Re: [Xen-devel] [PATCH v4 4/9] sysctl: Make XEN_SYSCTL_numainfo a little more efficient

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

On Mon, 2015-03-09 at 22:27 -0400, Boris Ostrovsky wrote:
> Make sysctl NUMA topology query use fewer copies by combining some
> fields into a single structure and copying distances for each node
> in a single copy.
> 
> Instead of using max_node_index for passing number of nodes keep this
> value in num_nodes: almost all uses of max_node_index required adding
> or subtracting one to eventually get to number of nodes anyway.
> 
> Replace INVALID_NUMAINFO_ID with XEN_INVALID_MEM_SZ and add
> XEN_INVALID_NODE_DIST.
> 
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

Assuming the h/v guys are happy with the interface the tools side looks
like a valid wrapper to it:
        Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
        
Ian


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