NAME
blk_add_trace_bio - Add a trace for a bio oriented action
SYNOPSIS
void blk_add_trace_bio(struct request_queue * q, struct bio * bio, u32 what, int error);
ARGUMENTS
q
queue the io is for
bio
the source bio
what
the action
error
error, if any
DESCRIPTION
Records an action against a bio. Will log the bio offset + size.