- Replace v_flag with v_iflag and v_vflag

 - v_vflag is protected by the vnode lock and is used when synchronization
   with VOP calls is needed.
 - v_iflag is protected by interlock and is used for dealing with vnode
   management issues.  These flags include X/O LOCK, FREE, DOOMED, etc.
 - All accesses to v_iflag and v_vflag have either been locked or marked with
   mp_fixme's.
 - Many ASSERT_VOP_LOCKED calls have been added where the locking was not
   clear.
 - Many functions in vfs_subr.c were restructured to provide for stronger
   locking.

Idea stolen from:	BSD/OS

2 files changed, 3 insertions, 2 deletions

diff --git a/sys/compat/linux/linux_getcwd.c b/sys/compat/linux/linux_getcwd.c
index 44079b9..2773562 100644
--- a/sys/compat/linux/linux_getcwd.c
+++ b/sys/compat/linux/linux_getcwd.c
@@ -351,7 +351,7 @@ linux_getcwd_common (lvp, rvp, bpp, bufp, limit, flags, td)
 		/*
 		 * step up if we're a covered vnode..
 		 */
-		while (lvp->v_flag & VROOT) {
+		while (lvp->v_vflag & VV_ROOT) {
 			struct vnode *tvp;
 
 			if (lvp == rvp)
diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c
index 7eebf69..d6259bc 100644
--- a/sys/compat/linux/linux_misc.c
+++ b/sys/compat/linux/linux_misc.c
@@ -381,8 +381,9 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args)
 		goto cleanup;
 	}
 
+	mp_fixme("Unlocked vflags access.");
 	/* prevent more writers */
-	vp->v_flag |= VTEXT;
+	vp->v_vflag |= VV_TEXT;
 
 	/*
 	 * Check if file_offset page aligned. Currently we cannot handle