BIO_ADD_PAGE(9) The Linux VFS BIO_ADD_PAGE(9)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.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 BIO_ADD_PAGE(9)