Name
bio_add_page —
attempt to add page to bio
Synopsis
int bio_add_page ( | struct bio * | bio, |
| | struct page * | page, |
| | unsigned int | len, |
| | unsigned int | offset); |
Arguments
bio
destination bio
page
page to add
len
vec entry length
offset
vec entry offset
Description
Attempt to add a page to the bio_vec maplist. This can fail for a
number of reasons, such as the bio being full or target block
device limitations. The target block device must allow bio's
smaller than PAGE_SIZE, so it is always possible to add a single
page to an empty bio.