netdev - Re: [PATCH net-next v2 2/4] bridge: vlan: use rcu for vlan_list traversal in br_fill

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Message-ID: <20151013071925.GC28618@colbert.mtl.com>
Date:	Tue, 13 Oct 2015 10:19:25 +0300
From:	Ido Schimmel <idosch@...lanox.com>
To:	Nikolay Aleksandrov <razor@...ckwall.org>
CC:	<netdev@...r.kernel.org>, <shm@...ulusnetworks.com>,
	<roopa@...ulusnetworks.com>, <stephen@...workplumber.org>,
	<bridge@...ts.linux-foundation.org>, <davem@...emloft.net>,
	"Nikolay Aleksandrov" <nikolay@...ulusnetworks.com>
Subject: Re: [PATCH net-next v2 2/4] bridge: vlan: use rcu for vlan_list
 traversal in br_fill_ifinfo

Mon, Oct 12, 2015 at 10:47:03PM IDT, razor@...ckwall.org wrote:
>From: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
>
>br_fill_ifinfo is called by br_ifinfo_notify which can be called from
>many contexts with different locks held, sometimes it relies upon
>bridge's spinlock only which is a problem for the vlan code, so use
>explicitly rcu for that to avoid problems.
>
>Signed-off-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
Reviewed-by: Ido Schimmel <idosch@...lanox.com>
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