linux-kernel - Re: [PATCH v3] mlx5: Use refcount

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Message-ID: <cbea99e74a1f70b1a67357aaf2afdb55655cd2bd.camel@mellanox.com>
Date:   Tue, 6 Aug 2019 20:40:11 +0000
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "hslester96@...il.com" <hslester96@...il.com>
CC:     "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "jgg@...pe.ca" <jgg@...pe.ca>, "leon@...nel.org" <leon@...nel.org>,
        "dledford@...hat.com" <dledford@...hat.com>
Subject: Re: [PATCH v3] mlx5: Use refcount_t for refcount

On Tue, 2019-08-06 at 09:59 +0800, Chuhong Yuan wrote:
> Reference counters are preferred to use refcount_t instead of
> atomic_t.
> This is because the implementation of refcount_t can prevent
> overflows and detect possible use-after-free.
> So convert atomic_t ref counters to refcount_t.
> 
> Signed-off-by: Chuhong Yuan <hslester96@...il.com>
> ---
> Changes in v3:
>   - Merge v2 patches together.
> 
>  drivers/infiniband/hw/mlx5/srq_cmd.c         | 6 +++---
>  drivers/net/ethernet/mellanox/mlx5/core/qp.c | 6 +++---
>  include/linux/mlx5/driver.h                  | 3 ++-
>  3 files changed, 8 insertions(+), 7 deletions(-)
> 

LGTM, Leon, let me know if you are happy with this version, 
this should go to mlx5-next.