[PATCH] io-wq: delete dead lock shuffling code

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We used to have more code around the work loop, but now the goto and
lock juggling just makes it less readable than it should. Get rid of it.

Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>

---

Came across this one while looking at related code.

diff --git a/fs/io-wq.c b/fs/io-wq.c
index 1efb134c98b7..013e12b9fabf 100644
--- a/fs/io-wq.c
+++ b/fs/io-wq.c
@@ -547,7 +547,7 @@ static void io_worker_handle_work(struct io_worker *worker)
 
 	do {
 		struct io_wq_work *work;
-get_next:
+
 		/*
 		 * If we got some work, mark us as busy. If we didn't, but
 		 * the list isn't empty, it means we stalled on hashed work.
@@ -606,11 +606,6 @@ static void io_worker_handle_work(struct io_worker *worker)
 				spin_unlock_irq(&wq->hash->wait.lock);
 				if (wq_has_sleeper(&wq->hash->wait))
 					wake_up(&wq->hash->wait);
-				raw_spin_lock(&wqe->lock);
-				/* skip unnecessary unlock-lock wqe->lock */
-				if (!work)
-					goto get_next;
-				raw_spin_unlock(&wqe->lock);
 			}
 		} while (work);
 
-- 
Jens Axboe




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