kern/159601: commit references a PR

[dfilter service]

The following reply was made to PR kern/159601; it has been noted by GNATS.

From: dfilter at FreeBSD.ORG (dfilter service)
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: kern/159601: commit references a PR
Date: Mon, 10 Oct 2011 21:41:43 +0000 (UTC)

 Author: qingli
 Date: Mon Oct 10 21:41:34 2011
 New Revision: 226237
 URL: http://svn.freebsd.org/changeset/base/226237
 
 Log:
   MFC 226114
   
   Remove the reference held on the loopback route when the interface
   address is being deleted. Only the last reference holder deletes the
   loopback route. All other delete operations just clear the IFA_RTSELF
   flag.
   
   PR:		kern/159601
   Submitted by:	pluknet
   Reviewed by:	discussed on net@
 
 Modified:
   stable/8/sys/netinet/in.c
 Directory Properties:
   stable/8/sys/   (props changed)
   stable/8/sys/amd64/include/xen/   (props changed)
   stable/8/sys/cddl/contrib/opensolaris/   (props changed)
   stable/8/sys/contrib/dev/acpica/   (props changed)
   stable/8/sys/contrib/pf/   (props changed)
 
 Modified: stable/8/sys/netinet/in.c
 ==============================================================================
 --- stable/8/sys/netinet/in.c	Mon Oct 10 21:38:19 2011	(r226236)
 +++ stable/8/sys/netinet/in.c	Mon Oct 10 21:41:34 2011	(r226237)
 @@ -1126,8 +1126,10 @@ in_scrubprefix(struct in_ifaddr *target,
  			RT_LOCK(ia_ro.ro_rt);
  			if (ia_ro.ro_rt->rt_refcnt <= 1)
  				freeit = 1;
 -			else
 +			else if (flags & LLE_STATIC) {
  				RT_REMREF(ia_ro.ro_rt);
 +				target->ia_flags &= ~IFA_RTSELF;
 +			}
  			RTFREE_LOCKED(ia_ro.ro_rt);
  		}
  		if (freeit && (flags & LLE_STATIC)) {
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