diff mbox series

[v9,01/13] mm: vmscan: use nid from shrink_control for tracepoint

Message ID 20210310174603.5093-2-shy828301@gmail.com (mailing list archive)
State New, archived
Headers show
Series Make shrinker's nr_deferred memcg aware | expand

Commit Message

Yang Shi March 10, 2021, 5:45 p.m. UTC 
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 <vbabka@suse.cz>
Acked-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Yang Shi <shy828301@gmail.com>
---
 mm/vmscan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

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;
 }