diff --git a/block/cmd-filter.c b/block/cmd-filter.c
index 1d4026206ac2717b6f29826d3fcf014a68c0a127..228b6447e89f295346bcb2d07e295f467bc10f35 100644
--- a/block/cmd-filter.c
+++ b/block/cmd-filter.c
@@ -223,6 +223,7 @@ int blk_register_filter(struct gendisk *disk)
 
 	return 0;
 }
+EXPORT_SYMBOL(blk_register_filter);
 
 void blk_unregister_filter(struct gendisk *disk)
 {
@@ -231,4 +232,4 @@ void blk_unregister_filter(struct gendisk *disk)
 	kobject_put(&filter->kobj);
 	kobject_put(disk->holder_dir->parent);
 }
-
+EXPORT_SYMBOL(blk_unregister_filter);
diff --git a/block/genhd.c b/block/genhd.c
index 656c2c7abf999628e1232024b71c4af2f22a1ac9..d9743ff67898d7040ccabfd4c3b7790577764d99 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -190,7 +190,6 @@ void add_disk(struct gendisk *disk)
 			    disk->minors, NULL, exact_match, exact_lock, disk);
 	register_disk(disk);
 	blk_register_queue(disk);
-	blk_register_filter(disk);
 
 	bdi = &disk->queue->backing_dev_info;
 	bdi_register_dev(bdi, MKDEV(disk->major, disk->first_minor));
@@ -203,7 +202,6 @@ EXPORT_SYMBOL(del_gendisk);	/* in partitions/check.c */
 
 void unlink_gendisk(struct gendisk *disk)
 {
-	blk_unregister_filter(disk);
 	sysfs_remove_link(&disk->dev.kobj, "bdi");
 	bdi_unregister(&disk->queue->backing_dev_info);
 	blk_unregister_queue(disk);
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 49a8c589e346c15982e158e5116c9fd930aa9b46..f1489999cf916a53f222a9c71d9e518be9f69c20 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1933,6 +1933,7 @@ static void ide_cd_remove(ide_drive_t *drive)
 
 	ide_proc_unregister_driver(drive, info->driver);
 
+	blk_unregister_filter(info->disk);
 	del_gendisk(info->disk);
 
 	ide_cd_put(info);
@@ -2158,6 +2159,7 @@ static int ide_cd_probe(ide_drive_t *drive)
 	g->fops = &idecd_ops;
 	g->flags |= GENHD_FL_REMOVABLE;
 	add_disk(g);
+	blk_register_filter(g);
 	return 0;
 
 out_free_cd:
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index e5e7d78564545543925fc6136c6e7c7fc994c028..2a2bc89aba83204f331f3023424150cc1a050f99 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1875,6 +1875,7 @@ static int sd_probe(struct device *dev)
 
 	dev_set_drvdata(dev, sdkp);
 	add_disk(gd);
+	blk_register_filter(gd);
 	sd_dif_config_host(sdkp);
 
 	sd_printk(KERN_NOTICE, sdkp, "Attached SCSI %sdisk\n",
@@ -1908,6 +1909,7 @@ static int sd_remove(struct device *dev)
 	struct scsi_disk *sdkp = dev_get_drvdata(dev);
 
 	device_del(&sdkp->dev);
+	blk_unregister_filter(sdkp->disk);
 	del_gendisk(sdkp->disk);
 	sd_shutdown(dev);
 
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 27f5bfd1def343e205c2710a587571650026410f..3292965bfd84272ad83450b46d7a454c588c01bb 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -656,6 +656,7 @@ static int sr_probe(struct device *dev)
 	dev_set_drvdata(dev, cd);
 	disk->flags |= GENHD_FL_REMOVABLE;
 	add_disk(disk);
+	blk_register_filter(disk);
 
 	sdev_printk(KERN_DEBUG, sdev,
 		    "Attached scsi CD-ROM %s\n", cd->cdi.name);
@@ -894,6 +895,7 @@ static int sr_remove(struct device *dev)
 {
 	struct scsi_cd *cd = dev_get_drvdata(dev);
 
+	blk_unregister_filter(cd->disk);
 	del_gendisk(cd->disk);
 
 	mutex_lock(&sr_ref_mutex);