Re: [PATCH 2/12] ksm: move pages_sharing updates

[Izik Eidus]

Hugh Dickins wrote:
> The pages_shared count is incremented and decremented when adding a node
> to and removing a node from the stable tree: easy to understand.  But the
> pages_sharing count was hard to follow, being adjusted in various places:
> increment and decrement it when adding to and removing from the stable tree.
>
> And the pages_sharing variable used to include the pages_shared, then those
> were subtracted when shown in the pages_sharing sysfs file: now keep it as
> an exclusive count of leaves hanging off the stable tree nodes, throughout.
>
> Signed-off-by: Hugh Dickins <hugh.dickins@xxxxxxxxxxxxx>
> ---
>
>   
ACK, (Code is simpler that way)
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