centos man page for remap_vmalloc_range_partial

REMAP_VMALLOC_RANGE_(9) 				    Memory Management in Linux					   REMAP_VMALLOC_RANGE_(9)

NAME
       remap_vmalloc_range_partial - map vmalloc pages to userspace

SYNOPSIS
       int remap_vmalloc_range_partial(struct vm_area_struct * vma, unsigned long uaddr, void * kaddr, unsigned long size);

ARGUMENTS
       vma
	   vma to cover

       uaddr
	   target user address to start at

       kaddr
	   virtual address of vmalloc kernel memory

       size
	   size of map area

RETURNS
       0 for success, -Exxx on failure

       This function checks that kaddr is a valid vmalloc'ed area, and that it is big enough to cover the range starting at uaddr in vma. Will
       return failure if that criteria isn't met.

       Similar to remap_pfn_range (see mm/memory.c)

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   REMAP_VMALLOC_RANGE_(9)