File System-Based Metadata Management Method and Related Device Thereof

A file system metadata management apparatus comprising:

• a memory configured to stores code;
• and
• a processor coupled to the memory and configured to execute the code, to enable the apparatus to:
• obtain a metadata obtaining request for M files in a directory, wherein the metadata obtaining request comprises an inode number of the directory, and wherein M≥2;
• determine whether a first start address of a non-volatile memory (NVM) area corresponding to the inode number of the directory exists, wherein the NVM area is a contiguous memory area in an NVM;
• and
• responsive to the first start address existing, obtain M key-value pairs from the first NVM area based on the first start address of the NVM area,
• wherein an ith key-value pair in the M key-value pairs comprises the inode number of the directory and metadata of an ith file, and
• wherein i=1, . . . , M.

A computer program product comprising computer-executable instructions stored in a non-transitory medium, the instructions executable by a processor to cause the processor to:

• obtain a metadata obtaining request for M files in a directory, wherein the metadata obtaining request comprises an inode number of the directory, and wherein M≥2;
• determine whether a first start address of a non-volatile memory (NVM) area corresponding to the inode number of the directory exists, wherein the NVM area is a contiguous memory area in an NVM;
• and
• responsive to the first start address existing, obtain M key-value pairs from the NVM area based on the first start address,
• wherein an ith key-value pair in the M key-value pairs comprises the inode number of the directory and metadata of an ith file, and
• wherein i=1, . . . , M.