FILEMAP_FAULT(9) Memory Management in Linux FILEMAP_FAULT(9)
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.
COPYRIGHT Kernel Hackers Manual 2.6. November 2013 FILEMAP_FAULT(9)