KATO Takenori 747e915757 Avoid `lock against myself' panic by following operation: ... # mount -t union (or null) dir1 dir2 # mount -t union (or null) dir2 dir1 The function namei in union_mount calls union_root. The upper vnode has been already locked and vn_lock in union_root causes above panic. Add printf's included in `#ifdef DIAGNOSTIC' for EDEADLK cases.		1997-04-19 06:04:13 +00:00
..
null.h	Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not	1997-02-22 09:48:43 +00:00
null_subr.c	Use NULLVP instead of NULL.	1997-04-17 11:17:30 +00:00
null_vfsops.c	Avoid `lock against myself' panic by following operation:	1997-04-19 06:04:13 +00:00
null_vnops.c	Use NULLVP instead of NULL.	1997-04-17 11:17:30 +00:00