File systems, processes, circuits, devices and electronic systems
AssigneeTexas Instruments Incorporated
InventorsKeshava Munegowda, Madan Srinivas, Rohit Joshi, Veeramanikandan Raju
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Abstract
A computer device (2010) with a file system having clusters and meta data. The computer device (2010) includes a processor (1030) and a storage (1025) coupled to the processor and having physical representations of instructions so that the processor is operable to reserve (230) at least one of the clusters and to create a log record when meta data for the file system is to be updated by a write (240) of such meta data beforehand to such a reserved cluster, and then set (250) at least one state entry to substantially represent readiness to write the meta data to the file system.
Claims5
An integrated circuit system comprising:
- A. an integrated circuit microprocessor that executes instructions accessed from storage circuitry;
- B. non-volatile storage circuitry coupled to the microprocessor;
- and
- C. instruction storage circuitry coupled to the microprocessor, the instruction storage circuitry containing physical representations of instructions for the microprocessor to:
- i. write a log record with updated meta data in a log table in the non-volatile storage circuitry;
- ii. set a state of the log record to ready;
- iii. set a corresponding ready entry in a master log record in the non-volatile storage circuitry;
- iv. update file system meta data with log record meta data;
- v. change the log record state of ready to committed;
- and
- vi. change the master log record state of ready to committed.
Dependencies are inferred from the claim text.