netdev - Re: [PATCH net-next 1/2] net: prepare (struct ubuf

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAF=yD-KeO=4G5skswqR2r+zv1C3QshA_gZi5vZ50Nd66OcRpLQ@mail.gmail.com>
Date:   Thu, 31 Aug 2017 18:35:06 -0400
From:   Willem de Bruijn <willemdebruijn.kernel@...il.com>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     "David S . Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        Willem de Bruijn <willemb@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: Re: [PATCH net-next 1/2] net: prepare (struct ubuf_info)->refcnt conversion

On Thu, Aug 31, 2017 at 4:30 PM, Eric Dumazet <edumazet@...gle.com> wrote:
> In order to convert this atomic_t refcnt to refcount_t,
> we need to init the refcount to one to not trigger
> a 0 -> 1 transition.
>
> This also removes one atomic operation in fast path.
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Acked-by: Willem de Bruijn <willemb@...gle.com>

Thanks, Eric.