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:
Apr. 07, 2015
Filed:
Mar. 14, 2013
Applicant:
Emc Corporation, Hopkinton, MA (US);
Inventors:
Assignee:
EMC Corporation, Hopkinton, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/02 (2006.01); G06F 12/14 (2006.01);
U.S. Cl.
CPC ...
G06F 12/1416 (2013.01); G06F 12/0246 (2013.01);
Abstract
A system, method, and computer program product for establishing a memory-mapped file, enabling the memory-mapped file data to be paged to a non-volatile storage medium, marking a portion of the memory-mapped file as protected, wherein a write to the memory mapped file throws a segmentation fault; receiving a write at the memory mapped file, throwing a segmentation fault; and handling the segmentation fault in a segmentation handler, where the handling comprises reading the information in the memory mapped file facility into the undo log, and writing the write IO to the storage medium.