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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 neededSYNOPSIS¶
struct page *
read_cache_page(struct address_space * mapping,
pgoff_t index,
int (*filler) (void *, struct page *),
void * data);
ARGUMENTS¶
mappingthe 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 and wait for it to become unlocked. If the page does not get brought uptodate, return -EIO.COPYRIGHT¶
May 2018 | Kernel Hackers Manual 3.16 |