read_cache_page9
Read into page cache, fill it if needed
Usage
struct page * read_cache_page(struct address_space * mapping, pgoff_t index, int (*filler) (void *, struct page *), void * data);
Arguments
mapping
the page's address_space
index
the page index
filler
function to perform the read
data
first arg to filler(data, page) function, often left as NULL
Overview
Read into the page cache. If a page already exists, and PageUptodate is not set, try to fill the page and wait for it to become unlocked.
If the page does not get brought uptodate, return -EIO.
Releases
6 releases since Debian 4.0 (Etch); the text changed 5 times.