SUPPORTING INVALIDATION COMMANDS FOR NON-VOLATILE MEMORY

摘要

Techniques and systems are provided for tracking commands. Such methods and systems can include maintaining a meta page in a volatile memory to track commands. The meta page can comprise information associated with a non-volatile memory superblock. When an invalidation command is received for a first logical address, the first logical address can be stored along with an indication that the data associated with the first logical address is invalid, in a first location in the meta page.

主权项

1. A method of tracking commands, comprising:
maintaining a meta page in a volatile memory to track commands, wherein the meta page comprises information associated with a non-volatile memory superblock, the superblock comprising a plurality of physical pages; receiving an invalidation command for a first logical address, the invalidation command indicating that data associated with the first logical address is invalid; and storing the first logical address along with an indication that the data associated with the first logical address is invalid, in a first location in the meta page, wherein an index of the first location is usable to determine the physical page corresponding to the first logical address.