From f2649d6926e3bd168804fd4e84478ba7d58f2e0e Mon Sep 17 00:00:00 2001
From: jeff <jeff@FreeBSD.org>
Date: Sun, 5 Oct 2003 06:44:53 +0000
Subject: [PATCH]  - Check the XLOCK prior to inspecting v_data.

---
 sys/fs/msdosfs/msdosfs_vfsops.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/fs/msdosfs/msdosfs_vfsops.c b/sys/fs/msdosfs/msdosfs_vfsops.c
index c6e25d21ae19..fc0e35426102 100644
--- a/sys/fs/msdosfs/msdosfs_vfsops.c
+++ b/sys/fs/msdosfs/msdosfs_vfsops.c
@@ -790,6 +790,10 @@ loop:
 		nvp = TAILQ_NEXT(vp, v_nmntvnodes);
 
 		VI_LOCK(vp);
+		if (vp->v_iflag & VI_XLOCK) {
+			VI_UNLOCK(vp);
+			continue;
+		}
 		mtx_unlock(&mntvnode_mtx);
 		dep = VTODE(vp);
 		if (vp->v_type == VNON ||