find and get a page cache entry
struct page * find_get_entry (
|struct address_space * mapping, |
| ||pgoff_t offset|
struct address_space * mapping
the address_space to search
the page cache index
Looks up the page cache slot at
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.
NULL is returned.