free_area_init_nodes man page on Oracle

free_area_init_nodes man page on Oracle

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FREE_AREA_INIT_NODES(9)	  Memory Management in Linux   FREE_AREA_INIT_NODES(9)

NAME
       free_area_init_nodes - Initialise all pg_data_t and zone data

SYNOPSIS
       void free_area_init_nodes(unsigned long * max_zone_pfn);

ARGUMENTS
       max_zone_pfn
	   an array of max PFNs for each zone

DESCRIPTION
       This will call free_area_init_node for each active node in the system.
       Using the page ranges provided by add_active_range, the size of each
       zone in each node and their holes is calculated. If the maximum PFN
       between two adjacent zones match, it is assumed that the zone is empty.
       For example, if arch_max_dma_pfn == arch_max_dma32_pfn, it is assumed
       that arch_max_dma32_pfn has no pages. It is also assumed that a zone
       starts where the previous one ended. For example, ZONE_DMA32 starts at
       arch_max_dma_pfn.

COPYRIGHT
Kernel Hackers Manual 3.8.	   June 2014	       FREE_AREA_INIT_NODES(9)

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