The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2017
Filed:
Nov. 26, 2008
Applicant:
James Paul Schneider, Raleigh, NC (US);
Inventor:
James Paul Schneider, Raleigh, NC (US);
Assignee:
Red Hat, Inc., Raleigh, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 17/3015 (2013.01); G06F 3/0608 (2013.01); G06F 3/0641 (2013.01);
Abstract
An apparatus and a method for maintaining a file system is described. An allocation module receives a request from a kernel module to allocate a block of the file system to a file. The allocation module examines an other block of the file system to determine whether the other block contain a same data as the block. The allocation module also determines an external reference count of the other block containing the same data. The other block is then allocated to the file and the external reference count is updated accordingly.