Patent ID: 11921639
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. A host device, comprising:
an allocating unit configured to reallocate a logical address of a predetermined logical address region of a first logical address to physical address (L2P) table in a cache of the host device to a first file in a storage device, when the first file changes to a first predetermined type of file; and
an updating unit configured to update the first L2P table corresponding to the predetermined logical address region in the cache to provide an updated first L2P table,
wherein the updated first L2P table includes a mapping relationship between the reallocated logical address and a physical address of the first file, and
wherein the updating unit is further configured to
establish the mapping relationship between the reallocated logical address of the first file and the physical address of the first file in the first L2P table, wherein the physical address of the first file is an original physical address of the first file; and
transmit a logical address update message, which includes an original logical address and the reallocated logical address, to the storage device through a reserved interface, so that the storage device establishes the mapping relationship between the reallocated logical address and the original physical address of the first file.