Merge commit 'v2.6.28-rc7' into tracing/core

[cascardo/linux.git] / drivers / block / xen-blkfront.c

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 1a50ae7..2d19f0c 100644 (file)
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -156,11 +156,10 @@ static int blkif_getgeo(struct block_device *bd, struct hd_geometry *hg)
        return 0;
 }
 
-static int blkif_ioctl(struct inode *inode, struct file *filep,
+static int blkif_ioctl(struct block_device *bdev, fmode_t mode,
                       unsigned command, unsigned long argument)
 {
-       struct blkfront_info *info =
-               inode->i_bdev->bd_disk->private_data;
+       struct blkfront_info *info = bdev->bd_disk->private_data;
        int i;
 
        dev_dbg(&info->xbdev->dev, "command: 0x%x, argument: 0x%lx\n",
@@ -339,12 +338,18 @@ wait:
 static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size)
 {
        struct request_queue *rq;
+       elevator_t *old_e;
 
        rq = blk_init_queue(do_blkif_request, &blkif_io_lock);
        if (rq == NULL)
                return -1;
 
-       elevator_init(rq, "noop");
+       old_e = rq->elevator;
+       if (IS_ERR_VALUE(elevator_init(rq, "noop")))
+               printk(KERN_WARNING
+                       "blkfront: Switch elevator failed, use default\n");
+       else
+               elevator_exit(old_e);
 
        /* Hard sector size and max sectors impersonate the equiv. hardware. */
        blk_queue_hardsect_size(rq, sector_size);
@@ -1014,16 +1019,16 @@ static int blkfront_is_ready(struct xenbus_device *dev)
        return info->is_ready;
 }
 
-static int blkif_open(struct inode *inode, struct file *filep)
+static int blkif_open(struct block_device *bdev, fmode_t mode)
 {
-       struct blkfront_info *info = inode->i_bdev->bd_disk->private_data;
+       struct blkfront_info *info = bdev->bd_disk->private_data;
        info->users++;
        return 0;
 }
 
-static int blkif_release(struct inode *inode, struct file *filep)
+static int blkif_release(struct gendisk *disk, fmode_t mode)
 {
-       struct blkfront_info *info = inode->i_bdev->bd_disk->private_data;
+       struct blkfront_info *info = disk->private_data;
        info->users--;
        if (info->users == 0) {
                /* Check whether we have been instructed to close.  We will
@@ -1044,7 +1049,7 @@ static struct block_device_operations xlvbd_block_fops =
        .open = blkif_open,
        .release = blkif_release,
        .getgeo = blkif_getgeo,
-       .ioctl = blkif_ioctl,
+       .locked_ioctl = blkif_ioctl,
 };