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 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 <[email protected]>
Acked-by: Kirill Tkhai <[email protected]>
Reviewed-by: Shakeel Butt <[email protected]>
Acked-by: Roman Gushchin <[email protected]>
Signed-off-by: Yang Shi <[email protected]>
---
mm/vmscan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 562e87cbd7a1..31d116ea59a9 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -536,7 +536,7 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl,
else
new_nr = atomic_long_read(&shrinker->nr_deferred[nid]);
- trace_mm_shrink_slab_end(shrinker, nid, freed, nr, new_nr, total_scan);
+ trace_mm_shrink_slab_end(shrinker, shrinkctl->nid, freed, nr, new_nr, total_scan);
return freed;
}
--
2.26.2