READ_CACHE_PAGE
Section: Memory Management in Linux (9)
Updated: February 2011
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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
-
destination for read data
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.
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