bio_get_nr_vecs(9)
NAME
bio_get_nr_vecs - return approx number of vecs
SYNOPSIS
int bio_get_nr_vecs(struct block_device * bdev);
ARGUMENTS
- bdev
- I/O target
DESCRIPTION
Return the approximate number of pages we can send to this target.
There´s no guarantee that you will be able to fit this number of pages
into a bio, it does not account for dynamic restrictions that vary on
offset.