+ case LL_IOC_HEAT_GET: {
+ struct lu_heat uheat;
+ struct lu_heat *heat;
+ int size;
+
+ if (copy_from_user(&uheat, (void __user *)arg, sizeof(uheat)))
+ RETURN(-EFAULT);
+
+ if (uheat.lh_count > OBD_HEAT_COUNT)
+ uheat.lh_count = OBD_HEAT_COUNT;
+
+ size = offsetof(typeof(uheat), lh_heat[uheat.lh_count]);
+ OBD_ALLOC(heat, size);
+ if (heat == NULL)
+ RETURN(-ENOMEM);
+
+ heat->lh_count = uheat.lh_count;
+ ll_heat_get(inode, heat);
+ rc = copy_to_user((char __user *)arg, heat, size);
+ OBD_FREE(heat, size);
+ RETURN(rc ? -EFAULT : 0);
+ }
+ case LL_IOC_HEAT_SET: {
+ __u64 flags;
+
+ if (copy_from_user(&flags, (void __user *)arg, sizeof(flags)))
+ RETURN(-EFAULT);
+
+ rc = ll_heat_set(inode, flags);
+ RETURN(rc);
+ }
+ case LL_IOC_PCC_DETACH: {
+ struct lu_pcc_detach *detach;
+
+ OBD_ALLOC_PTR(detach);
+ if (detach == NULL)
+ RETURN(-ENOMEM);
+
+ if (copy_from_user(detach,
+ (const struct lu_pcc_detach __user *)arg,
+ sizeof(*detach)))
+ GOTO(out_detach_free, rc = -EFAULT);
+
+ if (!S_ISREG(inode->i_mode))
+ GOTO(out_detach_free, rc = -EINVAL);
+
+ if (!inode_owner_or_capable(inode))
+ GOTO(out_detach_free, rc = -EPERM);
+
+ rc = pcc_ioctl_detach(inode, detach->pccd_opt);
+out_detach_free:
+ OBD_FREE_PTR(detach);
+ RETURN(rc);
+ }
+ case LL_IOC_PCC_STATE: {
+ struct lu_pcc_state __user *ustate =
+ (struct lu_pcc_state __user *)arg;
+ struct lu_pcc_state *state;
+
+ OBD_ALLOC_PTR(state);
+ if (state == NULL)
+ RETURN(-ENOMEM);
+
+ if (copy_from_user(state, ustate, sizeof(*state)))
+ GOTO(out_state, rc = -EFAULT);
+
+ rc = pcc_ioctl_state(file, inode, state);
+ if (rc)
+ GOTO(out_state, rc);
+
+ if (copy_to_user(ustate, state, sizeof(*state)))
+ GOTO(out_state, rc = -EFAULT);
+
+out_state:
+ OBD_FREE_PTR(state);
+ RETURN(rc);
+ }