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An extensible file system raises the level of file abstraction which provides benefits to both the end-user and programmer. The Modify-on-Access file system provides safe and simple user-defined extensibility through transformations , which are modular operations on input and output streams. A user inserts transformations into input and output streams,(More)
This paper presents the Modify-on-Access Mona le system that provides extensibility through transformations applied to streams of data. Mona is novel in two ways. First, it ooers two levels of extensions kernel and user. It allows performance-critical operations to execute with little overhead in the kernel and untrusted or more complex operations to(More)
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