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.

COPYRIGHT Kernel Hackers Manual 2.6. September 2014 BIO_ADD_PC_PAGE(9)