1. A computer-implemented method, comprising: receiving notification that one or more data objects have been logically deleted by deleting metadata about the one or more data objects, wherein the notification provides storage locations within one or more logical storage volumes corresponding to the deleted one or more data objects, wherein each of the one or more data objects are divided into one or more extents; and in response to determining that a sparse file represents the one or more logical storage volumes, deallocating physical space by nulling out space in the sparse file corresponding to each of the one or more extents.