FILEMAP_FAULT

Section: Memory Management in Linux (9)
Updated: February 2011
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NAME

filemap_fault - read in file data for page fault handling  

SYNOPSIS

int filemap_fault(struct vm_area_struct * vma, struct vm_fault * vmf);
 

ARGUMENTS

vma

vma in which the fault was taken

vmf

struct vm_fault containing details of the fault
 

DESCRIPTION

filemap_fault is invoked via the vma operations vector for a mapped memory region to read in file data during a page fault.

The goto's are kind of ugly, but this streamlines the normal case of having it in the page cache, and handles the special cases reasonably without having a lot of duplicated code.  

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