[pnfs] CVS: nfsv4

[Rahul Iyer NetApp]

CVSROOT:	/cvs
Module name:	nfsv4
Changes by:	iyer at citi.umich.edu	2007/01/31 18:42:55

Modified files:
	cvs/pnfs/arch/i386/boot: bzImage 
	cvs/pnfs/arch/i386/boot/compressed: vmlinux.bin.gz 
	cvs/pnfs/fs/nfs: nfs4filelayout.h nfs4filelayoutdev.c nfs4proc.c 
	                 super.c 

Log message:
Calling unmount_pnfs_layoutdriver() in nfs4_kill_super(). Also added destroy
session code to destroy sessions on the dservers on unmount.