suse man page for follow_pfn

Query: follow_pfn

OS: suse

Section: 9

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

FOLLOW_PFN(9)						    Memory Management in Linux						     FOLLOW_PFN(9)

NAME
follow_pfn - look up PFN at a user virtual address
SYNOPSIS
int follow_pfn(struct vm_area_struct * vma, unsigned long address, unsigned long * pfn);
ARGUMENTS
vma memory mapping address user virtual address pfn location to store found PFN
DESCRIPTION
Only IO mappings and raw PFN mappings are allowed. Returns zero and the pfn at pfn on success, -ve otherwise.
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 FOLLOW_PFN(9)
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