#define SZ_SG_IOVEC sizeof(sg_iovec_t)
#define SZ_SG_REQ_INFO sizeof(sg_req_info_t)
+static int sg_allow_access(struct file *filp, unsigned char *cmd)
+{
+ struct sg_fd *sfp = (struct sg_fd *)filp->private_data;
+ struct request_queue *q = sfp->parentdp->device->request_queue;
+
+ if (sfp->parentdp->device->type == TYPE_SCANNER)
+ return 0;
+
+ return blk_verify_command(&q->cmd_filter,
+ cmd, filp->f_mode & FMODE_WRITE);
+}
+
static int
sg_open(struct inode *inode, struct file *filp)
{
sg_remove_request(sfp, srp);
return -EFAULT;
}
- if (read_only && !blk_verify_command(file, cmnd)) {
+ if (read_only && sg_allow_access(file, cmnd)) {
sg_remove_request(sfp, srp);
return -EPERM;
}
if ((!(sfp = (Sg_fd *) filp->private_data)) || (!(sdp = sfp->parentdp)))
return -ENXIO;
+
SCSI_LOG_TIMEOUT(3, printk("sg_ioctl: %s, cmd=0x%x\n",
sdp->disk->disk_name, (int) cmd_in));
read_only = (O_RDWR != (filp->f_flags & O_ACCMODE));
if (copy_from_user(&opcode, siocp->data, 1))
return -EFAULT;
- if (!blk_verify_command(filp, &opcode))
+ if (sg_allow_access(filp, &opcode))
return -EPERM;
}
return sg_scsi_ioctl(filp, sdp->device->request_queue, NULL, p);
*/
flush_dcache_page(pages[i]);
/* ?? Is locking needed? I don't think so */
- /* if (TestSetPageLocked(pages[i]))
+ /* if (!trylock_page(pages[i]))
goto out_unlock; */
}