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: Fri,  7 Oct 2011 18:01:51 +0000 (UTC)

 Author: qingli
 Date: Fri Oct  7 18:01:34 2011
 New Revision: 226114
 URL: http://svn.freebsd.org/changeset/base/226114
 
 Log:
   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@
   MFC after:	3 days
 
 Modified:
   head/sys/netinet/in.c
 
 Modified: head/sys/netinet/in.c
 ==============================================================================
 --- head/sys/netinet/in.c	Fri Oct  7 16:39:03 2011	(r226113)
 +++ head/sys/netinet/in.c	Fri Oct  7 18:01:34 2011	(r226114)
 @@ -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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