Patent ID: 8984233
Filing Date: 2015-03-17
Classification: G06F

Abstract:
1. A system comprising a computing device and at least one program module that are together configured for performing actions for maintaining a flag associated with a file, the actions comprising: first marking the file as clean, where the first marking comprises setting a flag to indicate that the file is clean and then writing the flag set to indicate that the file is clean to storage; receiving a request to change the file, where the received request is a first request to change the file since the first marking; second marking, in response to the received request, the file as dirty, where the second marking comprises setting a flag to indicate that the file is dirty and then writing flag set to indicate that the file is dirty to the storage; changing, after the second marking is successfully completed, the file according to the received request; writing, after the changing, at least a portion of the changed file to storage; and third marking, after the writing is successfully completed, the file as clean, where the third marking comprises setting the flag to indicate that the file is dean and then writing the flag set to indicate that the file is clean to the storage.