Disk space allocation

Details Disk space allocation Disk space allocation

2011-03-01

2011-03-01

Krofcheck, Michael C (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S170000, C711S147000, C711SE12002

Reexamination Certificate

active

07900008

ABSTRACT:
A method and system for allocating blocks of disk in persistent storage to requesting threads. A primary data structure is provided for organizing and categorizing blocks of disk space. In addition, a secondary data structure is provided for maintaining a list of all active file system processes and blocks of disk space used by those processes. Blocks of disk space are assigned to pages. At such time as a thread may request allocation of disk space, both data structures are reviewed to determine if the requested disk space is available and to limit access of available disk space to a single page of memory to a single thread at any one time.

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