Populate an address space with some pages & start reads against them
int read_cache_pages(struct address_space * mapping, struct list_head * pages, int (*filler) (void *, struct page *), void * data);
mapping
the address_space
pages
The address of a list_head which contains the target pages. These pages have their ->index populated and are otherwise uninitialised.
filler
callback routine for filling a single page.
data
private data for the callback routine.
Hides the details of the LRU cache etc from the filesystems.