linux-kernel - Re: [PATCH 0/2] IB/rdmavt: cq ktrhead worker fix and API update

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Date:   Thu, 20 Oct 2016 12:56:27 +0000
From:   "Dalessandro, Dennis" <dennis.dalessandro@...el.com>
To:     "dledford@...hat.com" <dledford@...hat.com>,
        "pmladek@...e.com" <pmladek@...e.com>,
        "Hefty, Sean" <sean.hefty@...el.com>
CC:     "hal.rosenstock@...il.com" <hal.rosenstock@...il.com>,
        "tj@...nel.org" <tj@...nel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/2] IB/rdmavt: cq ktrhead worker fix and API update

On Wed, 2016-10-19 at 14:07 +0200, Petr Mladek wrote:
> The kthread worker API has been improved in 4.9-rc1. The 2nd
> patch uses the new functions and simplifies the kthread worker
> creation and destroying.
> 
> I have found a possible race when working on the API conversion.
> A proposed fix is in the 1st patch.
> 
> Both changes are compile tested only. I did not find an easy way
> how to test them at runtime.
> 
> Petr Mladek (2):
>   IB/rdmavt: Avoid queuing work into a destroyed cq kthread worker
>   IB/rdmavt: Handle the kthread worker using the new API
> 
>  drivers/infiniband/sw/rdmavt/cq.c | 64 +++++++++++++++++----------
> ------------
>  1 file changed, 27 insertions(+), 37 deletions(-)

Thanks for the patches. I'm going to take a closer look, I just now
seen these.

-Denny