- struct page * find_get_entry(struct address_space * mapping, pgoff_t offset);
- the address_space to search
- the page cache index
Looks up the page cache slot at mapping & offset. If there is a page cache page, it is returned with an increased refcount.
If the slot holds a shadow entry of a previously evicted page, or a swap entry from shmem/tmpfs, it is returned.
Otherwise, NULL is returned.