Re: [PATCH v2 0/3] Support memory hot-delete to boot memory

[David Rientjes]

On Mon, 8 Apr 2013, Toshi Kani wrote:

> > So we don't need this new code if CONFIG_MEMORY_HOTPLUG=n?  If so, can
> > we please arrange for it to not be present if the user doesn't need it?
> 
> Good point!  Yes, since the new function is intended for memory
> hot-delete and is only called from __remove_pages() in
> mm/memory_hotplug.c, it should be added as #ifdef CONFIG_MEMORY_HOTPLUG
> in PATCH 2/3.
> 
> I will make the change, and send an updated patch to PATCH 2/3.
> 

It should actually depend on CONFIG_MEMORY_HOTREMOVE, but the pseries 
OF_RECONFIG_DETACH_NODE code seems to be the only code that doesn't 
make that distinction.  CONFIG_MEMORY_HOTREMOVE acts as a wrapper to 
protect configs that don't have ARCH_ENABLE_MEMORY_HOTREMOVE, so we'll 
want to keep it around and presumably that powerpc code depends on it as 
well.
--
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/