allocate large region of memory in kernel space?

[Xiangfei Jia <xjianz@xxxxxxxxx>]

I'm working on a module that needs to allocate a large region of
memory. I know that in this case I should use vmalloc(). The problem is
the size of memory allocation for vmalloc() is 128MB maximally, but I
need to allocate more than that. What should I do in this case???

Do I have to use a array to hold a number of small regions of memory?

What is the largest physically continuous memory the kmalloc() can allocate?

Thanks!!

Fei