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Subjectrmmod whilst reading/writing sysctl

Where is the prevention of module unload whilst a sysctl from a module is being read/written ?

sysctl syscall is protected by BKL, but I can't see similar code for the cat >/proc/sys/...

If there is none, how do I support sysctl from a module safely ?


"I'm dismayed whenever libertarianism and programming are associated; in my
mind, it is as nebulous as associating people who write books as communists or
those who read newspapers as capitalists."
- graydon
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