fs/btrfs/space-info.c

971 	struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv;
977 	if (global_rsv->space_info != space_info)
980 	spin_lock(&global_rsv->lock);
981 	min_bytes = mult_perc(global_rsv->size, 10);
982 	if (global_rsv->reserved < min_bytes + ticket->bytes) {
983 		spin_unlock(&global_rsv->lock);
986 	global_rsv->reserved -= ticket->bytes;
991 	if (global_rsv->reserved < global_rsv->size)
992 		global_rsv->full = 0;
993 	spin_unlock(&global_rsv->lock);
1158 	struct btrfs_block_rsv *global_rsv;
1167 	global_rsv = &fs_info->global_block_rsv;
1175 		const u64 global_rsv_size = btrfs_block_rsv_reserved(global_rsv);
1194 		 * We don't want to include the global_rsv in our calculation,