block: remove q->prepare_flush_fn completely

This removes q->prepare_flush_fn completely (changes the
blk_queue_ordered API).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

6 files changed, 7 insertions, 8 deletions

diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 1b218c6b6820..1d2c18620f9a 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -479,7 +479,7 @@ static struct brd_device *brd_alloc(int i)
         if (!brd->brd_queue)
                 goto out_free_dev;
         blk_queue_make_request(brd->brd_queue, brd_make_request);
-        blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG, NULL);
+        blk_queue_ordered(brd->brd_queue, QUEUE_ORDERED_TAG);
         blk_queue_max_hw_sectors(brd->brd_queue, 1024);
         blk_queue_bounce_limit(brd->brd_queue, BLK_BOUNCE_ANY);
 
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index fedfdb7d3cdf..d285a5481965 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -831,7 +831,7 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
         lo->lo_queue->unplug_fn = loop_unplug;
 
         if (!(lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync)
-                blk_queue_ordered(lo->lo_queue, QUEUE_ORDERED_DRAIN, NULL);
+                blk_queue_ordered(lo->lo_queue, QUEUE_ORDERED_DRAIN);
 
         set_capacity(lo->lo_disk, size);
         bd_set_size(bdev, size << 9);
diff --git a/drivers/block/osdblk.c b/drivers/block/osdblk.c
index 9639565a9a6a..2284b4f05c62 100644
--- a/drivers/block/osdblk.c
+++ b/drivers/block/osdblk.c
@@ -439,7 +439,7 @@ static int osdblk_init_disk(struct osdblk_device *osdev)
         blk_queue_stack_limits(q, osd_request_queue(osdev->osd));
 
         blk_queue_prep_rq(q, blk_queue_start_tag);
-        blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH, NULL);
+        blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH);
 
         disk->queue = q;
 
diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index ab528a480f98..e9da874d0419 100644
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -468,7 +468,7 @@ static int __devinit ps3disk_probe(struct ps3_system_bus_device *_dev)
         blk_queue_dma_alignment(queue, dev->blk_size-1);
         blk_queue_logical_block_size(queue, dev->blk_size);
 
-        blk_queue_ordered(queue, QUEUE_ORDERED_DRAIN_FLUSH, NULL);
+        blk_queue_ordered(queue, QUEUE_ORDERED_DRAIN_FLUSH);
 
         blk_queue_max_segments(queue, -1);
         blk_queue_max_segment_size(queue, dev->bounce_size);
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index b277f9e6abac..0a3222fd4442 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -366,9 +366,9 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
 
         /* If barriers are supported, tell block layer that queue is ordered */
         if (virtio_has_feature(vdev, VIRTIO_BLK_F_FLUSH))
-                blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH, NULL);
+                blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH);
         else if (virtio_has_feature(vdev, VIRTIO_BLK_F_BARRIER))
-                blk_queue_ordered(q, QUEUE_ORDERED_TAG, NULL);
+                blk_queue_ordered(q, QUEUE_ORDERED_TAG);
 
         /* If disk is read-only in the host, the guest should obey */
         if (virtio_has_feature(vdev, VIRTIO_BLK_F_RO))
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 495533e66542..76af65b654e3 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -373,8 +373,7 @@ static int xlvbd_barrier(struct blkfront_info *info)
         int err;
 
         err = blk_queue_ordered(info->rq,
-                                info->feature_barrier ? QUEUE_ORDERED_DRAIN : QUEUE_ORDERED_NONE,
-                                NULL);
+                                info->feature_barrier ? QUEUE_ORDERED_DRAIN : QUEUE_ORDERED_NONE);
 
         if (err)
                 return err;