svn commit: r314673 - stable/11/sys/kern

[Bryan Drewery]

Author: bdrewery
Date: Sat Mar  4 18:07:30 2017
New Revision: 314673
URL: https://svnweb.freebsd.org/changeset/base/314673

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

Modified:
  stable/11/sys/kern/uipc_mqueue.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/kern/uipc_mqueue.c
==============================================================================
--- stable/11/sys/kern/uipc_mqueue.c	Sat Mar  4 17:34:36 2017	(r314672)
+++ stable/11/sys/kern/uipc_mqueue.c	Sat Mar  4 18:07:30 2017	(r314673)
@@ -714,7 +714,9 @@ 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);
 }