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

[H. Peter Anvin]

Alan Cox wrote:
> 
> [Disclaimer: There is a patent issue around this technique but its not
> one that will impact GPL code as permissions are given for GPL use.]
> 

glibc is (and has to be) LGPL.

Anyway, it seems absolutely insane that having a programmable threshold 
for spinning is patented...

	-hpa