BIO_ADD_PC_PAGE(9)                        The Linux VFS                        BIO_ADD_PC_PAGE(9)



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 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.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                        BIO_ADD_PC_PAGE(9)