NAME
shrink_active_range - Shrink an existing registered range of PFNs
SYNOPSIS
void __init shrink_active_range(unsigned int nid, unsigned long old_end_pfn, unsigned long new_end_pfn);
ARGUMENTS
nid
The node id the range is on that should be shrunk
old_end_pfn
The old end PFN of the range
new_end_pfn
The new PFN of the range
DESCRIPTION
i386 with NUMA use alloc_remap to store a node_mem_map on a local node. The map is kept at the end physical page range that has already been registered with add_active_range. This function allows an arch to shrink an existing registered range.