Method for establishing disk file system

Abstract

The invention discloses a method for establishing a disk file system. The method comprises the following steps of: uniformly storing identifications corresponding to disk partitions needing to be managed into other disk partitions; orderly formatting the disk partitions corresponding to the stored identifications; allocating a superblock object for the disk file system in a memory; initializing device fields in the superblock object into a linked list; and after orderly saving superblock information of the uniformly managed disk partitions into the linked list, mounting the disk file system on a catalog. By using the method, when the space of a certain disk partition managed uniformly by the disk file system is not enough, a file can be saved in other uniformly managed disk partition without remodifying the catalog in which the file is saved; therefore, the method can ensure that the file is saved correctly and reduce the workload required for managing the file at the same time.

Description

technical field [0001] The invention relates to the technical field of computer file system management, in particular to a method for creating a disk file system. Background technique [0002] The disk file system is a very important part of the Linux operating system. There are two main aspects to create a disk file system: one is to format the disk partition, that is, to deploy a disk file system on the disk partition. Specifically, the The disk partition at least includes the disk partition’s metadata information such as the number of disk partitions, block size, and disk partition usage, and the name of the disk file system is stored in the super block of the disk partition; the second is to mount the disk file system. Specifically, all the information in the super block of the disk partition is stored in the super block object of the internal memory, and at the same time, the identification of the disk partition is also correspondingly stored in the device field of the ...

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Problems solved by technology

However, when these file contents or new files are discarded, some very important information may be lost; when copied to other disk partitions, first of all, it is necessary to select which disk partition to copy to, and secondly, these file contents or new files The directory to which it belongs also changes (because the directory mounted by each disk file system is different), so all operations and programs that access the content of these files or new files must be modified to access the file through the new directory

In addition, each disk partition and each directory in the system is generally configured to manage a certain type of file. If the file storage directory changes a lot, the file storage in the system will be confused, and the file search efficiency will be low. That is, additional configuration work is required, which increases the workload of managing files

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