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Date:   Tue, 9 Feb 2021 11:14:14 -0800
From:   Shakeel Butt <>
To:     Yang Shi <>
Cc:     Roman Gushchin <>, Kirill Tkhai <>,
        Vlastimil Babka <>,
        Dave Chinner <>,
        Johannes Weiner <>,
        Michal Hocko <>,
        Andrew Morton <>,
        Linux MM <>,
        linux-fsdevel <>,
        LKML <>
Subject: Re: [v7 PATCH 01/12] mm: vmscan: use nid from shrink_control for tracepoint

On Tue, Feb 9, 2021 at 9:47 AM Yang Shi <> wrote:
> The tracepoint's nid should show what node the shrink happens on, the start tracepoint
> uses nid from shrinkctl, but the nid might be set to 0 before end tracepoint if the
> shrinker is not NUMA aware, so the traceing


> log may show the shrink happens on one
> node but end up on the other node.  It seems confusing.  And the following patch
> will remove using nid directly in do_shrink_slab(), this patch also helps cleanup
> the code.
> Acked-by: Vlastimil Babka <>
> Acked-by: Kirill Tkhai <>
> Signed-off-by: Yang Shi <>

Reviewed-by: Shakeel Butt <>

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