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From: Ido Schimmel <idosch@idosch.org>
To: David Ahern <dsahern@gmail.com>
Cc: netdev@vger.kernel.org, davem@davemloft.net,
	roopa@cumulusnetworks.com, eric.dumazet@gmail.com,
	weiwan@google.com, kafai@fb.com, yoshfuji@linux-ipv6.org
Subject: Re: [PATCH RFC v2 net-next 19/21] net/ipv6: separate handling of FIB entries from dst based routes
Date: Sat, 24 Mar 2018 17:31:00 +0300	[thread overview]
Message-ID: <20180324143100.GA19895@splinter> (raw)
In-Reply-To: <20180319033622.16693-20-dsahern@gmail.com>

On Sun, Mar 18, 2018 at 08:36:20PM -0700, David Ahern wrote:
> @@ -405,18 +383,9 @@ static void ip6_dst_destroy(struct dst_entry *dst)
>  		rt->rt6i_idev = NULL;
>  		in6_dev_put(idev);
>  	}
> -	bucket = rcu_dereference_protected(rt->rt6i_exception_bucket, 1);
> -	if (bucket) {
> -		rt->rt6i_exception_bucket = NULL;
> -		kfree(bucket);
> -	}
> -
> -	m = rt->fib6_metrics;
> -	if (m != &dst_default_metrics && refcount_dec_and_test(&m->refcnt))
> -		kfree(m);

You remove this...

>  
>  	rt->from = NULL;
> -	dst_release(&from->dst);
> +	fib6_info_release(from);

Yet fib6_info_release() doesn't take care of it (unlike the IPv4
equivalent), which means you're leaking the metrics.

>  }

  reply	other threads:[~2018-03-24 14:31 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-19  3:36 [PATCH RFC v2 net-next 00/21] net/ipv6: Separate data structures for FIB and data path David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 01/21] net: Move fib_convert_metrics to metrics file David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 02/21] net: Handle null dst in rtnl_put_cacheinfo David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 03/21] vrf: Move fib6_table into net_vrf David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 04/21] net/ipv6: Pass net to fib6_update_sernum David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 05/21] net/ipv6: Pass net namespace to route functions David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 06/21] net/ipv6: Move support functions up in route.c David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 07/21] net/ipv6: Save route type in rt6_info David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 08/21] net/ipv6: Move nexthop data to fib6_nh David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 09/21] net/ipv6: Defer initialization of dst to data path David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 10/21] net/ipv6: move metrics from dst to rt6_info David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 11/21] net/ipv6: move expires into rt6_info David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 12/21] net/ipv6: Add fib6_null_entry David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 13/21] net/ipv6: Add rt6_info create function for ip6_pol_route_lookup David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 14/21] net/ipv6: Move dst flags to booleans in fib entries David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 15/21] net/ipv6: Create a neigh_lookup for FIB entries David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 16/21] net/ipv6: Add gfp_flags to route add functions David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 17/21] net/ipv6: Cleanup exception and cache route handling David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 18/21] net/ipv6: introduce fib6_info struct and helpers David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 19/21] net/ipv6: separate handling of FIB entries from dst based routes David Ahern
2018-03-24 14:31   ` Ido Schimmel [this message]
2018-03-24 15:31     ` David Ahern
2018-03-24 16:02       ` Ido Schimmel
2018-03-25 14:49         ` David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 20/21] net/ipv6: Flip FIB entries to fib6_info David Ahern
2018-03-19  3:36 ` [PATCH RFC v2 net-next 21/21] net/ipv6: Remove unused code and variables for rt6_info David Ahern
2018-03-19 14:23 ` [PATCH RFC v2 net-next 00/21] net/ipv6: Separate data structures for FIB and data path David Miller
2018-03-24 15:05 ` Ido Schimmel
2018-03-24 15:28   ` David Ahern
2018-03-24 15:59     ` Ido Schimmel
2018-03-25 15:09       ` David Ahern

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