[PATCH] Use uname not sysctl to get the kernel revision

[Eric W. Biederman]

Theodore Tso <tytso@mit.edu> writes:

> That may be true, but it doesn't answer the question, what's the cost
> of leaving in sys_sysctl in there for now?  

Among other things the implementation of all of: 
CTL_KERN, {KERN_OSTYPE, KERN_OSRELEASE, KERN_OSREV, KERN_VERSION,
          KERN_SECUREMASK,KERN_PROF,KERN_NODENAME,KERN_DOMAINNAME }
are broken in kernel/sysctl.c because the locking is missing.

Eric