Managing file structures for a flash memory file system in a com

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39549701, 395462, 395612, 395622, 395621, 364DIG1, 3642606, 3642811, 3642822, G06F 1200

Patent

active

056824971

ABSTRACT:
A method for compressing a set of file structures in a flash memory subsystem is disclosed. During a clean-up operation, a sibling chain of the file structures stored in a logical block of the flash memory subsystem is traversed. If a file structure is followed by deleted file structures in the sibling chain, then the file structure is transferred to a spare logical block and the sibling pointer of the file structure is programmed bypass the deleted file structures. If a deleted file structure in the sibling chain is referenced by a previous file structure in the sibling chain, then the deleted file structure is transferred to the logical block and recycled.

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