diff options
Diffstat (limited to 'drivers/scsi/sd_ioctl.c')
| -rw-r--r-- | drivers/scsi/sd_ioctl.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/scsi/sd_ioctl.c b/drivers/scsi/sd_ioctl.c index 070e6423e..2f771552a 100644 --- a/drivers/scsi/sd_ioctl.c +++ b/drivers/scsi/sd_ioctl.c @@ -25,9 +25,22 @@ int sd_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigne kdev_t dev = inode->i_rdev; int error; struct Scsi_Host * host; + Scsi_Device * SDev; int diskinfo[4]; struct hd_geometry *loc = (struct hd_geometry *) arg; + SDev = rscsi_disks[MINOR(dev) >> 4].device; + /* + * If we are in the middle of error recovery, don't let anyone + * else try and use this device. Also, if error recovery fails, it + * may try and take the device offline, in which case all further + * access to the device is prohibited. + */ + if( !scsi_block_when_processing_errors(SDev) ) + { + return -ENODEV; + } + switch (cmd) { case HDIO_GETGEO: /* Return BIOS disk parameters */ if (!loc) return -EINVAL; @@ -91,6 +104,9 @@ int sd_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigne case BLKRRPART: /* Re-read partition tables */ return revalidate_scsidisk(dev, 1); + + RO_IOCTLS(dev, arg); + default: return scsi_ioctl(rscsi_disks[MINOR(dev) >> 4].device , cmd, (void *) arg); } |