Re: [PATCH v2] io_uring/io-wq: Use set_bit() and test_bit() at worker->flags

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Le 07/05/2024 à 17:09, Jens Axboe a écrit :
On 5/7/24 9:05 AM, Breno Leitao wrote:
@@ -631,7 +631,7 @@ static int io_wq_worker(void *data)
  	bool exit_mask = false, last_timeout = false;
  	char buf[TASK_COMM_LEN];
- worker->flags |= (IO_WORKER_F_UP | IO_WORKER_F_RUNNING);
+	set_mask_bits(&worker->flags, 0, IO_WORKER_F_UP | IO_WORKER_F_RUNNING);

This takes a mask, no? I think this should be:

set_mask_bits(&worker->flags, 0, BIT(IO_WORKER_F_UP) | BIT(IO_WORKER_F_RUNNING);

Hmm?


Because of that:

 enum {
-	IO_WORKER_F_UP		= 1,	/* up and active */
-	IO_WORKER_F_RUNNING	= 2,	/* account as running */
-	IO_WORKER_F_FREE	= 4,	/* worker on free list */
-	IO_WORKER_F_BOUND	= 8,	/* is doing bounded work */
+	IO_WORKER_F_UP		= 0,	/* up and active */
+	IO_WORKER_F_RUNNING	= 1,	/* account as running */
+	IO_WORKER_F_FREE	= 2,	/* worker on free list */
+	IO_WORKER_F_BOUND	= 3,	/* is doing bounded work */
 };

yes, now, BIT() is needed.


CJ




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