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Re: [PATCH v7 1/3] xen/mm: Introduce per-node free page counter
- To: Bernhard Kaindl <bernhard.kaindl@xxxxxxxxxx>
- From: Baptiste Le Duc <baptiste.le-duc@xxxxxxxxxx>
- Date: Mon, 09 Nov 2026 16:38:45 +0100
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- Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Julien Grall <julien@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Alejandro Vallejo <alejandro.vallejo@xxxxxxxxx>
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On Fri, 08 May 2026 21:27:57 +0100, Bernhard Kaindl
<bernhard.kaindl@xxxxxxxxxx> wrote:
> Add node_avail_pages[], updated under heap_lock in sync with
> avail[node][zone] to cache the per-node sum of free pages.
>
> Use it in avail_node_heap_pages() to avoid summing all zones on each
> call. Guard it with nodeid < MAX_NUMNODES and node_online(nodeid).
>
>
> [...]
Reviewed-by: Baptiste Le Duc <baptiste.le-duc@xxxxxxxxxx>
--
Baptiste Le Duc <baptiste.le-duc@xxxxxxxxxx>
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