* success as well). Returns a negated errno value in case of error.
*
* Note: most ioctls are forward onto the block subsystem or further
- * down in the scsi subsytem.
+ * down in the scsi subsystem.
**/
static int sd_ioctl(struct inode * inode, struct file * filp,
unsigned int cmd, unsigned long arg)
{
struct scsi_disk *sdkp = scsi_disk(disk);
struct scsi_device *sdp = sdkp->device;
+ struct scsi_sense_hdr *sshdr = NULL;
int retval;
SCSI_LOG_HLQUEUE(3, sd_printk(KERN_INFO, sdkp, "sd_media_changed\n"));
* can deal with it then. It is only because of unrecoverable errors
* that we would ever take a device offline in the first place.
*/
- if (!scsi_device_online(sdp))
- goto not_present;
+ if (!scsi_device_online(sdp)) {
+ set_media_not_present(sdkp);
+ retval = 1;
+ goto out;
+ }
/*
* Using TEST_UNIT_READY enables differentiation between drive with
* sd_revalidate() is called.
*/
retval = -ENODEV;
- if (scsi_block_when_processing_errors(sdp))
- retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, SD_MAX_RETRIES);
+
+ if (scsi_block_when_processing_errors(sdp)) {
+ sshdr = kzalloc(sizeof(*sshdr), GFP_KERNEL);
+ retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, SD_MAX_RETRIES,
+ sshdr);
+ }
/*
* Unable to test, unit probably not ready. This usually
* and we will figure it out later once the drive is
* available again.
*/
- if (retval)
- goto not_present;
+ if (retval || (scsi_sense_valid(sshdr) &&
+ /* 0x3a is medium not present */
+ sshdr->asc == 0x3a)) {
+ set_media_not_present(sdkp);
+ retval = 1;
+ goto out;
+ }
/*
* For removable scsi disk we have to recognise the presence
retval = sdp->changed;
sdp->changed = 0;
-
+out:
+ if (retval != sdkp->previous_state)
+ sdev_evt_send_simple(sdp, SDEV_EVT_MEDIA_CHANGE, GFP_KERNEL);
+ sdkp->previous_state = retval;
+ kfree(sshdr);
return retval;
-
-not_present:
- set_media_not_present(sdkp);
- return 1;
}
static int sd_sync_cache(struct scsi_disk *sdkp)