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| 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¶
struct address_space * mapping
the page's address_space
pgoff_t index
the page index
int (*)(void *, struct page *) filler
function to perform the read
void * 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 and wait for it to become unlocked.
If the page does not get brought uptodate, return -EIO.
COPYRIGHT¶
| June 2017 | Kernel Hackers Manual 4.11 |