linux-kernel - Re: [PATCH] [v4.14.y] infiniband: fix race condition between infiniband mlx4, mlx5 driver and core dumping

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Message-ID: <20190614145510.GA14860@kroah.com>
Date:   Fri, 14 Jun 2019 16:55:10 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Ajay Kaher <akaher@...are.com>
Cc:     "aarcange@...hat.com" <aarcange@...hat.com>,
        "jannh@...gle.com" <jannh@...gle.com>,
        "oleg@...hat.com" <oleg@...hat.com>,
        "peterx@...hat.com" <peterx@...hat.com>,
        "rppt@...ux.ibm.com" <rppt@...ux.ibm.com>,
        "jgg@...lanox.com" <jgg@...lanox.com>,
        "mhocko@...e.com" <mhocko@...e.com>,
        "yishaih@...lanox.com" <yishaih@...lanox.com>,
        "dledford@...hat.com" <dledford@...hat.com>,
        "sean.hefty@...el.com" <sean.hefty@...el.com>,
        "hal.rosenstock@...il.com" <hal.rosenstock@...il.com>,
        "matanb@...lanox.com" <matanb@...lanox.com>,
        "leonro@...lanox.com" <leonro@...lanox.com>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        Srivatsa Bhat <srivatsab@...are.com>,
        Alexey Makhalov <amakhalov@...are.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] [v4.14.y] infiniband: fix race condition between
 infiniband mlx4, mlx5  driver and core dumping

On Fri, Jun 14, 2019 at 02:41:39PM +0000, Ajay Kaher wrote:
> 
> On 10/06/19, 6:22 PM, "Ajay Kaher" <akaher@...are.com> wrote:
> 
> > This patch is the extension of following upstream commit to fix
> > the race condition between get_task_mm() and core dumping
> > for IB->mlx4 and IB->mlx5 drivers:
> > 
> > commit 04f5866e41fb ("coredump: fix race condition between
> > mmget_not_zero()/get_task_mm() and core dumping")'
> >    
> > Thanks to Jason for pointing this.
> >    
> > Signed-off-by: Ajay Kaher <akaher@...are.com>
> > Acked-by: Jason Gunthorpe <jgg@...lanox.com>
> 
> Greg, I hope you would like to review and proceed further with this patch.  

If this is all calmed down now, I'll look at it next week, thanks.

greg k-h