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From: Bryan Drewery <bdrewery@FreeBSD.org>
Date: Sat, 4 Mar 2017 18:11:59 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r314674 - stable/10/sys/kern
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Author: bdrewery
Date: Sat Mar  4 18:11:59 2017
New Revision: 314674
URL: https://svnweb.freebsd.org/changeset/base/314674

Log:
  MFC r313909:
  
    Fix panic with unlocked vnode to vrecycle().

Modified:
  stable/10/sys/kern/uipc_mqueue.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/kern/uipc_mqueue.c
==============================================================================
--- stable/10/sys/kern/uipc_mqueue.c	Sat Mar  4 18:07:30 2017	(r314673)
+++ stable/10/sys/kern/uipc_mqueue.c	Sat Mar  4 18:11:59 2017	(r314674)
@@ -703,7 +703,9 @@ do_recycle(void *context, int pending __
 {
 	struct vnode *vp = (struct vnode *)context;
 
+	vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
 	vrecycle(vp);
+	VOP_UNLOCK(vp, 0);
 	vdrop(vp);
 }