From b296414c6222eecb519ad4e784e6ff7ca7821452 Mon Sep 17 00:00:00 2001
From: Konstantin Belousov <kib@FreeBSD.org>
Date: Tue, 20 Sep 2011 21:53:26 +0000
Subject: [PATCH] Use nowait sync request for a vnode when doing softdep
 cleanup. We possibly own the unrelated vnode lock, doing waiting sync causes
 deadlocks.

Reported and tested by:	pho
Approved by:	re (bz)
---
 sys/ufs/ffs/ffs_softdep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/ufs/ffs/ffs_softdep.c b/sys/ufs/ffs/ffs_softdep.c
index 6cf033a43293..6c0e7d758cb6 100644
--- a/sys/ufs/ffs/ffs_softdep.c
+++ b/sys/ufs/ffs/ffs_softdep.c
@@ -12648,7 +12648,7 @@ retry:
 				MNT_ILOCK(mp);
 				continue;
 			}
-			(void) ffs_syncvnode(lvp, MNT_WAIT);
+			(void) ffs_syncvnode(lvp, MNT_NOWAIT);
 			vput(lvp);
 			MNT_ILOCK(mp);
 		}