From: Jens Axboe <axboe@kernel.dk>
To: Jakub Kicinski <kuba@kernel.org>
Cc: netdev <netdev@vger.kernel.org>,
Eric Dumazet <edumazet@google.com>,
Neal Cardwell <ncardwell@google.com>
Subject: Re: [PATCH v3] tcp: pass back data left in socket after receive
Date: Fri, 29 Apr 2022 21:08:14 -0600 [thread overview]
Message-ID: <38ae32bb-59e5-3e5e-6d22-245e757e428a@kernel.dk> (raw)
In-Reply-To: <20220429191538.713da873@kernel.org>
On 4/29/22 8:15 PM, Jakub Kicinski wrote:
> On Thu, 28 Apr 2022 18:45:06 -0600 Jens Axboe wrote:
>> This is currently done for CMSG_INQ, add an ability to do so via struct
>> msghdr as well and have CMSG_INQ use that too. If the caller sets
>> msghdr->msg_get_inq, then we'll pass back the hint in msghdr->msg_inq.
>>
>> Rearrange struct msghdr a bit so we can add this member while shrinking
>> it at the same time. On a 64-bit build, it was 96 bytes before this
>> change and 88 bytes afterwards.
>>
>> Reviewed-by: Eric Dumazet <edumazet@google.com>
>> Signed-off-by: Jens Axboe <axboe@kernel.dk>
>
> Commit f94fd25cb0aa ("tcp: pass back data left in socket after
> receive") in net-next now, thanks!
Great, thanks Jakub! I'll base on this for the io_uring change.
--
Jens Axboe
prev parent reply other threads:[~2022-04-30 3:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-29 0:45 [PATCH v3] tcp: pass back data left in socket after receive Jens Axboe
2022-04-30 2:15 ` Jakub Kicinski
2022-04-30 3:08 ` Jens Axboe [this message]
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