Re: [QUICKLIST 1/4] Generic quicklist implementation

[Paul Mundt <lethal@linux-sh.org>]

On Tue, Mar 13, 2007 at 12:13:30AM -0700, Christoph Lameter wrote:
> --- linux-2.6.21-rc3-mm2.orig/mm/Kconfig	2007-03-12 22:49:21.000000000 -0700
> +++ linux-2.6.21-rc3-mm2/mm/Kconfig	2007-03-13 00:09:50.000000000 -0700
> @@ -220,3 +220,8 @@ config DEBUG_READAHEAD
>  
>  	  Say N for production servers.
>  
> +config QUICKLIST
> +	bool
> +	default y if NR_QUICK != 0
> +
> +

This doesn't work, and so CONFIG_QUICKLIST is always set. The NR_QUICK
thing seems a bit backwards anyways, perhaps it would make more sense to
have architectures set CONFIG_GENERIC_QUICKLIST in the same way that the
other GENERIC_xxx bits are defined, and then set NR_QUICK based off of
that. It's obviously going to be 2 or 1 for most people, and x86 seems to
be the only one that needs 2.

How about this?

--

diff --git a/mm/Kconfig b/mm/Kconfig
index 7942b33..2f20860 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -163,3 +163,8 @@ config ZONE_DMA_FLAG
 	default "0" if !ZONE_DMA
 	default "1"
 
+config NR_QUICK
+	int
+	depends on GENERIC_QUICKLIST
+	default "2" if X86
+	default "1"