US 11,704,247 B2
Enhanced duplicate write data tracking for cache memory
Robert M. Walker, Raleigh, NC (US)
Assigned to Micron Technology, Inc., Boise, ID (US)
Filed by Micron Technology, Inc., Boise, ID (US)
Filed on Apr. 12, 2022, as Appl. No. 17/719,248.
Application 17/719,248 is a continuation of application No. 16/934,837, filed on Jul. 21, 2020, granted, now 11,314,643.
Prior Publication US 2022/0308996 A1, Sep. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 12/08 (2016.01); G06F 12/0806 (2016.01); G06F 12/0866 (2016.01); G06F 12/0891 (2016.01); G06F 12/0897 (2016.01)
CPC G06F 12/0806 (2013.01) [G06F 12/0866 (2013.01); G06F 12/0891 (2013.01); G06F 12/0897 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
storing data at a cache portion of a cache memory of a memory sub-system responsive to a request to perform a write operation to write the data;
storing a duplicate copy of the data at a write buffer portion of the cache memory, wherein the cache memory is partitioned into the cache portion and the write buffer portion; and
recording, in a write buffer record, an entry that maps a location of the duplicate copy of the data stored at the write buffer portion of the cache memory to a location of the data stored at the cache portion of the cache memory.