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VFS Module Autoloading
In -current we now have kernel modules for most file systems, which
are built and installed by default. In addition, the kernel
automatically attempts to dynamically load the appropriate module if
support is not already present. This is a good and useful feature.
However, there are two (minor) problems with this: the base system
defaults to the old LKM tools (modload, modstat, etc) and the
modularised file systems aren't all well-tested.
This isn't a big deal, but it violates the principle of least
surprise, I think. If new-style modules aren't the default in terms of
support tools being built, why should the kernel default to sucking
them in, especially given that there's no explicit means of loading
them via userland (new-style modload) or telling that they're been
loaded (new-style modstat)?
It's a very minor issue, but I'm wondering whether we should make the
autoloading sysctlable and default it to off until LKMs are banished
for good and we have better tested the modules themselves.
Please CC me as I'm not subscribed.
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