公开(公告)号：US20180032540A1

公开(公告)日：2018-02-01

申请号：US15221887

申请日：2016-07-28

Applicant: Dell Products L.P.

Inventor： Lev GELDMAN ,  Ofir CARNY ,  Daniel KRAUTHGAMER

IPC: G06F17/30

CPC classification number: G06F16/152 ,  G06F16/137

Abstract: A method and a system for implementing a reverse directory lookup using hash table, the method comprising: calculating using a hash function, a hash value of file name, upon creating a new file in a file system; writing the calculated hash value to the metadata of the file; reading the hash value at a meta data of a file of a desirable identifier (ID), responsive to an inquiry of a file name associated with the desirable ID; and searching for a corresponding file name for the desirable ID at a bucket storing all files associated with this bucket according to their filename's hash values, based on a hash function.