[$] Practical uses for a null filesystem
Date:
Thu, 12 Mar 2026 14:58:09 +0000
Description:
One of the first changes merged for the upcoming 7.0 release was nullfs ,
an empty filesystem that cannot actually contain any files. One might logically wonder why the kernel would need such a thing. It turns out,
though, that there are places where a null filesystem can come in handy.
For 7.0, nullfs will be used to make life a bit easier for init programs; future releases will likely use nullfs to increase the isolation
of kernel threads from the init process.
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Link to news story:
https://lwn.net/Articles/1062163/
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