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Message-Id: <59d8a50047ee01e26658fd676d26c0162b79e5fd.1285385607.git.xiaohui.xin@intel.com> Date: Sat, 25 Sep 2010 12:27:19 +0800 From: xiaohui.xin@...el.com To: netdev@...r.kernel.org, kvm@...r.kernel.org, linux-kernel@...r.kernel.org, mingo@...e.hu, davem@...emloft.net, herbert@...dor.hengli.com.au, jdike@...ux.intel.com Cc: Xin Xiaohui <xiaohui.xin@...el.com> Subject: [PATCH v11 01/17] Add a new structure for skb buffer from external. From: Xin Xiaohui <xiaohui.xin@...el.com> Signed-off-by: Xin Xiaohui <xiaohui.xin@...el.com> Signed-off-by: Zhao Yu <yzhao81new@...il.com> Reviewed-by: Jeff Dike <jdike@...ux.intel.com> --- include/linux/skbuff.h | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 124f90c..74af06c 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -203,6 +203,15 @@ struct skb_shared_info { void * destructor_arg; }; +/* The structure is for a skb which pages may point to + * an external buffer, which is not allocated from kernel space. + * It also contains a destructor for itself. + */ +struct skb_ext_page { + struct page *page; + void (*dtor)(struct skb_ext_page *); +}; + /* We divide dataref into two halves. The higher 16 bits hold references * to the payload part of skb->data. The lower 16 bits hold references to * the entire skb->data. A clone of a headerless skb holds the length of -- 1.7.3 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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