Scroll to navigation

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

RETURN

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

January 2017 Kernel Hackers Manual 4.8.