linux-kernel - [RFC PATCH 14/20] mm: Allocate kcompactd on its node

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Message-ID: <20240726215701.19459-15-frederic@kernel.org>
Date: Fri, 26 Jul 2024 23:56:50 +0200
From: Frederic Weisbecker <frederic@...nel.org>
To: LKML <linux-kernel@...r.kernel.org>
Cc: Frederic Weisbecker <frederic@...nel.org>,
	Michal Hocko <mhocko@...nel.org>,
	Vlastimil Babka <vbabka@...e.cz>,
	linux-mm@...ck.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [RFC PATCH 14/20] mm: Allocate kcompactd on its node

kcompactd runs preferrably on a specific node. Allocate its task
structure accordingly for better memory locality.

Signed-off-by: Frederic Weisbecker <frederic@...nel.org>
---
 mm/compaction.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index 64a6486f06e1..dc4347c4e352 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -3252,7 +3252,7 @@ void __meminit kcompactd_run(int nid)
 	if (pgdat->kcompactd)
 		return;
 
-	pgdat->kcompactd = kthread_create(kcompactd, pgdat, "kcompactd%d", nid);
+	pgdat->kcompactd = kthread_create_on_node(kcompactd, pgdat, nid, "kcompactd%d", nid);
 	if (IS_ERR(pgdat->kcompactd)) {
 		pr_err("Failed to start kcompactd on node %d\n", nid);
 		pgdat->kcompactd = NULL;
-- 
2.45.2