Method for finding files in a logical file system

• US 20050065946A1
• Filed: 09/16/2004
• Published: 03/24/2005
• Est. Priority Date: 09/29/2003
• Status: Abandoned Application

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Len, Tan Wei, Jing-Ze, Zhou, Shao-Hong, Gu, Hong, Rao
• Application Number:
  US10/942,400
• Publication Number:
  US 20050065946A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/148 File search processing

Abstract

A method for finding files in a logical file system (120) such as a flash memory module operatively connected to a virtual file system (115) of an operating system (110), the logical file system (120) including a first link point structure. Sectors of a memory layout of the logical file system (120) are exposed in a first link point structure. (Step 220.) The logical file system (120) is then searched beginning at a sector identified in the first link point structure. (Step 240.) Optionally, the method of the invention may include exposing sectors of a memory layout of the logical file system (120) in a plurality of link point structures.

Claims

1. A method for finding files in a logical file system operatively connected to a virtual file system of an operating system, said logical file system comprising a first link point structure, said method comprising the steps of:

exposing sectors of a memory layout of said logical file system in said first link point structure; and

searching said logical file system beginning at a sector identified in said first link point structure.

2. The method of claim 1, further comprising the step of exposing sectors of a memory layout of said logical file system in a plurality of link point structures.

3. The method of claim 2, wherein said step of exposing sectors of a memory layout of said logical file system in a plurality of link point structures comprises storing a memory layout of a sub-directory in said sub-directory'"'"'s link point structure.

4. The method of claim 3, further comprising the steps of:

receiving in said logical file system a plurality of look up requests from said virtual file system; and

finding a file identified in one of said plurality of look up requests.

5. The method of claim 1, wherein said logical file system is a flash memory system.

6. The method of claim 1, wherein said link point structure is a “

vfm_inode_info”

structure.

7. The method of claim 6, wherein said step of exposing sectors of a memory layout of said logical file system comprises storing an FNT sector and an FET sector in said “

vfm_inode_info”

structure.

8. The method of claim 1, wherein said operating system is a Linux operating system.