Re: Questions about the tcp code in 2.4.9

[Andi Kleen <ak@xxxxxx>]

On Mon, Aug 20, 2001 at 07:19:24PM +0200, chuckw@xxxxxxxx wrote:
> Hello All,
>       I have 2 questions.  They may seem stupid, but the guys over at 
> kernelnewbies said
> you guys would know the answers to these.
>       1)  on line 1054 of tcp.c it seems that the sock buffer is being added 
> to the 
>           front of the write queue. 
>                               If my observation is correct ? why : what is 
> happening

The tcp write queue is a ring and prev of the is head is the back. 

> 
>       2)  when an iovec is written to the sock buffer, it looks like the 
> whole iovec
>           is written into the same sock buffer.  Is that correct?

Not necessarily. It can be split over multiple skbs when needed.

-Andi