Hope this article can help:
           kernel-src/Documentation/workqueue.txt

At 2014-07-04 04:34:03, "Freeman Zhang" <freeman.zhang1992@gmail.com> wrote:

Hi,

On 2014-07-04 13:50, Robert Clove wrote:

Hi All,

How we create queues in kernel space and what are the size limit ?

Regards

That should be kfifo. Check this:
http://thelinuxdesk.com/tag/linux-kernel-queue/ 
Hope this can help  :D


All the best!
Freeman