Re: kern/28448 (stackable filesystems locking breakage when looking up DOTDOT)

[David Holland <dholland-bugs%netbsd.org@localhost>]

On Sat, Jan 03, 2009 at 02:32:13PM +0900, YAMAMOTO Takashi wrote:
 > locks can be shared only when the lower vnode exports them
 > for the upper layer.  ie. a layered filesystem can't assume that
 > it can share locks.

That sounds like a problem... I'll keep it in mind.

 > > (although note that I'm planning to abolish the dotdot-dance)
 > 
 > good to hear.  thanks for working on it.
 > how will you do so?

See http://mail-index.netbsd.org/tech-kern/2008/03/19/msg000653.html
and following.

(Which are turning out to be much longer-range plans than I'd
intended... but that's another story.)

-- 
David A. Holland
dholland%netbsd.org@localhost