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

[pooka%NetBSD.org@localhost]

Synopsis: stackable filesystems locking breakage when looking up DOTDOT

State-Changed-From-To: open->feedback
State-Changed-By: pooka%narn.netbsd.org@localhost
State-Changed-When: Sat, 19 Jan 2008 18:35:38 +0200
State-Changed-Why:
I don't understand the problem.  There are two cases:

1) the lower layer exports a lock and there is no upper lock
2) the lower layer does not export a lock pointer, in which case the
   relock dance in the lower layer will not use the upper layer's
   locks

Either way I don't see a deadlock between the lower and upper layer.