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From: Stefan Metzmacher <[email protected]>
To: Jens Axboe <[email protected]>, [email protected]
Cc: [email protected], [email protected]
Subject: Re: [PATCH 1/2] io_uring: ensure recv and recvmsg handle MSG_WAITALL correctly
Date: Thu, 24 Mar 2022 01:32:24 +0100	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

Hi Jens,

> @@ -5524,12 +5542,22 @@ static int io_recv(struct io_kiocb *req, unsigned int issue_flags)
>   			return -EAGAIN;
>   		if (ret == -ERESTARTSYS)
>   			ret = -EINTR;
> +		if (ret > 0 && io_net_retry(sock, flags)) {
> +			sr->len -= ret;
> +			sr->buf += ret;
> +			sr->done_io += ret;
> +			return -EAGAIN;
> +		}
>   		req_set_fail(req);
>   	} else if ((flags & MSG_WAITALL) && (msg.msg_flags & (MSG_TRUNC | MSG_CTRUNC))) {
>   out_free:
>   		req_set_fail(req);

The change only affects retry based socket io in the main thread, correct?

The truncated mesages still trigger req_set_fail if MSG_WAITALL was set?

metze


  reply	other threads:[~2022-03-24  0:32 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-23 22:41 [PATCHSET v2 0/2] Fix MSG_WAITALL for IORING_OP_RECV/RECVMSG Jens Axboe
2022-03-23 22:41 ` [PATCH 1/2] io_uring: ensure recv and recvmsg handle MSG_WAITALL correctly Jens Axboe
2022-03-24  0:32   ` Stefan Metzmacher [this message]
2022-03-24  0:35     ` Jens Axboe
2022-03-23 22:41 ` [PATCH 2/2] io_uring: add flag for disabling provided buffer recycling Jens Axboe
2022-03-25  3:16 ` [PATCHSET v2 0/2] Fix MSG_WAITALL for IORING_OP_RECV/RECVMSG Constantine Gavrilov
2022-03-25 14:50   ` Jens Axboe
  -- strict thread matches above, loose matches on Subject: below --
2022-03-23 15:39 [PATCHSET " Jens Axboe
2022-03-23 15:39 ` [PATCH 1/2] io_uring: ensure recv and recvmsg handle MSG_WAITALL correctly Jens Axboe
2022-03-23 20:13   ` Pavel Begunkov
2022-03-23 20:15     ` Jens Axboe
2022-03-23 20:45     ` Constantine Gavrilov
2022-03-23 20:52       ` Pavel Begunkov
2022-03-23 21:24         ` Jens Axboe

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