On Tue, Feb 9, 2021 at 9:47 AM Yang Shi [off-list ref] 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

tracing

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 <redacted>
Acked-by: Kirill Tkhai <redacted>
Signed-off-by: Yang Shi <redacted>

Reviewed-by: Shakeel Butt <redacted>