From: Adrian Bunk <bunk@kernel.org>
To: Paul Jackson <pj@sgi.com>
Cc: Paul Menage <menage@google.com>, linux-kernel@vger.kernel.org
Subject: Re: [2.6 patch] kernel/cgroup.c: remove dead code
Date: Fri, 26 Oct 2007 03:30:20 +0200 [thread overview]
Message-ID: <20071026013019.GB30533@stusta.de> (raw)
In-Reply-To: <20071025182425.1336064f.pj@sgi.com>
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
prev parent reply other threads:[~2007-10-26 1:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-24 16:25 [2.6 patch] kernel/cgroup.c: remove dead code Adrian Bunk
2007-10-24 16:30 ` Paul Menage
2007-10-24 17:07 ` Adrian Bunk
2007-10-24 17:13 ` Paul Menage
2007-10-24 17:34 ` Paul Jackson
2007-10-26 1:10 ` Paul Menage
2007-10-26 1:19 ` Adrian Bunk
2007-10-26 1:24 ` Paul Jackson
2007-10-26 1:26 ` Paul Menage
2007-10-26 1:37 ` Paul Jackson
2007-10-26 1:30 ` Adrian Bunk [this message]
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