linux-kernel - Re: [PATCH v2 0/3] Use refcount

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Message-ID: <20190804125249.GI4832@mtr-leonro.mtl.com>
Date:   Sun, 4 Aug 2019 15:52:49 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Chuhong Yuan <hslester96@...il.com>
Cc:     Saeed Mahameed <saeedm@...lanox.com>,
        "David S . Miller" <davem@...emloft.net>,
        Doug Ledford <dledford@...hat.com>,
        Jason Gunthorpe <jgg@...pe.ca>, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/3] Use refcount_t for refcount

On Sat, Aug 03, 2019 at 01:23:34AM +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.
>
> First convert the refcount field to refcount_t in mlx5/driver.h.
> Then convert the uses to refcount_() APIs.
>
> Changelog:
>
> v1 -> v2:
>   - Add #include in include/linux/mlx5/driver.h.

The same NAK as for version v0.

Thanks