Name

bio_add_pc_page — attempt to add page to bio

Synopsis

int bio_add_pc_page (struct request_queue *  q,
 struct bio *  bio,
 struct page *  page,
 unsigned int  len,
 unsigned int  offset);

Arguments

q

the target queue

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. This should only be used by REQ_PC bios.