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Method and device for improving speed of mounting journal file system

A file system and embedded device technology, applied in the field of communication, can solve the problem of long mount time of log file system, and achieve the effect of reducing mount time

Active Publication Date: 2012-08-08
杭州迪普信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Every time the log file system is mounted to the operating system, the operating system needs to scan the entire storage medium, resulting in a long time to mount the log file system

Method used

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  • Method and device for improving speed of mounting journal file system
  • Method and device for improving speed of mounting journal file system
  • Method and device for improving speed of mounting journal file system

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Embodiment Construction

[0048] The core idea of ​​the present invention is: configure the index storage medium to save various linked list index information of the log file system, and use the idea of ​​exchanging space for time to improve the mounting performance of the log file system. When the index storage medium is uninstalled from the operating system, the index information of various linked lists of the journal file system is stored in the memory; when the journal file system is mounted to the operating system next time, the operating system directly reads the Reading the linked list index information of the log file system from the storage medium does not need to scan the storage medium for establishing the log file system, thereby reducing the mounting time of the log file system.

[0049] The present invention provides a method for increasing the speed of mounting a log-type file system, which is applied to an embedded device configured with a log-type file system, and the embedded device is...

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Abstract

The invention discloses a method and a device for improving speed of mounting journal file system. The method comprises the following steps: an operation system scans the storage medium building the journal file system and obtains the chain table index information of the journal file system when the journal file system is mounted into the operation system of the embedded device for the first time; the operation system writes the chain table index information of the journal file system into the index storage medium when the journal file system is uninstalled for the first time, and sets different mark bits according to the normality or abnormality of the written chain table index information normally or abnormally; the subsequent journal file system is mounted into the operation system; the operation system reads the mark bit information, if the chain table index information is written normally, the operation system reads the chain table index information from the index storage medium directly; if the chain table index information is written abnormally, the operation system scans the storage medium building the journal file system again and obtains the chain table index information. The invention reduces the mounting time of journal file system in embedded device.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a method and device for increasing the speed of mounting a log file system. Background technique [0002] The software organization responsible for managing and storing file information in the operating system is called a file management system, or file system for short. The file system consists of three parts: software related to file management, managed files, and data structures required for file management. From a system perspective, a file system is a system that organizes and allocates file storage space, is responsible for file storage, and protects and retrieves stored files. [0003] The file system is built on physical storage devices. For embedded devices, the storage devices used by embedded devices are generally not disks on general-purpose computers, but Flash flash chips, small flash cards, memory sticks, etc. Storage medium for system design. [0004] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
Inventor 王涛
Owner 杭州迪普信息技术有限公司
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