netdev - Re: [RFC PATCH v1 1/3] liburing: add api to set napi busy poll timeout

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Message-ID: <qvqwzgd2abu8.fsf@dev0134.prn3.facebook.com>
Date:   Mon, 07 Nov 2022 09:54:48 -0800
From:   Stefan Roesch <shr@...kernel.io>
To:     Ammar Faizi <ammarfaizi2@...weeb.org>
Cc:     Facebook Kernel Team <kernel-team@...com>,
        Jens Axboe <axboe@...nel.dk>,
        Olivier Langlois <olivier@...llion01.com>,
        Jakub Kicinski <kuba@...nel.org>,
        netdev Mailing List <netdev@...r.kernel.org>,
        io-uring Mailing List <io-uring@...r.kernel.org>
Subject: Re: [RFC PATCH v1 1/3] liburing: add api to set napi busy poll timeout


Ammar Faizi <ammarfaizi2@...weeb.org> writes:

> On 11/4/22 3:40 AM, Stefan Roesch wrote:
>> This adds the two functions to register and unregister the napi busy
>> poll timeout:
>> - io_uring_register_busy_poll_timeout
>> - io_uring_unregister_busy_poll_timeout
>> Signed-off-by: Stefan Roesch <shr@...kernel.io>
>> ---
>>   src/include/liburing.h          |  3 +++
>>   src/include/liburing/io_uring.h |  4 ++++
>>   src/register.c                  | 12 ++++++++++++
>>   3 files changed, 19 insertions(+)
>> diff --git a/src/include/liburing.h b/src/include/liburing.h
>> index 12a703f..ef2510e 100644
>> --- a/src/include/liburing.h
>> +++ b/src/include/liburing.h
>> @@ -235,6 +235,9 @@ int io_uring_register_sync_cancel(struct io_uring *ring,
>>   int io_uring_register_file_alloc_range(struct io_uring *ring,
>>   					unsigned off, unsigned len);
>>   +int io_uring_register_busy_poll_timeout(struct io_uring *ring, unsigned int
>> to);
>> +int io_uring_unregister_busy_poll_timeout(struct io_uring *ring);
>> +
>
> If you export a non inline function, you should also update the liburing.map
> file.

In version 2 of the patch, the file liburing.map is updated.