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