Re: [PATCH 00/10] jump label: introduce very_[un]likely + cleanups+ docs

[Steven Rostedt]

On Wed, 2012-02-22 at 10:56 -0500, Jason Baron wrote:
> On Wed, Feb 22, 2012 at 10:54:03AM -0500, Steven Rostedt wrote:
> > On Wed, 2012-02-22 at 10:42 -0500, Jason Baron wrote:
> > 
> > > Do you have 'CONFIG_CC_OPTIMIZE_FOR_SIZE' set?
> > 
> > Yes I do :-p
> > 
> > But that's because the distro config I started with had it set too.
> > 
> > -- Steve
> > 
> > 
> 
> Right, with CONFIG_CC_OPTIMIZE_FOR_SIZE unset, which is the default, at
> least on x86, I have not seen a single case of the 'jmp;jmp'.
> 

What the config default is, is unimportant. It only maters to kernel
hackers that build our own kernels. What's important is what distros do.

On debian testing I have in config-3.0.0-1-amd64:

CONFIG_CC_OPTIMIZE_FOR_SIZE=y


Although it is not set on the latest fedora 16 config.

Someone should tell debian to turn it off.

-- Steve


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