> However, tmpfs appears to cover the functionality provided by ramfs.
> Are there any uses for ramfs which can't be handled by tmpfs?
Nothing I know of.
> The only thing I could think of was "what if you don't have a
> swap device up and running". Seems it doesn't need one :))
Yes and no. tmpfs has a little bit overhead for the noswap case but
this overhead is in the kernel anyways for shared anon mappings. The
whole vm is using swap unconditionally.
Greetings
Christoph
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