File system and method for parallelizing a single file write update operation using the same

摘要

As a method of controlling the file system to write data to a single file, the file information of the file to which the data is written, and data from among the plurality of blocks constituting the file are written to the function calling thread that called the data write function. Check the thread information including the block start point information to start writing and data length information. Checks whether there is a previous thread writing data to the same file based on the file information, and if there is a previous thread, based on the block start point information and data length information of the function calling thread, whether there are any blocks overlapping with the blocks of the previous thread. Confirm. If the function calling thread wants to write data to a block different from the blocks of the previous thread, it controls the function calling thread to write the data to a file.