linux-kernel - Re: [PATCH 3/9] IB: add a helper to safely drain a QP

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Message-ID: <564B5E7D.9030309@sandisk.com>
Date:	Tue, 17 Nov 2015 09:06:05 -0800
From:	Bart Van Assche <bart.vanassche@...disk.com>
To:	Sagi Grimberg <sagig@....mellanox.co.il>,
	Christoph Hellwig <hch@....de>, <linux-rdma@...r.kernel.org>
CC:	<bart.vanassche@...disk.com>, <axboe@...com>,
	<linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/9] IB: add a helper to safely drain a QP

On 11/15/2015 01:34 AM, Sagi Grimberg wrote:
> This is taken from srp, and srp drains using a recv wr due to a race
> causing a use-after-free condition in srp which re-posts a recv buffer
> in the recv completion handler.

Hello Sagi,

Would it be possible to clarify this ? Does this refer to an existing 
race or a race that would only occur if the code would be modified ?

Thanks,

Bart.
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