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:
Aug. 15, 2017
Filed:
Dec. 30, 2014
Applicant:
Emc Corporation, Hopkinton, MA (US);
Inventors:
Suraj Brahma Raju, Bellevue, WA (US);
Ronald Steinke, Tacoma, WA (US);
Assignee:
EMC IP Holding Company LLC, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/46 (2006.01); G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
G06F 17/30171 (2013.01); G06F 17/3033 (2013.01);
Abstract
Implementations are provided herein for sub-block ranged locking on a journal block. A file system locking scheme can be adjusted to provide ranged locks on sub-blocks of a journal block. By locking sub-block ranges of a journal block, two independent operations on the same block that do not overlap on a sub-block range can operate independent of each other and be processed concurrently without requiring an exclusive lock over the entire block. Delta write locks, delta read locks, and shared locks can be established on a sub-block range level.