filemap_fault - read in file data for page fault handling
2. SYNOPSIS ▲
int filemap_fault(struct vm_area_struct * vma , struct vm_fault * vmf );
3. ARGUMENTS ▲
vma in which the fault was taken
struct vm_fault containing details of the fault
4. 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 gotoAqs 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.
5. COPYRIGHT ▲