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Date: Wed, 16 Apr 1997 09:24:28 -0700 (PDT)
From: KATO Takenori <kato>
Message-Id: <199704161624.JAA06113@freefall.freebsd.org>
To: CVS-committers, cvs-all, cvs-sys
Subject: cvs commit:  src/sys/miscfs/union union_subr.c
Sender: owner-cvs-sys@FreeBSD.ORG
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Precedence: bulk

kato        97/04/16 09:24:27

  Modified:    sys/miscfs/union  union_subr.c
  Log:
  Do not set the uppervp to NULLVP in union_removed_upper.  If lowervp
  is NULLVP, union node will have neither uppervp nor lowervp.  This
  causes page fault trap.
  
  The union_removed_upper just remove union node from cache and it
  doesn't set uppervp to NULLVP.  Since union node is removed from
  cache, it will not be referenced.
  
  The code that remove union node from cache was copied from
  union_inactive.
  
  Revision  Changes    Path
  1.18      +16 -1     src/sys/miscfs/union/union_subr.c