From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: netdev@vger.kernel.org, jhs@mojatatu.com
Subject: Re: [PATCH net] net_sched: do not broadcast RTM_GETTFILTER result
Date: Thu, 13 Oct 2016 09:54:03 -0400 (EDT) [thread overview]
Message-ID: <20161013.095403.1806984759673575482.davem@davemloft.net> (raw)
In-Reply-To: <1476069955.28155.292.camel@edumazet-glaptop3.roam.corp.google.com>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Sun, 09 Oct 2016 20:25:55 -0700
> From: Eric Dumazet <edumazet@google.com>
>
> There are two ways to get tc filters from kernel to user space.
>
> 1) Full dump (tc_dump_tfilter())
> 2) RTM_GETTFILTER to get one precise filter, reducing overhead.
>
> The second operation is unfortunately broadcasting its result,
> polluting "tc monitor" users.
>
> This patch makes sure only the requester gets the result, using
> netlink_unicast() instead of rtnetlink_send()
>
> Jamal cooked an iproute2 patch to implement "tc filter get" operation,
> but other user space libraries already use RTM_GETTFILTER when a single
> filter is queried, instead of dumping all filters.
>
> Signed-off-by: Eric Dumazet <edumazet@google.com>
Applied, thanks Eric.
Want me to queue this up for -stable too?
next prev parent reply other threads:[~2016-10-13 13:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-10 3:25 [PATCH net] net_sched: do not broadcast RTM_GETTFILTER result Eric Dumazet
2016-10-10 13:16 ` Jamal Hadi Salim
2016-10-12 16:36 ` Cong Wang
2016-10-13 7:46 ` Eric Dumazet
2016-10-13 11:54 ` Jamal Hadi Salim
2016-10-13 13:54 ` David Miller [this message]
2016-10-13 21:08 ` Eric Dumazet
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