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:
Dec. 11, 2018
Filed:
Apr. 15, 2013
Applicant:
Ewha University-industry Collaboration Foundation, Seoul, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/0804 (2016.01); G06F 12/0871 (2016.01); G06F 11/14 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0804 (2013.01); G06F 11/141 (2013.01); G06F 11/1474 (2013.01); G06F 12/0871 (2013.01);
Abstract
Disclosed herein are a buffer cache apparatus, a journaling file system, and a journaling method capable of incorporating journaling features based on nonvolatile memory. The buffer cache apparatus provides a data buffering function between a central processing unit (CPU) and storage. The buffer cache apparatus includes a plurality of cache blocks and a journal management unit. The plurality of cache blocks are configured as volatile or nonvolatile memory devices. The journal management unit maintains states of freezing for write-protecting dirty up-to-date cache blocks among the plurality of cache blocks.