From: hch@lst.de (Christoph Hellwig)
Subject: [PATCH v3] nvmet-rdma: Correctly handle RDMA device hot removal
Date: Mon, 1 Aug 2016 17:50:54 +0200 [thread overview]
Message-ID: <20160801155054.GD22771@lst.de> (raw)
In-Reply-To: <307087d1-88af-5244-38e8-5b9786285488@grimberg.me>
On Mon, Aug 01, 2016@02:30:37PM +0300, Sagi Grimberg wrote:
>> How is ->remove_port synchronized vs the RDMA/CM even handler?
>
> Easy, it isn't :)
>
> So we have three choices here:
> 1. Add a lock in nvmet_port that only rdma will use for now (don't like
> it)
> or
> 2. Add nvmet_rdma_port as nvmet_port->priv with a lock (don't like it)
> or
> 3. take the global nvmet_config_sem (hate it)
>
> Any preferences?
(4) use cmpxchg?
next prev parent reply other threads:[~2016-08-01 15:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-31 12:15 [PATCH v3] nvmet-rdma: Correctly handle RDMA device hot removal Sagi Grimberg
2016-08-01 11:15 ` Christoph Hellwig
2016-08-01 11:30 ` Sagi Grimberg
2016-08-01 15:50 ` Christoph Hellwig [this message]
2016-08-02 6:39 ` Sagi Grimberg
2016-08-02 12:53 ` Christoph Hellwig
2016-08-01 14:44 ` Bart Van Assche
2016-08-01 15:09 ` Bart Van Assche
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