From: Sven Eckelmann <sven@narfation.org>
To: b.a.t.m.a.n@lists.open-mesh.org
Subject: Re: [B.A.T.M.A.N.] [maint] batman-adv: Modify neigh_list only with rcu-list functions
Date: Tue, 18 Oct 2016 13:32:57 +0200 [thread overview]
Message-ID: <1902845.IZAkOjBWIK@bentobox> (raw)
In-Reply-To: <20160929152258.8217-1-sven.eckelmann@open-mesh.com>
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On Donnerstag, 29. September 2016 17:22:58 CEST Sven Eckelmann wrote:
> The batadv_hard_iface::neigh_list is accessed via rcu based primitives.
> Thus all operations done on it have to fulfill the requirements by RCU. So
> using non-RCU mechanisms like hlist_add_head is not allowed because it
> misses the barriers required to protect concurrent readers when accessing
> the data behind the pointer.
>
> Fixes: fed2826b490c ("batman-adv: add list of unique single hop neighbors
> per hard-interface") Signed-off-by: Sven Eckelmann
> <sven.eckelmann@open-mesh.com>
> Acked-by: Linus Lüssing <linus.luessing@c0d3.blue>
> ---
> net/batman-adv/originator.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied in 0e384ddb1995ae400766cf33b95537fb115a7800 [1].
Kind regards,
Sven
[1] https://git.open-mesh.org/batman-adv.git/commit/0e384ddb1995ae400766cf33b95537fb115a7800
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prev parent reply other threads:[~2016-10-18 11:32 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-29 15:22 [B.A.T.M.A.N.] [PATCH maint] batman-adv: Modify neigh_list only with rcu-list functions Sven Eckelmann
2016-10-06 3:14 ` Linus Lüssing
2016-10-18 11:32 ` Sven Eckelmann [this message]
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