netdev - Re: [PATCH v2 06/24] page_pool: Convert page_pool_return_page() to page_pool_return

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Message-ID: <248e66ab-fed5-690b-e9e6-bbc0ff07e5e6@redhat.com>
Date:   Fri, 6 Jan 2023 15:10:45 +0100
From:   Jesper Dangaard Brouer <jbrouer@...hat.com>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>
Cc:     brouer@...hat.com, netdev@...r.kernel.org, linux-mm@...ck.org,
        Shakeel Butt <shakeelb@...gle.com>
Subject: Re: [PATCH v2 06/24] page_pool: Convert page_pool_return_page() to
 page_pool_return_netmem()


On 05/01/2023 22.46, Matthew Wilcox (Oracle) wrote:
> Removes a call to compound_head(), saving 464 bytes of kernel text
> as page_pool_return_page() is inlined seven times.

Nice save for I-cache :-)

> Signed-off-by: Matthew Wilcox (Oracle)<willy@...radead.org>
> ---
>   net/core/page_pool.c | 14 ++++++++++----
>   1 file changed, 10 insertions(+), 4 deletions(-)

Acked-by: Jesper Dangaard Brouer <brouer@...hat.com>