Re: x86_64: remove debug code from arch_add_memory()

From: Gary Hade
Date: Wed Oct 29 2008 - 12:43:36 EST


On Wed, Oct 29, 2008 at 09:30:53AM +0100, Ingo Molnar wrote:
>
> * Gary Hade <garyhade@xxxxxxxxxx> wrote:
>
> >
> > Gets rid of dmesg spam created during physical memory hot-add which
> > will very likely confuse users. The change removes what appears to
> > be debugging code which I assume was unintentionally included in:
> > x86: arch/x86/mm/init_64.c printk fixes
> > commit 10f22dde556d1ed41d55355d1fb8ad495f9810c8
> >
> > Signed-off-by: Gary Hade <garyhade@xxxxxxxxxx>
> >
> > ---
> > arch/x86/mm/init_64.c | 1 -
> > 1 file changed, 1 deletion(-)
>
> applied to tip/x86/urgent, thanks Gary!
>
> Note, i changed it slightly: instead of removing it completely i
> changed it to WARN_ON_ONCE(ret), to show us when __add_pages() fails.
> (which is what the original intention was there)

No problem! That's obviously better.

> This does not trigger in your tests, right?

Correct. I just did a memory hot-add with that change and the
WARN_ON_ONCE(ret) did not write anything to dmesg.

Thanks,
Gary

--
Gary Hade
System x Enablement
IBM Linux Technology Center
503-578-4503 IBM T/L: 775-4503
garyhade@xxxxxxxxxx
http://www.ibm.com/linux/ltc

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