2020 	down_read(&fs_info->dev_replace.rwsem);  in btrfs_num_devices()
2021 	if (btrfs_dev_replace_is_ongoing(&fs_info->dev_replace)) {  in btrfs_num_devices()
2025 	up_read(&fs_info->dev_replace.rwsem);  in btrfs_num_devices()
5693 	down_read(&fs_info->dev_replace.rwsem);  in btrfs_num_copies()
5694 	if (btrfs_dev_replace_is_ongoing(&fs_info->dev_replace) &&  in btrfs_num_copies()
5695 	    fs_info->dev_replace.tgtdev)  in btrfs_num_copies()
5697 	up_read(&fs_info->dev_replace.rwsem);  in btrfs_num_copies()
5769 	    fs_info->dev_replace.cont_reading_from_srcdev_mode ==  in find_live_mirror()
5771 		srcdev = fs_info->dev_replace.srcdev;  in find_live_mirror()
6107 				      struct btrfs_dev_replace *dev_replace,  in handle_ops_on_dev_replace()  argument
6112 	u64 srcdev_devid = dev_replace->srcdev->devid;  in handle_ops_on_dev_replace()
6125 		if (is_block_group_to_copy(dev_replace->srcdev->fs_info, logical))  in handle_ops_on_dev_replace()
6150 				new->dev = dev_replace->tgtdev;  in handle_ops_on_dev_replace()
6193 			tgtdev_stripe->dev = dev_replace->tgtdev;  in handle_ops_on_dev_replace()
6323 	struct btrfs_dev_replace *dev_replace = &fs_info->dev_replace;  in __btrfs_map_block()  local
6350 	down_read(&dev_replace->rwsem);  in __btrfs_map_block()
6351 	dev_replace_is_ongoing = btrfs_dev_replace_is_ongoing(dev_replace);  in __btrfs_map_block()
6357 		up_read(&dev_replace->rwsem);  in __btrfs_map_block()
6360 	    !need_full_stripe(op) && dev_replace->tgtdev != NULL) {  in __btrfs_map_block()
6362 						    dev_replace->srcdev->devid,  in __btrfs_map_block()
6467 	if (dev_replace_is_ongoing && dev_replace->tgtdev != NULL) {  in __btrfs_map_block()
6514 	if (dev_replace_is_ongoing && dev_replace->tgtdev != NULL &&  in __btrfs_map_block()
6516 		handle_ops_on_dev_replace(op, &bbio, dev_replace, logical,  in __btrfs_map_block()
6533 		bbio->stripes[0].dev = dev_replace->tgtdev;  in __btrfs_map_block()
6539 		lockdep_assert_held(&dev_replace->rwsem);  in __btrfs_map_block()
6541 		up_read(&dev_replace->rwsem);  in __btrfs_map_block()