1. A method for dynamic memory cache size adjustment, the method comprising: disabling dynamic adjustment of a physical size of a memory cache of a memory device in response to determining that a file system on the memory device does not support dynamic cache size adjustment; enabling the disabled dynamic adjustment of the physical size of the memory cache in response to determining that the memory device supports a command that allows for the dynamic adjustment of the physical size of the memory cache; determining a size of available memory space in a memory array of the memory device; and adjusting the physical size of a memory cache in the memory array responsive to the determined size of available memory space.