Re: [PATCH v4 0/7] kernel tinification: optionally compile out splice family of syscalls (splice, vmsplice, tee and sendfile)

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David Miller <davem@xxxxxxxxxxxxx> writes:

> From: ebiederm@xxxxxxxxxxxx (Eric W. Biederman)
> Date: Tue, 25 Nov 2014 13:16:44 -0600
>
>> David Miller <davem@xxxxxxxxxxxxx> writes:
>> 
>>> From: josh@xxxxxxxxxxxxxxxx
>>> Date: Tue, 25 Nov 2014 10:53:10 -0800
>>>
>>>> It's not a "slippery slope"; it's been our standard practice for ages.
>>>
>>> We've never put an entire class of generic system calls behind
>>> a config option.
>> 
>> CONFIG_SYSVIPC has been in the kernel as long as I can remember.
>> 
>> I seem to remember a plan to remove that code once userspace had
>> finished migrating to more unixy interfaces to ipc.  But in 20 years
>> that migration does does not seem to have finished, or even look
>> like it ever will.
>> 
>> But if we started a slippery slope it was long long ago.
>
> Fair enough.
>
> Would be amusing if these tiny systems have it enabled.

It would.

In practice when I was playing in that space I had a hard time
justifying CONFIG_NET and CONFIG_INET.  Despite writing a network
bootloader to use with kexec.

Eric
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