NAME
bio_alloc_pages - allocates a single page for each bvec in a bio
SYNOPSIS
int bio_alloc_pages(struct bio * bio, gfp_t gfp_mask);
ARGUMENTS
bio
bio to allocate pages for
gfp_mask
flags for allocation
DESCRIPTION
Allocates pages up to bio->bi_vcnt.
Returns 0 on success, -ENOMEM on failure. On failure, any allocated pages are freed.