2019 	down_read(&fs_info->dev_replace.rwsem);  in btrfs_num_devices()
2020 	if (btrfs_dev_replace_is_ongoing(&fs_info->dev_replace)) {  in btrfs_num_devices()
2024 	up_read(&fs_info->dev_replace.rwsem);  in btrfs_num_devices()
5775 	down_read(&fs_info->dev_replace.rwsem);  in btrfs_num_copies()
5776 	if (btrfs_dev_replace_is_ongoing(&fs_info->dev_replace) &&  in btrfs_num_copies()
5777 	    fs_info->dev_replace.tgtdev)  in btrfs_num_copies()
5779 	up_read(&fs_info->dev_replace.rwsem);  in btrfs_num_copies()
5857 	    fs_info->dev_replace.cont_reading_from_srcdev_mode ==  in find_live_mirror()
5859 		srcdev = fs_info->dev_replace.srcdev;  in find_live_mirror()
6186 				      struct btrfs_dev_replace *dev_replace,  in handle_ops_on_dev_replace()  argument
6191 	u64 srcdev_devid = dev_replace->srcdev->devid;  in handle_ops_on_dev_replace()
6204 		if (is_block_group_to_copy(dev_replace->srcdev->fs_info, logical))  in handle_ops_on_dev_replace()
6228 				new->dev = dev_replace->tgtdev;  in handle_ops_on_dev_replace()
6268 			tgtdev_stripe->dev = dev_replace->tgtdev;  in handle_ops_on_dev_replace()
6402 	struct btrfs_dev_replace *dev_replace = &fs_info->dev_replace;  in __btrfs_map_block()  local
6429 	down_read(&dev_replace->rwsem);  in __btrfs_map_block()
6430 	dev_replace_is_ongoing = btrfs_dev_replace_is_ongoing(dev_replace);  in __btrfs_map_block()
6436 		up_read(&dev_replace->rwsem);  in __btrfs_map_block()
6439 	    !need_full_stripe(op) && dev_replace->tgtdev != NULL) {  in __btrfs_map_block()
6441 						    dev_replace->srcdev->devid,  in __btrfs_map_block()
6550 	if (dev_replace_is_ongoing && dev_replace->tgtdev != NULL) {  in __btrfs_map_block()
6566 	     !dev_replace->tgtdev)) {  in __btrfs_map_block()
6568 			smap->dev = dev_replace->tgtdev;  in __btrfs_map_block()
6619 	if (dev_replace_is_ongoing && dev_replace->tgtdev != NULL &&  in __btrfs_map_block()
6621 		handle_ops_on_dev_replace(op, &bioc, dev_replace, logical,  in __btrfs_map_block()
6638 		bioc->stripes[0].dev = dev_replace->tgtdev;  in __btrfs_map_block()
6644 		lockdep_assert_held(&dev_replace->rwsem);  in __btrfs_map_block()
6646 		up_read(&dev_replace->rwsem);  in __btrfs_map_block()