Re: [PATCH 2/2] sysctl: remove sysctl syscall

[Cong Wang]

On 10/20/10 00:00, Eric W. Biederman wrote:
> To the best of my knowledge the last and user of sys_sysctl is the glibc
> ioperm (my apologies I mispoke when I said iopl) implementation on arm.
> Not that people run around calling ioperm very often in any distro.


I saw that in Changelog of glibc too, but that was back to 2000, 10 years
past, I don't see any code using sysctl() in glibc now, except sys_sysctl()
itself, of course.

> All of that said I think disabling sys_sysctl by default now is totally
> reasonable.  If there is a percentage in removing the code we can worry
> about that later.  Perhaps we should add a CONFIG_CRUFT and move
> sys_sysctl under there.  Binary compatibility that nothing needs but
> that we actually have code for just in case.

But you put sysctl in features-removal-schedule.txt 3 years ago. :)

I believe they should see the kernel warnings if they are still using
sysctl.

Thanks.
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