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Staging: hv: Enable blkvsc_ioctl() 

We can support HDIO_GET_IDENTITY ioctl, enable blkvsc_ioctl().

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>
This commit is contained in:
K. Y. Srinivasan 2011-04-22 14:55:06 -07:00 committed by Greg Kroah-Hartman
parent 8c3ab81c4e
commit 7b04cd089e
1 changed files with 3 additions and 8 deletions
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11
drivers/staging/hv/blkvsc_drv.c
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@ -413,23 +413,18 @@ static void blkvsc_init_rw(struct blkvsc_request *blkvsc_req)
static int blkvsc_ioctl(struct block_device *bd, fmode_t mode,
unsigned cmd, unsigned long argument)
unsigned cmd, unsigned long arg)
{
int ret;
struct block_device_context *blkdev = bd->bd_disk->private_data;
int ret = 0;
switch (cmd) {
/*
* TODO: I think there is certain format for HDIO_GET_IDENTITY rather
* than just a GUID. Commented it out for now.
*/
#if 0
case HDIO_GET_IDENTITY:
DPRINT_INFO(BLKVSC_DRV, "HDIO_GET_IDENTITY\n");
if (copy_to_user((void __user *)arg, blkdev->device_id,
blkdev->device_id_len))
ret = -EFAULT;
break;
#endif
default:
ret = -EINVAL;
break;