Re: [2.6 patch] kernel/cgroup.c: remove dead code

From: Adrian Bunk
Date: Thu Oct 25 2007 - 21:30:04 EST


On Thu, Oct 25, 2007 at 06:24:25PM -0700, Paul Jackson wrote:
> Paul M wrote:
> > Sounds reasonable to me. Is there any kind of compile-time assert
> > macro in the kernel?
>
> Check out the assembly code generated by:
>
> BUG_ON(sizeof(cgrp->root->release_agent_path) < PATH_MAX));
>
> (Hint: you can't find it ;)
>
> It -is- compile time!

But when the condition is fulfilled, you get a runtime error, not a
compile error.

cu
Adrian

--

"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed

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