NAME
blk_queue_ordered - does this queue support ordered writes
SYNOPSIS
void blk_queue_ordered (request_queue_t * q, int flag);
ARGUMENTS
q the request queue
flag see below
DESCRIPTION
For journalled file systems, doing ordered writes on a commit block
instead of explicitly doing wait_on_buffer (which is bad for
performance) can be a big win. Block drivers supporting this feature
should call this function and indicate so.