tree as oppossed to possible cycle graphs
for the vnode topology is easier to guaranty dead-lock freeness.