Patent attributes
Incremental inline journaling in a journaled file system can be utilized to facilitate concurrency and throughput of a journaled file system. In an example, a request can be received for a transaction to modify a sub-block portion of a file stored in a distributed storage system. In response to that, the modification can be allocated to a data structure in a journal of the distributed storage system. After the transaction commits, a current value of the sub-block portion of the file can be saved to the delta structure. Then, a new value corresponding to the request for the transaction to modify the sub-block portion of the file can be written to the metadata block. After writing the new value to the metadata block, a memory space used to store the delta structure can be freed.
