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Date:   Mon, 11 Feb 2019 04:12:08 -0800
From:   Matthew Wilcox <>
To:     Tariq Toukan <>
Cc:     Ilias Apalodimas <>,
        David Miller <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>
Subject: Re: [RFC, PATCH] net: page_pool: Don't use page->private to store

On Mon, Feb 11, 2019 at 08:53:19AM +0000, Tariq Toukan wrote:
> It's great to use the struct page to store its dma mapping, but I am 
> worried about extensibility.
> page_pool is evolving, and it would need several more per-page fields. 
> One of them would be pageref_bias, a planned optimization to reduce the 
> number of the costly atomic pageref operations (and replace existing 
> code in several drivers).

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