centos man page for bio_alloc_pages

BIO_ALLOC_PAGES(9)						   The Linux VFS						BIO_ALLOC_PAGES(9)

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.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							BIO_ALLOC_PAGES(9)