bio_put(9) centos man page | unix.com

BIO_PUT(9)							   The Linux VFS							BIO_PUT(9)

NAME
       bio_put - release a reference to a bio

SYNOPSIS
       void bio_put(struct bio * bio);

ARGUMENTS
       bio
	   bio to release reference to

DESCRIPTION
       Put a reference to a struct bio, either one you have gotten with bio_alloc, bio_get or bio_clone. The last put of a bio will free it.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014								BIO_PUT(9)