Staging: hv: Get rid of blkvsc_do_read_capacity16()

Get rid of blkvsc_do_read_capacity16() and instead use the common function
for retrieving capacity.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c
index b2d149d..7fab3c7 100644 (file)
--- a/drivers/staging/hv/blkvsc_drv.c
+++ b/drivers/staging/hv/blkvsc_drv.c
@@ -752,82 +752,6 @@ static int blkvsc_release(struct gendisk *disk, fmode_t mode)
 }
 
 
-static int blkvsc_do_read_capacity16(struct block_device_context *blkdev)
-{
-       struct blkvsc_request *blkvsc_req;
-       struct page *page_buf;
-       unsigned char *buf;
-       struct scsi_sense_hdr sense_hdr;
-       struct vmscsi_request *vm_srb;
-
-       DPRINT_DBG(BLKVSC_DRV, "blkvsc_do_read_capacity16()\n");
-
-       blkdev->sector_size = 0;
-       blkdev->capacity = 0;
-       blkdev->media_not_present = 0; /* assume a disk is present */
-
-       blkvsc_req = kmem_cache_zalloc(blkdev->request_pool, GFP_KERNEL);
-       if (!blkvsc_req)
-               return -ENOMEM;
-
-       memset(blkvsc_req, 0, sizeof(struct blkvsc_request));
-       vm_srb = &blkvsc_req->request.vstor_packet.vm_srb;
-       page_buf = alloc_page(GFP_KERNEL);
-       if (!page_buf) {
-               kmem_cache_free(blkvsc_req->dev->request_pool, blkvsc_req);
-               return -ENOMEM;
-       }
-
-       init_completion(&blkvsc_req->request.wait_event);
-       blkvsc_req->dev = blkdev;
-       blkvsc_req->req = NULL;
-       blkvsc_req->write = 0;
-
-       blkvsc_req->request.data_buffer.pfn_array[0] =
-       page_to_pfn(page_buf);
-       blkvsc_req->request.data_buffer.offset = 0;
-       blkvsc_req->request.data_buffer.len = 12;
-
-       blkvsc_req->cmnd[0] = 0x9E; /* READ_CAPACITY16; */
-       blkvsc_req->cmd_len = 16;
-
-       /*
-        * Set this here since the completion routine may be invoked
-        * and completed before we return
-        */
-
-       blkvsc_submit_request(blkvsc_req, blkvsc_cmd_completion);
-
-       DPRINT_DBG(BLKVSC_DRV, "waiting %p to complete\n",
-                  blkvsc_req);
-
-       wait_for_completion_interruptible(&blkvsc_req->request.wait_event);
-
-       /* check error */
-       if (vm_srb->scsi_status) {
-               scsi_normalize_sense(blkvsc_req->sense_buffer,
-                                    SCSI_SENSE_BUFFERSIZE, &sense_hdr);
-               if (sense_hdr.asc == 0x3A) {
-                       /* Medium not present */
-                       blkdev->media_not_present = 1;
-               }
-               return 0;
-       }
-       buf = kmap(page_buf);
-
-       /* be to le */
-       blkdev->capacity = be64_to_cpu(*(unsigned long long *) &buf[0]) + 1;
-       blkdev->sector_size = be32_to_cpu(*(unsigned int *)&buf[8]);
-
-       kunmap(page_buf);
-
-       __free_page(page_buf);
-
-       kmem_cache_free(blkvsc_req->dev->request_pool, blkvsc_req);
-
-       return 0;
-}
-
 static int blkvsc_revalidate_disk(struct gendisk *gd)
 {
        struct block_device_context *blkdev = gd->private_data;
@@ -1312,9 +1236,8 @@ static int blkvsc_probe(struct device *device)
                set_disk_ro(blkdev->gd, 1);
                blkdev->gd->flags |= GENHD_FL_REMOVABLE;
                blkvsc_do_operation(blkdev, DO_CAPACITY);
-       } else {
-               blkvsc_do_read_capacity16(blkdev);
-       }
+       } else
+               blkvsc_do_operation(blkdev, DO_CAPACITY);
 
        set_capacity(blkdev->gd, blkdev->capacity * (blkdev->sector_size/512));
        blk_queue_logical_block_size(blkdev->gd->queue, blkdev->sector_size);