Module Name:	src
Committed By:	perseant
Date:		Mon Mar 29 21:51:38 UTC 1999

Modified Files:
	src/sys/ufs/lfs: lfs_inode.c lfs_segment.c
Log Message:
lfs_truncate calls vinvalbuf to invalidate all currently-hald buffers, which
in turn forces a flush of the vnode, whether or not it is involved in a dirop.
(This can happen during a remove or rmdir, when the directory is shrunk.)
Because of the nature of dirops, however, flushing a vnode involved in a dirop
is disallowed (and was marked with a panic).  This patch has lfs_truncate
call a specialized vinvalbuf that only invalidates buffers following the new
end-of-file, and thus does not require a flush.  Also the panic is demoted,
in case I missed any other path to lfs_vflush.