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 up to PAGE_SIZE, so it is always possible to add a single page to an empty bio.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 BIO_ADD_PAGE(9)
