Re: [PATCH] sysctl: Allow /proc/sys without sys_sysctl

[email protected] (Eric W. Biederman) writes:

> Since sys_sysctl is deprecated start allow it to be compiled out.
> This should catch any remaining user space code that cares,

I tried this long ago, but found that glibc uses sysctl in each
program to get the kernel version. It probably handles ENOSYS,
but there might be slowdowns or subtle problems from it not knowing
the kernel version.

So I think it's ok to remove the big sysctl, but at a very minimal
replacement that just handles (CTL_KERN, KERN_VERSION) is needed.

Also it's useful to printk for the rest at least for some time 
so we know what uses it.

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Follow-Ups:
- Re: [PATCH] sysctl: Allow /proc/sys without sys_sysctl
  - From: [email protected] (Eric W. Biederman)

References:
- [PATCH] sysctl: Allow /proc/sys without sys_sysctl
  - From: [email protected] (Eric W. Biederman)

Prev by Date: Re: RFC: cleaning up the in-kernel headers
Next by Date: Re: RFC: cleaning up the in-kernel headers
Previous by thread: [PATCH] sysctl: Scream if someone uses sys_sysctl
Next by thread: Re: [PATCH] sysctl: Allow /proc/sys without sys_sysctl
Index(es):
- Date
- Thread

[Index of Archives] [Kernel Newbies] [Netfilter] [Bugtraq] [Photo] [Stuff] [Gimp] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Video 4 Linux] [Linux for the blind] [Linux Resources]