linux-kernel - Re: [PATCH] io_uring: A new function has been defined to make get/put exist in pairs

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Date:   Thu, 6 Jul 2023 08:05:33 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Lu Hongfei <luhongfei@...o.com>,
        Pavel Begunkov <asml.silence@...il.com>,
        io-uring@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     opensource.kernel@...o.com
Subject: Re: [PATCH] io_uring: A new function has been defined to make get/put
 exist in pairs

On 7/6/23 3:32?AM, Lu Hongfei wrote:
> A new function called io_put_task_refs has been defined for pairing
> with io_get_task_refs.
> 
> In io_submit_sqes(), when req is not fully sent(i.e. left != 0), it is
> necessary to call the io_put_task_refs() to recover the current process's
> cached_refs and pair it with the io_get_task_refs(), which is easy to
> understand and looks more regular.

No point having a helper for just a single caller.

-- 
Jens Axboe