diff options
| author | Rusty Russell <rusty@rustcorp.com.au> | 2009-10-22 16:39:28 -0600 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2009-10-22 16:39:30 +1030 |
| commit | 3225beaba05d4f06087593f5e903ce867b6e118a (patch) | |
| tree | e68653a5f31ef98cbc96e170680187311e881fa0 /drivers | |
| parent | e95646c3ec33c8ec0693992da4332a6b32eb7e31 (diff) | |
virtio_blk: Revert serial number support
This reverts "Add serial number support for virtio_blk, V4a".
Turns out that virtio_pci, lguest and s/390 all have an 8 bit limit
on virtio config space, so noone could ever use this.
This is coming back later in a cleaner form.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: john cooper <john.cooper@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/virtio_blk.c | 37 |
1 files changed, 3 insertions, 34 deletions
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 55635d1f697..51042f0ba7e 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -182,34 +182,6 @@ static void do_virtblk_request(struct request_queue *q) vblk->vq->vq_ops->kick(vblk->vq); } -/* return ATA identify data - */ -static int virtblk_identify(struct gendisk *disk, void *argp) -{ - struct virtio_blk *vblk = disk->private_data; - void *opaque; - int err = -ENOMEM; - - opaque = kmalloc(VIRTIO_BLK_ID_BYTES, GFP_KERNEL); - if (!opaque) - goto out; - - err = virtio_config_buf(vblk->vdev, VIRTIO_BLK_F_IDENTIFY, - offsetof(struct virtio_blk_config, identify), opaque, - VIRTIO_BLK_ID_BYTES); - - if (err) - goto out_kfree; - - if (copy_to_user(argp, opaque, VIRTIO_BLK_ID_BYTES)) - err = -EFAULT; - -out_kfree: - kfree(opaque); -out: - return err; -} - static void virtblk_prepare_flush(struct request_queue *q, struct request *req) { req->cmd_type = REQ_TYPE_LINUX_BLOCK; @@ -221,10 +193,6 @@ static int virtblk_ioctl(struct block_device *bdev, fmode_t mode, { struct gendisk *disk = bdev->bd_disk; struct virtio_blk *vblk = disk->private_data; - void __user *argp = (void __user *)data; - - if (cmd == HDIO_GET_IDENTITY) - return virtblk_identify(disk, argp); /* * Only allow the generic SCSI ioctls if the host can support it. @@ -232,7 +200,8 @@ static int virtblk_ioctl(struct block_device *bdev, fmode_t mode, if (!virtio_has_feature(vblk->vdev, VIRTIO_BLK_F_SCSI)) return -ENOTTY; - return scsi_cmd_ioctl(disk->queue, disk, mode, cmd, argp); + return scsi_cmd_ioctl(disk->queue, disk, mode, cmd, + (void __user *)data); } /* We provide getgeo only to please some old bootloader/partitioning tools */ @@ -443,7 +412,7 @@ static struct virtio_device_id id_table[] = { static unsigned int features[] = { VIRTIO_BLK_F_BARRIER, VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX, VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE, - VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_IDENTIFY, VIRTIO_BLK_F_FLUSH + VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH }; /* |