* Re: [B.A.T.M.A.N.] [PATCH 3.16 046/114] batman-adv: Fix broadcast/ogm queue limit on a removed interface
[not found] ` <lsq.1465842997.536267398@decadent.org.uk>
@ 2016-06-13 19:26 ` Linus Lüssing
0 siblings, 0 replies; only message in thread
From: Linus Lüssing @ 2016-06-13 19:26 UTC (permalink / raw)
To: Ben Hutchings
Cc: Marek Lindner, b.a.t.m.a.n, Antonio Quartulli, linux-kernel,
stable, akpm
On Mon, Jun 13, 2016 at 07:36:37PM +0100, Ben Hutchings wrote:
> 3.16.36-rc1 review patch. If anyone has any objections, please let me know.
>
Hi Ben,
This one looks weird. The version you added for 3.2.81-rc1 looked
better.
Cheers, Linus
> ------------------
>
> From: Linus Lüssing <linus.luessing@c0d3.blue>
>
> commit c4fdb6cff2aa0ae740c5f19b6f745cbbe786d42f upstream.
>
> When removing a single interface while a broadcast or ogm packet is
> still pending then we will free the forward packet without releasing the
> queue slots again.
>
> This patch is supposed to fix this issue.
>
> Fixes: 6d5808d4ae1b ("batman-adv: Add missing hardif_free_ref in forw_packet_free")
> Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
> [sven@narfation.org: fix conflicts with current version]
> Signed-off-by: Sven Eckelmann <sven@narfation.org>
> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
> Signed-off-by: Antonio Quartulli <a@unstable.cc>
> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
> ---
> net/batman-adv/send.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> --- a/net/batman-adv/send.c
> +++ b/net/batman-adv/send.c
> @@ -638,6 +638,12 @@ batadv_purge_outstanding_packets(struct
>
> if (pending) {
> hlist_del(&forw_packet->list);
> + if (!forw_packet->own)
> + atomic_inc(&bat_priv->bcast_queue_left);
> +
> + if (!forw_packet->own)
> + atomic_inc(&bat_priv->batman_queue_left);
> +
> batadv_forw_packet_free(forw_packet);
> }
> }
>
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