table of contents
| READ_CACHE_PAGE(9) | Memory Management in Linux | READ_CACHE_PAGE(9) |
NAME¶
read_cache_page - read into page cache, fill it if needed
SYNOPSIS¶
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
DESCRIPTION¶
Read into the page cache. If a page already exists, and PageUptodate is not set, try to fill the page then wait for it to become unlocked.
If the page does not get brought uptodate, return -EIO.
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |