bio_add_pc_page - attempt to add page to bio
2. SYNOPSIS ▲
int bio_add_pc_page(struct request_queue * q , struct bio * bio , struct page * page , unsigned int len , unsigned int offset );
3. ARGUMENTS ▲
the target queue
page to add
vec entry length
vec entry offset
4. 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 bioAqs up to 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.
5. COPYRIGHT ▲