Ask HN: Resources for Writing Linux Filesystems?

9 pointsaalhour2y ago2 comments

Where can I begin learning how to write Linux filesystems?

2 comments

If there's nothing readily available online, my first idea would be to skim over the source for a few different already existing filesystem drivers.

https://github.com/gotoco/dummyfs

Maybe this will help?

b200002y ago

this is what people always suggest. read the code that is already there.

my experience has been that you quickly need to then learn how several other major parts of the kernel work which is non trivial and something i struggle with.

there is also no comments in the code which makes it even harder.

and the books that are there are not up to date with recent kernels AFAIK.

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