2205 	down_read(&fs_info->dev_replace.rwsem);  in btrfs_num_devices()
2206 	if (btrfs_dev_replace_is_ongoing(&fs_info->dev_replace)) {  in btrfs_num_devices()
2210 	up_read(&fs_info->dev_replace.rwsem);  in btrfs_num_devices()
6087 	    fs_info->dev_replace.cont_reading_from_srcdev_mode ==  in find_live_mirror()
6089 		srcdev = fs_info->dev_replace.srcdev;  in find_live_mirror()
6314 				      struct btrfs_dev_replace *dev_replace,  in handle_ops_on_dev_replace()  argument
6318 	u64 srcdev_devid = dev_replace->srcdev->devid;  in handle_ops_on_dev_replace()
6332 	if (is_block_group_to_copy(dev_replace->srcdev->fs_info, logical))  in handle_ops_on_dev_replace()
6353 		new->dev = dev_replace->tgtdev;  in handle_ops_on_dev_replace()
6650 	struct btrfs_dev_replace *dev_replace = &fs_info->dev_replace;  in btrfs_map_block()  local
6676 	if (dev_replace->replace_task != current)  in btrfs_map_block()
6677 		down_read(&dev_replace->rwsem);  in btrfs_map_block()
6679 	dev_replace_is_ongoing = btrfs_dev_replace_is_ongoing(dev_replace);  in btrfs_map_block()
6684 	if (!dev_replace_is_ongoing && dev_replace->replace_task != current)  in btrfs_map_block()
6685 		up_read(&dev_replace->rwsem);  in btrfs_map_block()
6727 	if (dev_replace_is_ongoing && dev_replace->tgtdev != NULL &&  in btrfs_map_block()
6813 	if (dev_replace_is_ongoing && dev_replace->tgtdev != NULL &&  in btrfs_map_block()
6815 		handle_ops_on_dev_replace(bioc, dev_replace, logical, &io_geom);  in btrfs_map_block()
6824 	if (dev_replace_is_ongoing && dev_replace->replace_task != current) {  in btrfs_map_block()
6825 		lockdep_assert_held(&dev_replace->rwsem);  in btrfs_map_block()
6827 		up_read(&dev_replace->rwsem);  in btrfs_map_block()