On Mon, 27 Aug 2007, Andrew Morton wrote:

Perhaps including sample output would help to explain wtf this does. 
afaict it will spit out a bitmap like:

possible: 11110000
on-line: 11010000
normal memory: 01110000
etc

or something like that, dunno.  Please document this interface for us?

We also talked about having nodelist_scnprintf call bitmap_scnlistprintf. 
I'd expect that to be a separate patch. The output should then be more 
like

possible: 0-4
online: 0-1, 3
normal memory: 1-3

quoted

+	"normal memory:",
+#ifdef CONFIG_HIGHMEM
+	"high memory:",

Do we really want a space in here?  It makes parsing somewhat
harder.  Do the other files in /sys/devices/system/node take care to avoid
doing this?

This is the first file in that directory. The files in
/sys/devices/system/node/nodeX  use _ there.

And what happened to the one-value-per-sysfs file rule?  Did we already
break it so much in /sys/devices/system/node that we've just given up?

/sys/devices/system/node/nodeX/meminfo is like /proc/meminfo containing 
multiple settings.

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