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io-wq: remove unused io-wq refcounting
iowq->refs is initialised to one and killed on exit, so it's not used and we can kill it. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/401007393528ea7c102360e69a29b64498e15db2.1623634181.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -109,8 +109,6 @@ struct io_wq {
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struct io_wq_hash *hash;
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refcount_t refs;
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atomic_t worker_refs;
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struct completion worker_done;
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@ -949,7 +947,6 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data)
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}
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wq->task = get_task_struct(data->task);
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refcount_set(&wq->refs, 1);
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atomic_set(&wq->worker_refs, 1);
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init_completion(&wq->worker_done);
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return wq;
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@ -1038,8 +1035,7 @@ void io_wq_put_and_exit(struct io_wq *wq)
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WARN_ON_ONCE(!test_bit(IO_WQ_BIT_EXIT, &wq->state));
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io_wq_exit_workers(wq);
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if (refcount_dec_and_test(&wq->refs))
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io_wq_destroy(wq);
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io_wq_destroy(wq);
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}
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static bool io_wq_worker_affinity(struct io_worker *worker, void *data)
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