Managing Storage with a File System

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Keith Packard

Traditional Linux storage is built using several block layers and
adding a file system on top. You can construct a block device out of a
file system using the loop driver, but that interface loses some key
functionality present in the block layer, most importantly the DAX

As an alternative, we can squash some of the the loop driver
functionality into a file system and present both file system
interfaces as…

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