Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.9 213/391] io-wq: assign NUMA node locality if appropriate | Date | Tue, 3 Nov 2020 21:34:24 +0100 |
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From: Jens Axboe <axboe@kernel.dk>
commit a8b595b22d31f83b715511f59012f152a269d83b upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- fs/io-wq.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/io-wq.c +++ b/fs/io-wq.c @@ -654,6 +654,7 @@ static bool create_io_worker(struct io_w 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);
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