Regarding remap_pfn_page

[mindentropy]

>> If yes what would happen if I mmap a huge range?
>huge range means you already have huge physical memory to be mapped
>and user space process has huge virtual memory area to accomodate
>that. Note that is mapping is specific to one particular process (or
>threads sharing process address space) so it is fairly possible to
>establish mmap.

Assuming you have 1 single page size of physical memory. Now when you mmap a 
huge size would all the different virtual addresses be mapping onto the same 
physical page frame?