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: Thu, 13 Oct 2011 08:26:35 +0000 (UTC)

 Author: qingli
 Date: Thu Oct 13 08:26:23 2011
 New Revision: 226333
 URL: http://svn.freebsd.org/changeset/base/226333
 
 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@
   Approved by:	re (kib)
 
 Modified:
   stable/9/sys/netinet/in.c
 Directory Properties:
   stable/9/sys/   (props changed)
   stable/9/sys/amd64/include/xen/   (props changed)
   stable/9/sys/boot/   (props changed)
   stable/9/sys/boot/i386/efi/   (props changed)
   stable/9/sys/boot/ia64/efi/   (props changed)
   stable/9/sys/boot/ia64/ski/   (props changed)
   stable/9/sys/boot/powerpc/boot1.chrp/   (props changed)
   stable/9/sys/boot/powerpc/ofw/   (props changed)
   stable/9/sys/cddl/contrib/opensolaris/   (props changed)
   stable/9/sys/conf/   (props changed)
   stable/9/sys/contrib/dev/acpica/   (props changed)
   stable/9/sys/contrib/octeon-sdk/   (props changed)
   stable/9/sys/contrib/pf/   (props changed)
   stable/9/sys/contrib/x86emu/   (props changed)
 
 Modified: stable/9/sys/netinet/in.c
 ==============================================================================
 --- stable/9/sys/netinet/in.c	Thu Oct 13 03:21:48 2011	(r226332)
 +++ stable/9/sys/netinet/in.c	Thu Oct 13 08:26:23 2011	(r226333)
 @@ -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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