[PATCH] sr: mark device as changed when performing a write SG_IO operation

[Maurizio Lombardi]

Signed-off-by: Maurizio Lombardi <mlomb...@redhat.com>
---
 drivers/scsi/sr.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 3f3cb72..e64311d 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -49,6 +49,7 @@
 #include <linux/uaccess.h>
 
 #include <scsi/scsi.h>
+#include <scsi/sg.h>
 #include <scsi/scsi_dbg.h>
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_driver.h>
@@ -553,6 +554,7 @@ static int sr_block_ioctl(struct block_device *bdev, 
fmode_t mode, unsigned cmd,
        struct scsi_cd *cd = scsi_cd(bdev->bd_disk);
        struct scsi_device *sdev = cd->device;
        void __user *argp = (void __user *)arg;
+       struct sg_io_hdr hdr;
        int ret;
 
        mutex_lock(&sr_mutex);
@@ -571,6 +573,12 @@ static int sr_block_ioctl(struct block_device *bdev, 
fmode_t mode, unsigned cmd,
        case SCSI_IOCTL_GET_BUS_NUMBER:
                ret = scsi_ioctl(sdev, cmd, argp);
                goto out;
+       case SG_IO:
+               if (copy_from_user(&hdr, argp, sizeof(hdr)))
+                       break;
+               if (hdr.dxfer_direction == SG_DXFER_TO_DEV)
+                       sdev->changed = 1;
+               break;
        }
 
        ret = cdrom_ioctl(&cd->cdi, bdev, mode, cmd, arg);
-- 
Maurizio Lombardi