From: Stefan Roesch <shr@devkernel.io>
To: Jens Axboe <axboe@kernel.dk>
Cc: io-uring@vger.kernel.org, kernel-team@fb.com,
ammarfaizi2@gnuweeb.org,
Olivier Langlois <olivier@trillion01.com>,
Jakub Kicinski <kuba@kernel.org>
Subject: Re: [PATCH v10 2/5] io-uring: add napi busy poll support
Date: Thu, 27 Apr 2023 10:34:14 -0700 [thread overview]
Message-ID: <qvqwy1md9ql5.fsf@devbig1114.prn1.facebook.com> (raw)
In-Reply-To: <64a48f3b-b231-7b9e-441b-6022693377f3@kernel.dk>
Jens Axboe <axboe@kernel.dk> writes:
> On 4/26/23 7:41?PM, Jens Axboe wrote:
>
> I'd probably also do this:
>
>
> diff --git a/io_uring/napi.c b/io_uring/napi.c
> index ca12ff5f5611..35a29fd9afbc 100644
> --- a/io_uring/napi.c
> +++ b/io_uring/napi.c
> @@ -95,12 +95,17 @@ static bool io_napi_busy_loop_should_end(void *p, unsigned long start_time)
> {
> struct io_wait_queue *iowq = p;
>
> - return signal_pending(current) ||
> - io_should_wake(iowq) ||
> - io_napi_busy_loop_timeout(start_time, iowq->napi_busy_poll_to);
> + if (signal_pending(current))
> + return true;
> + if (io_should_wake(iowq))
> + return true;
> + if (io_napi_busy_loop_timeout(start_time, iowq->napi_busy_poll_to))
> + return true;
> + return false;
> }
>
> as that is easier to read.
>
Will be changed in the next version.
next prev parent reply other threads:[~2023-04-27 17:34 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-25 18:18 [PATCH v10 0/5] io_uring: add napi busy polling support Stefan Roesch
2023-04-25 18:18 ` [PATCH v10 1/5] io-uring: move io_wait_queue definition to header file Stefan Roesch
2023-04-25 18:18 ` [PATCH v10 2/5] io-uring: add napi busy poll support Stefan Roesch
2023-04-27 1:41 ` Jens Axboe
2023-04-27 1:46 ` Jens Axboe
2023-04-27 17:34 ` Stefan Roesch [this message]
2023-04-27 1:50 ` Jens Axboe
2023-04-27 1:59 ` Jens Axboe
2023-04-27 18:21 ` Stefan Roesch
2023-04-27 17:44 ` Stefan Roesch
2023-04-27 16:27 ` Stefan Roesch
2023-04-28 1:09 ` Jens Axboe
2023-04-27 2:56 ` Ammar Faizi
2023-04-27 11:16 ` Jens Axboe
2023-04-25 18:18 ` [PATCH v10 3/5] io-uring: add sqpoll support for napi busy poll Stefan Roesch
2023-04-25 18:18 ` [PATCH v10 4/5] io_uring: add register/unregister napi function Stefan Roesch
2023-04-25 18:18 ` [PATCH v10 5/5] io_uring: add prefer busy poll to register and unregister napi api Stefan Roesch
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