netdev - Re: [PATCH v3 net-next 5/5] net: page_pool: simplify page recycling condition tests

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Message-ID: <20210131122348.GM308988@casper.infradead.org>
Date:   Sun, 31 Jan 2021 12:23:48 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Alexander Lobakin <alobakin@...me>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        John Hubbard <jhubbard@...dia.com>,
        David Rientjes <rientjes@...gle.com>,
        Yisen Zhuang <yisen.zhuang@...wei.com>,
        Salil Mehta <salil.mehta@...wei.com>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        Jonathan Lemon <jonathan.lemon@...il.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Dexuan Cui <decui@...rosoft.com>,
        Jakub Sitnicki <jakub@...udflare.com>,
        Marco Elver <elver@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, intel-wired-lan@...ts.osuosl.org,
        linux-rdma@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH v3 net-next 5/5] net: page_pool: simplify page recycling
 condition tests

On Sun, Jan 31, 2021 at 12:12:11PM +0000, Alexander Lobakin wrote:
> pool_page_reusable() is a leftover from pre-NUMA-aware times. For now,
> this function is just a redundant wrapper over page_is_pfmemalloc(),
> so inline it into its sole call site.

Why doesn't this want to use {dev_}page_is_reusable()?