skb_shinfo(head)->frag_list skb_shinfo(head)->frags[]能区分开来吗???结论就是: frags[] are for scatter-gather i/o buffers --nr_frags 和 frags 用于支持 Scatter/Gather I/O buffer,这样SKB的数据部分不需要都 放在线性内存空间而是放在 page. frag_list is for ip fragments http://lxlenovostar.gith…
在2.6.24之后这个结构体有了较大的变化,此处先说一说2.6.16版本的sk_buff,以及解释一些问题. 一. 先直观的看一下这个结构体~~~~~~~~~~~~~~~~~~~~~~在下面解释每个字段的意义~~~~~~~~~~~ struct sk_buff { /* These two members must be first. */ struct sk_buff *next; struct sk_buff *prev; struct sock …
在2.6.24之后这个结构体有了较大的变化,此处先说一说2.6.16版本的sk_buff,以及解释一些问题. 一. 先直观的看一下这个结构体~~~~~~~~~~~~~~~~~~~~~~在下面解释每个字段的意义~~~~~~~~~~~ struct sk_buff { /* These two members must be first. */ struct sk_buff *next; struct sk_buff *prev; struct sock …
转自:http://blog.csdn.net/shanshanpt/article/details/21024465 在2.6.24之后这个结构体有了较大的变化,此处先说一说2.6.16版本的sk_buff,以及解释一些问题. 一. 先直观的看一下这个结构体~~~~~~~~~~~~~~~~~~~~~~在下面解释每个字段的意义~~~~~~~~~~~ struct sk_buff { /* These two members must be first. */ struct sk_buff …
/* * Main IP Receive routine. */ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { const struct iphdr *iph; struct net *net; u32 len; /* When the interface is in promisc. mode, drop all the…
I believe the biggest distinction is that a stub you have already written with predetermined behavior. So you would have a class that implements the dependency (abstract class or interface most likely) you are faking for testing purposes and the meth…
在国外看到详细的说明一篇,非常浅显透彻.转给国内的筒子们:-) 原文标题: Spring中的<context:annotation-config>与<context:component-scan>到底有什么不同? 原文出处:http://stackoverflow.com/a/7456501 <context:annotation-config> is used to activate annotations in beans already registered in…