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READ_CACHE_PAGE_ASYN(9) Memory Management in Linux READ_CACHE_PAGE_ASYN(9)

NAME

read_cache_page_async - read into page cache, fill it if needed

SYNOPSIS

struct page * read_cache_page_async(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

Same as read_cache_page, but don´t wait for page to become unlocked after submitting it to the filler.

Read into the page cache. If a page already exists, and PageUptodate is not set, try to fill the page but don´t wait for it to become unlocked.

If the page does not get brought uptodate, return -EIO.

COPYRIGHT

May 2024 Kernel Hackers Manual 2.6.