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Date:   Wed, 7 Oct 2020 18:42:37 -0700
From:   Cong Wang <>
To:     Eric Dumazet <>
Cc:     "David S . Miller" <>,
        netdev <>,
        Eric Dumazet <>,
        Allen Pais <>
Subject: Re: [PATCH net-next] net/sched: get rid of qdisc->padded

On Wed, Oct 7, 2020 at 9:51 AM Eric Dumazet <> wrote:
> From: Eric Dumazet <>
> kmalloc() of sufficiently big portion of memory is cache-aligned
> in regular conditions. If some debugging options are used,
> there is no reason qdisc structures would need 64-byte alignment
> if most other kernel structures are not aligned.
> This get rid of QDISC_ALIGN and QDISC_ALIGNTO.
> Addition of privdata field will help implementing
> the reverse of qdisc_priv() and documents where
> the private data is.
> Signed-off-by: Eric Dumazet <>
> Cc: Cong Wang <>
> Cc: Allen Pais <>

Acked-by: Cong Wang <>


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