linux-kernel - Re: [RFC PATCH v3 08/12] net: support non paged skb frags

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: <adde2b31fdd9e7bb4a09f0073580b840bea0bab1.camel@redhat.com>
Date:   Thu, 09 Nov 2023 10:14:37 +0100
From:   Paolo Abeni <pabeni@...hat.com>
To:     Mina Almasry <almasrymina@...gle.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-kselftest@...r.kernel.org, linux-media@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>,
        Arnd Bergmann <arnd@...db.de>,
        David Ahern <dsahern@...nel.org>,
        Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        Shuah Khan <shuah@...nel.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        Shakeel Butt <shakeelb@...gle.com>,
        Jeroen de Borst <jeroendb@...gle.com>,
        Praveen Kaligineedi <pkaligineedi@...gle.com>
Subject: Re: [RFC PATCH v3 08/12] net: support non paged skb frags

On Sun, 2023-11-05 at 18:44 -0800, Mina Almasry wrote:
[...]
> @@ -3421,7 +3446,7 @@ static inline struct page *skb_frag_page(const skb_frag_t *frag)
>   */
>  static inline void __skb_frag_ref(skb_frag_t *frag)
>  {
> -	get_page(skb_frag_page(frag));
> +	page_pool_page_get_many(frag->bv_page, 1);

I guess the above needs #ifdef CONFIG_PAGE_POOL guards and explicit
skb_frag_is_page_pool_iov() check ?


Cheers,

Paolo