Commit 382cb030 authored by Pavel Begunkov's avatar Pavel Begunkov Committed by Jens Axboe
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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: default avatarPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/401007393528ea7c102360e69a29b64498e15db2.1623634181.git.asml.silence@gmail.com


Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent c7f405d6

fs/io-wq.c

+1 −5
Original line number Diff line number Diff line
@@ -109,8 +109,6 @@ struct io_wq { 


	struct io_wq_hash *hash;



	refcount_t refs;



	atomic_t worker_refs;

	struct completion worker_done;
@@ -949,7 +947,6 @@ struct io_wq *io_wq_create(unsigned bounded, struct io_wq_data *data) 
	}



	wq->task = get_task_struct(data->task);

	refcount_set(&wq->refs, 1);

	atomic_set(&wq->worker_refs, 1);

	init_completion(&wq->worker_done);

	return wq;
@@ -1038,7 +1035,6 @@ void io_wq_put_and_exit(struct io_wq *wq) 
	WARN_ON_ONCE(!test_bit(IO_WQ_BIT_EXIT, &wq->state));



	io_wq_exit_workers(wq);

	if (refcount_dec_and_test(&wq->refs))

	io_wq_destroy(wq);

}