US Patent 10891235 Cache line statuses

A method can include allowing re-use of a selected shareable tag storage location and thus updating a first shareable tag portion comprised therein to a second shareable tag portion; identifying one or more cache lines associated with individual tag portions comprising a pointer to the selected shareable tag storage location; and setting a given cache line status for each of the identified cache lines, wherein the given cache line status: a) allows a cache line to continue to be used in relation to a storage access instruction received before said given cache line status was set; and b) inhibits the cache line from being used in relation to a storage access instruction received after the given cache line status is set.