Adapting UBIFS file system to android operating system requirements

Abstract

This paper describes the process and modifications necessary for UBIFS file system to properly function under Android Nougat. These modifications refer to BLKROSET ioctl() (input/output control) support and the required modes for fallocate() system call. All modifications have been performed on Android flavored Linux kernel, version 3.18. Validation has been performed by executing CTS test suite, executing LTP test suite and comparing custom test results to those of EXT4 file system.