Author: markj
Date: Wed Oct 25 17:20:18 2017
New Revision: 324992
URL: https://svnweb.freebsd.org/changeset/base/324992

Log:
  Make drain_output() use bufobj_wwait().
  
  No functional change intended.
  
  Reviewed by:  kib
  MFC after:    1 week
  Differential Revision:        https://reviews.freebsd.org/D12790

Modified:
  head/sys/ufs/ffs/ffs_softdep.c

Modified: head/sys/ufs/ffs/ffs_softdep.c
==============================================================================
--- head/sys/ufs/ffs/ffs_softdep.c      Wed Oct 25 16:01:19 2017        
(r324991)
+++ head/sys/ufs/ffs/ffs_softdep.c      Wed Oct 25 17:20:18 2017        
(r324992)
@@ -14289,25 +14289,14 @@ softdep_get_depcounts(struct mount *mp,
 
 /*
  * Wait for pending output on a vnode to complete.
- * Must be called with vnode lock and interlock locked.
- *
- * XXX: Should just be a call to bufobj_wwait().
  */
 static void
 drain_output(vp)
        struct vnode *vp;
 {
-       struct bufobj *bo;
 
-       bo = &vp->v_bufobj;
        ASSERT_VOP_LOCKED(vp, "drain_output");
-       ASSERT_BO_WLOCKED(bo);
-
-       while (bo->bo_numoutput) {
-               bo->bo_flag |= BO_WWAIT;
-               msleep((caddr_t)&bo->bo_numoutput,
-                   BO_LOCKPTR(bo), PRIBIO + 1, "drainvp", 0);
-       }
+       (void)bufobj_wwait(&vp->v_bufobj, 0, 0);
 }
 
 /*
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