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push_node_boundaries
Langue: en
Version: June 2009 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
NAME
push_node_boundaries - Push node boundaries to at least the requested boundarySYNOPSIS
- 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.
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