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From:   Albert Huang <huangjie.albert@bytedance.com>
To:     davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
        pabeni@redhat.com
Cc:     Albert Huang <huangjie.albert@bytedance.com>,
        Alexei Starovoitov <ast@kernel.org>,
        Daniel Borkmann <daniel@iogearbox.net>,
        Jesper Dangaard Brouer <hawk@kernel.org>,
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Subject: [RFC v3 Optimizing veth xsk performance 7/9] sk_buff: add destructor_arg_xsk_pool for zero copy
Date:   Tue,  8 Aug 2023 11:19:11 +0800
Message-Id: <20230808031913.46965-8-huangjie.albert@bytedance.com>
In-Reply-To: <20230808031913.46965-1-huangjie.albert@bytedance.com>
References: <20230808031913.46965-1-huangjie.albert@bytedance.com>
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this member is add for dummy dev to suppot zero copy

Signed-off-by: Albert Huang <huangjie.albert@bytedance.com>
---
 include/linux/skbuff.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 16a49ba534e4..db999056022e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -592,6 +592,8 @@ struct skb_shared_info {
 	/* Intermediate layers must ensure that destructor_arg
 	 * remains valid until skb destructor */
 	void *		destructor_arg;
+	/* just for dummy device xsk zero copy */
+	void		*destructor_arg_xsk_pool;
 
 	/* must be last field, see pskb_expand_head() */
 	skb_frag_t	frags[MAX_SKB_FRAGS];
-- 
2.20.1