From: Jens Axboe <axboe@kernel.dk>
To: io-uring@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>, stable@vger.kernel.org
Subject: [PATCH 11/18] io-wq: assign NUMA node locality if appropriate
Date: Fri, 16 Oct 2020 10:02:17 -0600 [thread overview]
Message-ID: <20201016160224.1575329-12-axboe@kernel.dk> (raw)
In-Reply-To: <20201016160224.1575329-1-axboe@kernel.dk>
There was an assumption that kthread_create_on_node() would properly set
NUMA affinities in terms of CPUs allowed, but it doesn't. Make sure we
do this when creating an io-wq context on NUMA.
Cc: stable@vger.kernel.org
Stefan Metzmacher <metze@samba.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
fs/io-wq.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/io-wq.c b/fs/io-wq.c
index 0a182f1333e8..149fd2f0927e 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -676,6 +676,7 @@ static bool create_io_worker(struct io_wq *wq, struct io_wqe *wqe, int index)
kfree(worker);
return false;
}
+ kthread_bind_mask(worker->task, cpumask_of_node(wqe->node));
raw_spin_lock_irq(&wqe->lock);
hlist_nulls_add_head_rcu(&worker->nulls_node, &wqe->free_list);
--
2.28.0
parent reply other threads:[~2020-10-16 16:02 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20201016160224.1575329-1-axboe@kernel.dk>]
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