vfs megapatch 09 (not for the faint of heart)

[YONETANI Tomokazu]

On Sat, Oct 09, 2004 at 11:43:32PM -0700, Matthew Dillon wrote:
>     (This is really the second one, but I decided to synchronize the name
>     with my internal patch file names to avoid confusion).
> 
>     !!! All normal users not involved with testing the VFS code should be
>     using kernels based on the DragonFly_Stable tag and not mess with this
>     stuff !!!
> 
>     Here's mega patch 09, relative to HEAD.  This is not for the faint of
>     heart.
> 
> 	fetch http://leaf.dragonflybsd.org/~dillon/vfsx09.patch
> 
>     Known issues:
> 
> 	* Possible vnode/namecache deadlocks.
> 	* While most filesystems now use vp->v_lock, I haven't done a final
> 	  pass to make vp->v_lock mandatory and to clean up the few remaining
> 	  inode based locks (nwfs I think and other obscure filesystems).
> 	* NullFS gets confused when you hit a mount point in the underlying
> 	  filesystem.
> 	* Only UFS and NFS have been well tested

I saw this in /var/log/messages
Oct 13 00:14:12 gzl kernel: EXDEV case 1 0xcfc4e320 scsi
Oct 13 00:14:12 gzl last message repeated 4 times
Oct 13 00:15:14 gzl kernel: EXDEV case 1 0xcfc4ee60 scsi
Oct 13 00:15:22 gzl last message repeated 9 times
Oct 13 00:17:59 gzl kernel: EXDEV case 1 0xcfc4ee60 scsi
Oct 13 00:22:53 gzl last message repeated 19 times

while I was playing with build breakage:
$ export MAKEOBJDIRPREFIX=$HOME/obj
$ cd /sys/bus/cam/scsi
$ make -s obj && env ARCH=i386 make depend

Has this already been taken care of in HEAD?