The following reply was made to PR kern/158686; it has been noted by GNATS.

From: dfil...@freebsd.org (dfilter service)
To: bug-follo...@freebsd.org
Cc:  
Subject: Re: kern/158686: commit references a PR
Date: Thu,  7 Jun 2012 19:47:02 +0000 (UTC)

 Author: trociny
 Date: Thu Jun  7 19:46:46 2012
 New Revision: 236724
 URL: http://svn.freebsd.org/changeset/base/236724
 
 Log:
   Add VIMAGE support to if_tap.
   
   PR:          kern/152047, kern/158686
   Submitted by:        Daan Vreeken <pa4dan Bliksem.VEHosting.nl>
   MFC after:   1 week
 
 Modified:
   head/sys/net/if_tap.c
 
 Modified: head/sys/net/if_tap.c
 ==============================================================================
 --- head/sys/net/if_tap.c      Thu Jun  7 19:19:12 2012        (r236723)
 +++ head/sys/net/if_tap.c      Thu Jun  7 19:46:46 2012        (r236724)
 @@ -42,6 +42,7 @@
  #include <sys/conf.h>
  #include <sys/fcntl.h>
  #include <sys/filio.h>
 +#include <sys/jail.h>
  #include <sys/kernel.h>
  #include <sys/malloc.h>
  #include <sys/mbuf.h>
 @@ -66,6 +67,7 @@
  #include <net/if_dl.h>
  #include <net/route.h>
  #include <net/if_types.h>
 +#include <net/vnet.h>
  
  #include <netinet/in.h>
  
 @@ -214,6 +216,7 @@ tap_destroy(struct tap_softc *tp)
        KASSERT(!(tp->tap_flags & TAP_OPEN),
                ("%s flags is out of sync", ifp->if_xname));
  
 +      CURVNET_SET(ifp->if_vnet);
        seldrain(&tp->tap_rsel);
        knlist_destroy(&tp->tap_rsel.si_note);
        destroy_dev(tp->tap_dev);
 @@ -222,6 +225,7 @@ tap_destroy(struct tap_softc *tp)
  
        mtx_destroy(&tp->tap_mtx);
        free(tp, M_TAP);
 +      CURVNET_RESTORE();
  }
  
  static void
 @@ -363,6 +367,7 @@ tapclone(void *arg, struct ucred *cred, 
        if (unit == -1)
                append_unit = 1;
  
 +      CURVNET_SET(CRED_TO_VNET(cred));
        /* find any existing device, or allocate new unit number */
        i = clone_create(&tapclones, &tap_cdevsw, &unit, dev, extra);
        if (i) {
 @@ -381,6 +386,7 @@ tapclone(void *arg, struct ucred *cred, 
        }
  
        if_clone_create(name, namelen, NULL);
 +      CURVNET_RESTORE();
  } /* tapclone */
  
  
 @@ -521,6 +527,7 @@ tapclose(struct cdev *dev, int foo, int 
  
        /* junk all pending output */
        mtx_lock(&tp->tap_mtx);
 +      CURVNET_SET(ifp->if_vnet);
        IF_DRAIN(&ifp->if_snd);
  
        /*
 @@ -544,6 +551,8 @@ tapclose(struct cdev *dev, int foo, int 
        }
  
        if_link_state_change(ifp, LINK_STATE_DOWN);
 +      CURVNET_RESTORE();
 +
        funsetown(&tp->tap_sigio);
        selwakeuppri(&tp->tap_rsel, PZERO+1);
        KNOTE_LOCKED(&tp->tap_rsel.si_note, 0);
 @@ -945,7 +954,9 @@ tapwrite(struct cdev *dev, struct uio *u
        }
  
        /* Pass packet up to parent. */
 +      CURVNET_SET(ifp->if_vnet);
        (*ifp->if_input)(ifp, m);
 +      CURVNET_RESTORE();
        ifp->if_ipackets ++; /* ibytes are counted in parent */
  
        return (0);
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