filemap_fault

Langue: en

Autres versions - même langue

Version: June 2009 (debian - 07/07/09)

Section: 9 (Appels noyau Linux)

Sommaire

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.