netdev - Re: [PATCH net-next] net: openvswitch: fixes potential deadlock in dp cleanup code

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Message-Id: <20200724.165929.973861664107084279.davem@davemloft.net>
Date:   Fri, 24 Jul 2020 16:59:29 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     echaudro@...hat.com
Cc:     netdev@...r.kernel.org, dev@...nvswitch.org, kuba@...nel.org,
        pabeni@...hat.com, pshelar@....org
Subject: Re: [PATCH net-next] net: openvswitch: fixes potential deadlock in
 dp cleanup code

From: Eelco Chaudron <echaudro@...hat.com>
Date: Fri, 24 Jul 2020 10:20:59 +0200

> The previous patch introduced a deadlock, this patch fixes it by making
> sure the work is canceled without holding the global ovs lock. This is
> done by moving the reorder processing one layer up to the netns level.
> 
> Fixes: eac87c413bf9 ("net: openvswitch: reorder masks array based on usage")
> Reported-by: syzbot+2c4ff3614695f75ce26c@...kaller.appspotmail.com
> Reported-by: syzbot+bad6507e5db05017b008@...kaller.appspotmail.com
> Reviewed-by: Paolo <pabeni@...hat.com>
> Signed-off-by: Eelco Chaudron <echaudro@...hat.com>

Applied, thank you.