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SubjectRe: [PATCH 4/6] Have zonelist contains structs with both a zone pointer and zone_idx
On Wed, 12 Sep 2007, Mel Gorman wrote:

> /*
> + * This struct contains information about a zone in a zonelist. It is stored
> + * here to avoid dereferences into large structures and lookups of tables
> + */
> +struct zoneref {
> + struct zone *zone; /* Pointer to actual zone */
> + int zone_idx; /* zone_idx(zoneref->zone) */
> +};


Well the structure is going to be 12 bytes wide. Since pointers have to be
aligned to 8 bytes we will effectively have to use 16 bytes anyways. There
is no additional memory use if we would be adding another 4 bytes.

But lets get this merged. We can sort this out later. Too many
oscillations already.
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