push_node_boundaries

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

NAME

push_node_boundaries - Push node boundaries to at least the requested boundary

SYNOPSIS

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

DESCRIPTION

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.