Struct sk_buff_head

Hi,

On 06/07/2017 09:36 PM, wiktoria.lewicka wrote:

I read code from file include/linux/skbuff.h and I have question about sk_buff_head structure. 
[...]
Is this union replace sk_buff_head structure? 
I didn`t found any field in sk_buff, which may use sk_buff_head, [...]

As I can see it, sk_buff can be on double-linked list,
and then it is linked by next and prev,
or it is referenced by red-black tree, rb_node,
depending of some network logic (packet type ?)

Both are used by functions operating on structures.

-- 
Best regards,
Kamil Konieczny
Samsung R&D Institute Poland