push_node_boundaries9
Push node boundaries to at least the requested boundary
Usage
void __init push_node_boundaries(unsigned int nid, unsigned long start_pfn, unsigned long end_pfn);
Arguments
nid
The nid of the node to push the boundary for
start_pfn
The start pfn of the node
end_pfn
The end pfn of the node
Overview
In reserve-based hot-add, mem_map is allocated that is unused until hotadd time. Specifically, on x86_64, SRAT will report ranges that can potentially be hotplugged even though no physical memory exists. This function allows an arch to push out the node boundaries so mem_map is allocated that can be used later.
Releases
2 releases since Debian 4.0 (Etch); the text changed 1 time.