[PATCH] powerpc: Add jump label support

[Steven Rostedt]

On Mon, 2010-11-08 at 15:12 +1100, Michael Ellerman wrote:
> This patch adds support for the new "jump label" feature.

Darn it! I wanted to port this!!!

;-)

> 
> Built for 64 & 32 bit, tested on 64 bit. Survives a kernel build under
> perf with all tracepoints enabled, and manual inspection of the patched
> code looks right. But still, lightly tested, YMMV.
> 
> Unlike x86 and sparc we just merrily patch the code with no locks etc,
> as far as I know this is safe, but I'm not really sure what the x86/sparc
> code is protecting against so maybe it's not.

Thanks, I'll give it a test on my electra as soon as I get a gcc 4.5.1
cross compiler working.

-- Steve