GET_PFN_RANGE_FOR_NI - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2​.6​.
Note : Memory Management in Linux

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NAMEget_pfn_range_for_nid − Return the start and end page frames for a node

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SYNOPSISvoid __meminit get_pfn_range_for_nid(unsigned int nid, unsigned long * start_pfn, unsigned long * end_pfn);

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ARGUMENTSnid The nid to return the range for​. If MAX_NUMNODES, the min and max PFN are returned​. start_pfn Passed by reference​. On return, it will have the node start_pfn​. end_pfn Passed by reference​. On return, it will have the node end_pfn​.

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DESCRIPTIONIt returns the start and end page frame of a node based on information provided by an arch calling add_active_range​. If called for a node with no available memory, a warning is printed and the start and end PFNs will be 0​.

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