netdev - Re: [PATCH net v2 0/3] net/smc: Fixes for race in smc link group termination

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Message-ID: <20220113111010.3d4c5f4c@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net>
Date:   Thu, 13 Jan 2022 11:10:10 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Wen Gu <guwen@...ux.alibaba.com>
Cc:     kgraul@...ux.ibm.com, davem@...emloft.net,
        linux-s390@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v2 0/3] net/smc: Fixes for race in smc link group
 termination

On Thu, 13 Jan 2022 16:36:39 +0800 Wen Gu wrote:
> We encountered some crashes recently and they are caused by the
> race between the access and free of link/link group in abnormal
> smc link group termination. The crashes can be reproduced in
> frequent abnormal link group termination, like setting RNICs up/down.
> 
> This set of patches tries to fix this by extending the life cycle
> of link/link group to ensure that they won't be referred to after
> cleared or freed.

Looks applied, thanks.