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. 05, 2022
Filed:
Jul. 22, 2019
Emc Ip Holding Company Llc, Hopkinton, MA (US);
George Mathew, Belmont, CA (US);
Murthy V Mamidi, San Jose, CA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Embodiments for optimizing file lookups after a file or directory rename operation. Files are defined using inode, dirent, and hash entries, and the name space of the files are stored in a B−Tree using file system conventions in which the inode, dirent, and hash values are referenced by the directory first followed by the inode number, as in a first data structure denoted [directory:inode]. Upon a rename of a file, the old inode, dirent, and hash entries are deleted, and a reference is created to the old name using the inode number first followed by the old directory, as in a second data structure denoted [inode:old_directory], and this reference is used as a forward link to the new file under the new directory name.