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From:   Jason Gunthorpe <jgg@mellanox.com>
To:     Ajay Kaher <akaher@vmware.com>
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Subject: Re: [PATCH v4 2/3][v4.9.y] coredump: fix race condition between
 mmget_not_zero()/get_task_mm() and core dumping
Thread-Topic: [PATCH v4 2/3][v4.9.y] coredump: fix race condition between
 mmget_not_zero()/get_task_mm() and core dumping
Thread-Index: AQHVKo0oRBGkKYxOxkqZ7SBtAl/moqaqx9UA
Date:   Mon, 24 Jun 2019 13:12:30 +0000
Message-ID: <20190624131226.GA7418@mellanox.com>
References: <1561410186-3919-1-git-send-email-akaher@vmware.com>
 <1561410186-3919-2-git-send-email-akaher@vmware.com>
In-Reply-To: <1561410186-3919-2-git-send-email-akaher@vmware.com>
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On Tue, Jun 25, 2019 at 02:33:04AM +0530, Ajay Kaher 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:
>=20
> commit 04f5866e41fb ("coredump: fix race condition between
> mmget_not_zero()/get_task_mm() and core dumping")'
>=20
> Thanks to Jason for pointing this.
>=20
> Signed-off-by: Ajay Kaher <akaher@vmware.com>
> ---
>  drivers/infiniband/hw/mlx4/main.c | 4 +++-
>  drivers/infiniband/hw/mlx5/main.c | 3 +++
>  2 files changed, 6 insertions(+), 1 deletion(-)

Looks OK

Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>

Thanks
Jason