ps3disk: stop using q->prepare_flush_fn

REQ_FLUSH flag enables us to kill ps3disk_prepare_flush().

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>

diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c
index 5f208c0..ab528a4 100644 (file)
--- a/drivers/block/ps3disk.c
+++ b/drivers/block/ps3disk.c
@@ -196,13 +196,12 @@ static void ps3disk_do_request(struct ps3_storage_device *dev,
        dev_dbg(&dev->sbd.core, "%s:%u\n", __func__, __LINE__);
 
        while ((req = blk_fetch_request(q))) {
-               if (req->cmd_type == REQ_TYPE_FS) {
-                       if (ps3disk_submit_request_sg(dev, req))
-                               break;
-               } else if (req->cmd_type == REQ_TYPE_LINUX_BLOCK &&
-                          req->cmd[0] == REQ_LB_OP_FLUSH) {
+               if (req->cmd_flags & REQ_FLUSH) {
                        if (ps3disk_submit_flush_request(dev, req))
                                break;
+               } else if (req->cmd_type == REQ_TYPE_FS) {
+                       if (ps3disk_submit_request_sg(dev, req))
+                               break;
                } else {
                        blk_dump_rq_flags(req, DEVICE_NAME " bad request");
                        __blk_end_request_all(req, -EIO);
@@ -257,8 +256,7 @@ static irqreturn_t ps3disk_interrupt(int irq, void *data)
                return IRQ_HANDLED;
        }
 
-       if (req->cmd_type == REQ_TYPE_LINUX_BLOCK &&
-           req->cmd[0] == REQ_LB_OP_FLUSH) {
+       if (req->cmd_flags & REQ_FLUSH) {
                read = 0;
                op = "flush";
        } else {
@@ -398,16 +396,6 @@ static int ps3disk_identify(struct ps3_storage_device *dev)
        return 0;
 }
 
-static void ps3disk_prepare_flush(struct request_queue *q, struct request *req)
-{
-       struct ps3_storage_device *dev = q->queuedata;
-
-       dev_dbg(&dev->sbd.core, "%s:%u\n", __func__, __LINE__);
-
-       req->cmd_type = REQ_TYPE_LINUX_BLOCK;
-       req->cmd[0] = REQ_LB_OP_FLUSH;
-}
-
 static unsigned long ps3disk_mask;
 
 static DEFINE_MUTEX(ps3disk_mask_mutex);
@@ -480,8 +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,
-                         ps3disk_prepare_flush);
+       blk_queue_ordered(queue, QUEUE_ORDERED_DRAIN_FLUSH, NULL);
 
        blk_queue_max_segments(queue, -1);
        blk_queue_max_segment_size(queue, dev->bounce_size);