From nobody Mon Feb 9 05:29:14 2026 Received: from mxct.zte.com.cn (mxct.zte.com.cn [58.251.27.85]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C38CD1632D9; Fri, 7 Mar 2025 06:53:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=58.251.27.85 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741330391; cv=none; b=kc7d+g4VnHAz6stc8otRxr1ImTU4Ra4cBteQd2i3HqrN82wqCmDUkyg2sT3Y82b6X2VflD4Nz9qKxWJxsu0aB5Jy7mNTSdUhlygAGdF2fP4HLWFowytW0GACoYg4Gw6/YZXOysIP7jjvR1gqUQqHhKt5o62NTuRaq9bJA4s9vuQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1741330391; c=relaxed/simple; bh=YxNEoZy8V/legAk6eKfe5h7dQkd9rZHUa4cSEYJUzaA=; h=Date:Message-ID:Mime-Version:From:To:Cc:Subject:Content-Type; b=hj5Z/108Fiai6PGo0iWCDKCfb7PGl4mEXz/h6C+QrwZUZaE8T0IZW2A9FKV9HD/ULGzRcYPjWFvL+mWMI5H6NTBhlscOdYcpdxGT4b8HtWHf8p1CFcG8YAMkQjcDjlCshIuxzhlQ3WkHw4TxfCcF87NrslvJYQ5JWO89T7T/9yI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zte.com.cn; spf=pass smtp.mailfrom=zte.com.cn; arc=none smtp.client-ip=58.251.27.85 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zte.com.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zte.com.cn Received: from mxde.zte.com.cn (unknown [10.35.20.121]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mxct.zte.com.cn (FangMail) with ESMTPS id 4Z8H6b1PVPzKhf; Fri, 7 Mar 2025 14:52:55 +0800 (CST) Received: from mxhk.zte.com.cn (unknown [192.168.250.138]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mxde.zte.com.cn (FangMail) with ESMTPS id 4Z8H6S3fcrzBRHKM; Fri, 7 Mar 2025 14:52:48 +0800 (CST) Received: from mse-fl1.zte.com.cn (unknown [10.5.228.132]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mxhk.zte.com.cn (FangMail) with ESMTPS id 4Z8H6H0K84z5B1Jw; Fri, 7 Mar 2025 14:52:39 +0800 (CST) Received: from njb2app05.zte.com.cn ([10.55.22.121]) by mse-fl1.zte.com.cn with SMTP id 5276qCok027585; Fri, 7 Mar 2025 14:52:12 +0800 (+08) (envelope-from jiang.kun2@zte.com.cn) Received: from mapi (njy2app01[null]) by mapi (Zmail) with MAPI id mid204; Fri, 7 Mar 2025 14:52:15 +0800 (CST) Date: Fri, 7 Mar 2025 14:52:15 +0800 (CST) X-Zmail-TransId: 2af967ca979f331-7ece5 X-Mailer: Zmail v1.0 Message-ID: <20250307145215126GSrPAWuFO9YCy9V3ZZYH5@zte.com.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 From: To: , , , , Cc: , , , , , , , , Subject: =?UTF-8?B?W1BBVENIIGxpbnV4IG5leHQgdjNdIERvY3MvemhfQ046IFRyYW5zbGF0ZSBtc2dfemVyb2NvcHkucnN0IHRvCiBTaW1wbGlmaWVkIENoaW5lc2U=?= Content-Type: text/plain; charset="utf-8" X-MAIL: mse-fl1.zte.com.cn 5276qCok027585 X-Fangmail-Anti-Spam-Filtered: true X-Fangmail-MID-QID: 67CA97C5.000/4Z8H6b1PVPzKhf Content-Transfer-Encoding: quoted-printable From: Wang Yaxin translate the "msg_zerocopy.rst" into Simplified Chinese. Update to commit bac2cac12c26("docs: net: description of MSG_ZEROCOPY for AF_VSOCK") Signed-off-by: Wang Yaxin Signed-off-by: Jiang Kun Reviewed-by: Yanteng Si --- v2->v3: https://lore.kernel.org/all/0e66b23c-7238-474a-96d8-b069406185e2@linux.dev/ 1. add punctuation at the end of commit messages. 2. delete the redundant blank lines. 3. add a symbol '-' at the front of the signature section. .../zh_CN/networking/msg_zerocopy.rst | 223 ++++++++++++++++++ 1 file changed, 223 insertions(+) create mode 100644 Documentation/translations/zh_CN/networking/msg_zerocop= y.rst diff --git a/Documentation/translations/zh_CN/networking/msg_zerocopy.rst b= /Documentation/translations/zh_CN/networking/msg_zerocopy.rst new file mode 100644 index 000000000000..7362b8514e70 --- /dev/null +++ b/Documentation/translations/zh_CN/networking/msg_zerocopy.rst @@ -0,0 +1,223 @@ +.. SPDX-License-Identifier: GPL-2.0 + +.. include:: ../disclaimer-zh_CN.rst + +:Original: Documentation/networking/msg_zerocopy.rst + +:=E7=BF=BB=E8=AF=91: + + =E7=8E=8B=E4=BA=9A=E9=91=AB Wang Yaxin + +:=E6=A0=A1=E8=AF=91: + + - =E5=BE=90=E9=91=AB xu xin + - =E4=BD=95=E9=85=8D=E6=9E=97 He Peilin + +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D +MSG_ZEROCOPY +=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D + +=E7=AE=80=E4=BB=8B +=3D=3D=3D=3D + +MSG_ZEROCOPY =E6=A0=87=E5=BF=97=E7=94=A8=E4=BA=8E=E5=90=AF=E7=94=A8=E5=A5= =97=E6=8E=A5=E5=AD=97=E5=8F=91=E9=80=81=E8=B0=83=E7=94=A8=E7=9A=84=E5=85=8D= =E6=8B=B7=E8=B4=9D=E5=8A=9F=E8=83=BD=E3=80=82=E8=AF=A5=E5=8A=9F=E8=83=BD=E7= =9B=AE=E5=89=8D=E9=80=82=E7=94=A8=E4=BA=8E TCP=E3=80=81UDP =E5=92=8C VSOCK +=EF=BC=88=E4=BD=BF=E7=94=A8 virtio =E4=BC=A0=E8=BE=93=EF=BC=89=E5=A5=97=E6= =8E=A5=E5=AD=97=E3=80=82 + +=E6=9C=BA=E9=81=87=E4=B8=8E=E6=B3=A8=E6=84=8F=E4=BA=8B=E9=A1=B9 +-------------- + +=E5=9C=A8=E7=94=A8=E6=88=B7=E8=BF=9B=E7=A8=8B=E4=B8=8E=E5=86=85=E6=A0=B8= =E4=B9=8B=E9=97=B4=E6=8B=B7=E8=B4=9D=E5=A4=A7=E5=9E=8B=E7=BC=93=E5=86=B2=E5= =8C=BA=E5=8F=AF=E8=83=BD=E4=BC=9A=E6=B6=88=E8=80=97=E5=A4=A7=E9=87=8F=E8=B5= =84=E6=BA=90=E3=80=82Linux =E6=94=AF=E6=8C=81=E5=A4=9A=E7=A7=8D=E5=85=8D=E6= =8B=B7=E8=B4=9D=E7=9A=84=E6=8E=A5=E5=8F=A3=EF=BC=8C=E5=A6=82sendfile +=E5=92=8C splice=E3=80=82MSG_ZEROCOPY =E6=A0=87=E5=BF=97=E5=B0=86=E5=BA=95= =E5=B1=82=E7=9A=84=E6=8B=B7=E8=B4=9D=E9=81=BF=E5=85=8D=E6=9C=BA=E5=88=B6=E6= =89=A9=E5=B1=95=E5=88=B0=E4=BA=86=E5=B8=B8=E8=A7=81=E7=9A=84=E5=A5=97=E6=8E= =A5=E5=AD=97=E5=8F=91=E9=80=81=E8=B0=83=E7=94=A8=E4=B8=AD=E3=80=82 + +=E5=85=8D=E6=8B=B7=E8=B4=9D=E5=B9=B6=E9=9D=9E=E6=AF=AB=E6=97=A0=E4=BB=A3= =E4=BB=B7=E3=80=82=E5=9C=A8=E5=AE=9E=E7=8E=B0=E4=B8=8A=EF=BC=8C=E5=AE=83=E9= =80=9A=E8=BF=87=E9=A1=B5=E9=9D=A2=E5=9B=BA=E5=AE=9A=EF=BC=88page pinning=EF= =BC=89=E5=B0=86=E6=8C=89=E5=AD=97=E8=8A=82=E6=8B=B7=E8=B4=9D=E7=9A=84=E6=88= =90=E6=9C=AC=E6=9B=BF=E6=8D=A2=E4=B8=BA=E9=A1=B5=E9=9D=A2=E7=BB=9F=E8=AE=A1 +=EF=BC=88page accounting=EF=BC=89=E5=92=8C=E5=AE=8C=E6=88=90=E9=80=9A=E7= =9F=A5=E7=9A=84=E5=BC=80=E9=94=80=E3=80=82=E5=9B=A0=E6=AD=A4=EF=BC=8CMSG_ZE= ROCOPY =E9=80=9A=E5=B8=B8=E4=BB=85=E5=9C=A8=E5=86=99=E5=85=A5=E9=87=8F=E8= =B6=85=E8=BF=87=E5=A4=A7=E7=BA=A6 10 KB =E6=97=B6 +=E6=89=8D=E6=9C=89=E6=95=88=E3=80=82 + +=E9=A1=B5=E9=9D=A2=E5=9B=BA=E5=AE=9A=E8=BF=98=E4=BC=9A=E6=94=B9=E5=8F=98= =E7=B3=BB=E7=BB=9F=E8=B0=83=E7=94=A8=E7=9A=84=E8=AF=AD=E4=B9=89=E3=80=82=E5= =AE=83=E4=BC=9A=E6=9A=82=E6=97=B6=E5=9C=A8=E8=BF=9B=E7=A8=8B=E5=92=8C=E7=BD= =91=E7=BB=9C=E5=A0=86=E6=A0=88=E4=B9=8B=E9=97=B4=E5=85=B1=E4=BA=AB=E7=BC=93= =E5=86=B2=E5=8C=BA=E3=80=82=E4=B8=8E=E6=8B=B7=E8=B4=9D=E4=B8=8D=E5=90=8C=EF= =BC=8C=E8=BF=9B=E7=A8=8B=E5=9C=A8=E7=B3=BB=E7=BB=9F +=E8=B0=83=E7=94=A8=E8=BF=94=E5=9B=9E=E5=90=8E=E4=B8=8D=E8=83=BD=E7=AB=8B= =E5=8D=B3=E8=A6=86=E7=9B=96=E7=BC=93=E5=86=B2=E5=8C=BA=EF=BC=8C=E5=90=A6=E5= =88=99=E5=8F=AF=E8=83=BD=E4=BC=9A=E4=BF=AE=E6=94=B9=E6=AD=A3=E5=9C=A8=E4=BC= =A0=E8=BE=93=E4=B8=AD=E7=9A=84=E6=95=B0=E6=8D=AE=E3=80=82=E5=86=85=E6=A0=B8= =E7=9A=84=E5=AE=8C=E6=95=B4=E6=80=A7=E4=B8=8D=E4=BC=9A=E5=8F=97=E5=88=B0=E5= =BD=B1=E5=93=8D=EF=BC=8C=E4=BD=86=E6=9C=89=E7=BC=BA +=E9=99=B7=E7=9A=84=E7=A8=8B=E5=BA=8F=E5=8F=AF=E8=83=BD=E4=BC=9A=E7=A0=B4= =E5=9D=8F=E8=87=AA=E5=B7=B1=E7=9A=84=E6=95=B0=E6=8D=AE=E6=B5=81=E3=80=82 + +=E5=BD=93=E5=86=85=E6=A0=B8=E8=BF=94=E5=9B=9E=E6=95=B0=E6=8D=AE=E5=8F=AF= =E4=BB=A5=E5=AE=89=E5=85=A8=E4=BF=AE=E6=94=B9=E7=9A=84=E9=80=9A=E7=9F=A5=E6= =97=B6=EF=BC=8C=E8=BF=9B=E7=A8=8B=E6=89=8D=E5=8F=AF=E4=BB=A5=E4=BF=AE=E6=94= =B9=E6=95=B0=E6=8D=AE=E3=80=82=E5=9B=A0=E6=AD=A4=EF=BC=8C=E5=B0=86=E7=8E=B0= =E6=9C=89=E5=BA=94=E7=94=A8=E7=A8=8B=E5=BA=8F=E8=BD=AC=E6=8D=A2=E4=B8=BA=E4= =BD=BF=E7=94=A8 +MSG_ZEROCOPY =E5=B9=B6=E9=9D=9E=E6=80=BB=E6=98=AF=E5=83=8F=E7=AE=80=E5=8D= =95=E5=9C=B0=E4=BC=A0=E9=80=92=E8=AF=A5=E6=A0=87=E5=BF=97=E9=82=A3=E6=A0=B7= =E5=AE=B9=E6=98=93=E3=80=82 + +=E6=9B=B4=E5=A4=9A=E4=BF=A1=E6=81=AF +-------- + +=E6=9C=AC=E6=96=87=E6=A1=A3=E7=9A=84=E5=A4=A7=E9=83=A8=E5=88=86=E5=86=85= =E5=AE=B9=E6=98=AF=E6=9D=A5=E8=87=AA=E4=BA=8E netdev 2.1 =E4=B8=8A=E5=8F=91= =E8=A1=A8=E7=9A=84=E4=B8=80=E7=AF=87=E9=95=BF=E7=AF=87=E8=AE=BA=E6=96=87=E3= =80=82=E5=A6=82=E9=9C=80=E6=9B=B4=E6=B7=B1=E5=85=A5=E7=9A=84=E4=BF=A1=E6=81= =AF=EF=BC=8C=E8=AF=B7=E5=8F=82=E9=98=85=E8=AF=A5=E8=AE=BA=E6=96=87=E5=92=8C +=E6=BC=94=E8=AE=B2=EF=BC=8C=E6=88=96=E8=80=85=E6=B5=8F=E8=A7=88 LWN.net = =E4=B8=8A=E7=9A=84=E7=B2=BE=E5=BD=A9=E6=8A=A5=E9=81=93=EF=BC=8C=E4=B9=9F=E5= =8F=AF=E4=BB=A5=E7=9B=B4=E6=8E=A5=E9=98=85=E8=AF=BB=E6=BA=90=E7=A0=81=E3=80= =82 + + =E8=AE=BA=E6=96=87=E3=80=81=E5=B9=BB=E7=81=AF=E7=89=87=E3=80=81=E8=A7=86= =E9=A2=91=EF=BC=9A + https://netdevconf.org/2.1/session.html?debruijn + + LWN =E6=96=87=E7=AB=A0=EF=BC=9A + https://lwn.net/Articles/726917/ + + =E8=A1=A5=E4=B8=81=E9=9B=86=EF=BC=9A + [PATCH net-next v4 0/9] socket sendmsg MSG_ZEROCOPY + https://lore.kernel.org/netdev/20170803202945.70750-1-willemdebruijn.k= ernel@gmail.com + +=E6=8E=A5=E5=8F=A3 +=3D=3D=3D=3D + +=E4=BC=A0=E9=80=92 MSG_ZEROCOPY =E6=A0=87=E5=BF=97=E6=98=AF=E5=90=AF=E7=94= =A8=E5=85=8D=E6=8B=B7=E8=B4=9D=E5=8A=9F=E8=83=BD=E7=9A=84=E6=9C=80=E6=98=8E= =E6=98=BE=E6=AD=A5=E9=AA=A4=EF=BC=8C=E4=BD=86=E5=B9=B6=E9=9D=9E=E5=94=AF=E4= =B8=80=E7=9A=84=E6=AD=A5=E9=AA=A4=E3=80=82 + +=E5=A5=97=E6=8E=A5=E5=AD=97=E8=AE=BE=E7=BD=AE +---------- + +=E5=BD=93=E5=BA=94=E7=94=A8=E7=A8=8B=E5=BA=8F=E5=90=91 send =E7=B3=BB=E7= =BB=9F=E8=B0=83=E7=94=A8=E4=BC=A0=E9=80=92=E6=9C=AA=E5=AE=9A=E4=B9=89=E7=9A= =84=E6=A0=87=E5=BF=97=E6=97=B6=EF=BC=8C=E5=86=85=E6=A0=B8=E9=80=9A=E5=B8=B8= =E4=BC=9A=E5=AE=BD=E5=AE=B9=E5=AF=B9=E5=BE=85=E3=80=82=E9=BB=98=E8=AE=A4=E6= =83=85=E5=86=B5=E4=B8=8B=EF=BC=8C=E5=AE=83=E4=BC=9A=E7=AE=80=E5=8D=95=E5=9C= =B0=E5=BF=BD=E7=95=A5 +=E8=BF=99=E4=BA=9B=E6=A0=87=E5=BF=97=E3=80=82=E4=B8=BA=E4=BA=86=E9=81=BF= =E5=85=8D=E4=B8=BA=E9=82=A3=E4=BA=9B=E5=81=B6=E7=84=B6=E4=BC=A0=E9=80=92=E6= =AD=A4=E6=A0=87=E5=BF=97=E7=9A=84=E9=81=97=E7=95=99=E8=BF=9B=E7=A8=8B=E5=90= =AF=E7=94=A8=E5=85=8D=E6=8B=B7=E8=B4=9D=E6=A8=A1=E5=BC=8F=EF=BC=8C=E8=BF=9B= =E7=A8=8B=E5=BF=85=E9=A1=BB=E9=A6=96=E5=85=88=E9=80=9A=E8=BF=87=E8=AE=BE=E7= =BD=AE=E5=A5=97=E6=8E=A5=E5=AD=97=E9=80=89=E9=A1=B9 +=E6=9D=A5=E8=A1=A8=E6=98=8E=E6=84=8F=E5=9B=BE=EF=BC=9A + +:: + + if (setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY, &one, sizeof(one))) + error(1, errno, "setsockopt zerocopy"); + +=E4=BC=A0=E8=BE=93 +---- + +=E5=AF=B9 send=EF=BC=88=E6=88=96 sendto=E3=80=81sendmsg=E3=80=81sendmmsg= =EF=BC=89=E6=9C=AC=E8=BA=AB=E7=9A=84=E6=94=B9=E5=8A=A8=E9=9D=9E=E5=B8=B8=E7= =AE=80=E5=8D=95=E3=80=82=E5=8F=AA=E9=9C=80=E4=BC=A0=E9=80=92=E6=96=B0=E7=9A= =84=E6=A0=87=E5=BF=97=E5=8D=B3=E5=8F=AF=E3=80=82 + +:: + + ret =3D send(fd, buf, sizeof(buf), MSG_ZEROCOPY); + +=E5=A6=82=E6=9E=9C=E9=9B=B6=E6=8B=B7=E8=B4=9D=E6=93=8D=E4=BD=9C=E5=A4=B1= =E8=B4=A5=EF=BC=8C=E5=B0=86=E8=BF=94=E5=9B=9E -1=EF=BC=8C=E5=B9=B6=E8=AE=BE= =E7=BD=AE errno =E4=B8=BA ENOBUFS=E3=80=82=E8=BF=99=E7=A7=8D=E6=83=85=E5=86= =B5=E5=8F=AF=E8=83=BD=E5=8F=91=E7=94=9F=E5=9C=A8=E5=A5=97=E6=8E=A5=E5=AD=97= =E8=B6=85=E5=87=BA=E5=85=B6 +optmem =E9=99=90=E5=88=B6=EF=BC=8C=E6=88=96=E8=80=85=E7=94=A8=E6=88=B7=E8= =B6=85=E5=87=BA=E5=85=B6=E9=94=81=E5=AE=9A=E9=A1=B5=E9=9D=A2=E7=9A=84 ulimi= t =E6=97=B6=E3=80=82 + +=E6=B7=B7=E5=90=88=E4=BD=BF=E7=94=A8=E5=85=8D=E6=8B=B7=E8=B4=9D=E5=92=8C= =E6=8B=B7=E8=B4=9D +~~~~~~~~~~~~~~~~~~~~ + +=E8=AE=B8=E5=A4=9A=E5=B7=A5=E4=BD=9C=E8=B4=9F=E8=BD=BD=E5=90=8C=E6=97=B6= =E5=8C=85=E5=90=AB=E5=A4=A7=E5=9E=8B=E5=92=8C=E5=B0=8F=E5=9E=8B=E7=BC=93=E5= =86=B2=E5=8C=BA=E3=80=82=E7=94=B1=E4=BA=8E=E5=AF=B9=E4=BA=8E=E5=B0=8F=E6=95= =B0=E6=8D=AE=E5=8C=85=E6=9D=A5=E8=AF=B4=EF=BC=8C=E5=85=8D=E6=8B=B7=E8=B4=9D= =E7=9A=84=E6=88=90=E6=9C=AC=E9=AB=98=E4=BA=8E=E6=8B=B7=E8=B4=9D=EF=BC=8C=E5= =9B=A0=E6=AD=A4=E8=AF=A5 +=E5=8A=9F=E8=83=BD=E6=98=AF=E9=80=9A=E8=BF=87=E6=A0=87=E5=BF=97=E5=AE=9E= =E7=8E=B0=E7=9A=84=E3=80=82=E5=B8=A6=E6=9C=89=E6=A0=87=E5=BF=97=E7=9A=84=E8= =B0=83=E7=94=A8=E5=92=8C=E6=B2=A1=E6=9C=89=E6=A0=87=E5=BF=97=E7=9A=84=E8=B0= =83=E7=94=A8=E5=8F=AF=E4=BB=A5=E5=AE=89=E5=85=A8=E5=9C=B0=E6=B7=B7=E5=90=88= =E4=BD=BF=E7=94=A8=E3=80=82 + +=E9=80=9A=E7=9F=A5 +---- + +=E5=BD=93=E5=86=85=E6=A0=B8=E8=AE=A4=E4=B8=BA=E5=8F=AF=E4=BB=A5=E5=AE=89= =E5=85=A8=E5=9C=B0=E9=87=8D=E7=94=A8=E4=B9=8B=E5=89=8D=E4=BC=A0=E9=80=92=E7= =9A=84=E7=BC=93=E5=86=B2=E5=8C=BA=E6=97=B6=EF=BC=8C=E5=AE=83=E5=BF=85=E9=A1= =BB=E9=80=9A=E7=9F=A5=E8=BF=9B=E7=A8=8B=E3=80=82=E5=AE=8C=E6=88=90=E9=80=9A= =E7=9F=A5=E5=9C=A8=E5=A5=97=E6=8E=A5=E5=AD=97=E7=9A=84=E9=94=99=E8=AF=AF=E9= =98=9F=E5=88=97=E4=B8=8A +=E6=8E=92=E9=98=9F=EF=BC=8C=E7=B1=BB=E4=BC=BC=E4=BA=8E=E4=BC=A0=E8=BE=93= =E6=97=B6=E9=97=B4=E6=88=B3=E6=8E=A5=E5=8F=A3=E3=80=82 + +=E9=80=9A=E7=9F=A5=E6=9C=AC=E8=BA=AB=E6=98=AF=E4=B8=80=E4=B8=AA=E7=AE=80= =E5=8D=95=E7=9A=84=E6=A0=87=E9=87=8F=E5=80=BC=E3=80=82=E6=AF=8F=E4=B8=AA=E5= =A5=97=E6=8E=A5=E5=AD=97=E9=83=BD=E7=BB=B4=E6=8A=A4=E4=B8=80=E4=B8=AA=E5=86= =85=E9=83=A8=E7=9A=84=E6=97=A0=E7=AC=A6=E5=8F=B7 32 =E4=BD=8D=E8=AE=A1=E6= =95=B0=E5=99=A8=E3=80=82=E6=AF=8F=E6=AC=A1=E5=B8=A6=E6=9C=89 +MSG_ZEROCOPY =E6=A0=87=E5=BF=97=E7=9A=84 send =E8=B0=83=E7=94=A8=E6=88=90= =E5=8A=9F=E5=8F=91=E9=80=81=E6=95=B0=E6=8D=AE=E6=97=B6=EF=BC=8C=E8=AE=A1=E6= =95=B0=E5=99=A8=E9=83=BD=E4=BC=9A=E5=A2=9E=E5=8A=A0=E3=80=82=E5=A6=82=E6=9E= =9C=E8=B0=83=E7=94=A8=E5=A4=B1=E8=B4=A5=E6=88=96=E9=95=BF=E5=BA=A6=E4=B8=BA= =E9=9B=B6=EF=BC=8C +=E5=88=99=E8=AE=A1=E6=95=B0=E5=99=A8=E4=B8=8D=E4=BC=9A=E5=A2=9E=E5=8A=A0= =E3=80=82=E8=AF=A5=E8=AE=A1=E6=95=B0=E5=99=A8=E7=BB=9F=E8=AE=A1=E7=B3=BB=E7= =BB=9F=E8=B0=83=E7=94=A8=E7=9A=84=E8=B0=83=E7=94=A8=E6=AC=A1=E6=95=B0=EF=BC= =8C=E8=80=8C=E4=B8=8D=E6=98=AF=E5=AD=97=E8=8A=82=E6=95=B0=E3=80=82=E5=9C=A8= UINT_MAX =E6=AC=A1=E8=B0=83=E7=94=A8=E5=90=8E=EF=BC=8C +=E8=AE=A1=E6=95=B0=E5=99=A8=E4=BC=9A=E5=BE=AA=E7=8E=AF=E3=80=82 + +=E9=80=9A=E7=9F=A5=E6=8E=A5=E6=94=B6 +~~~~~~~~ + +=E4=B8=8B=E9=9D=A2=E7=9A=84=E4=BB=A3=E7=A0=81=E7=89=87=E6=AE=B5=E5=B1=95= =E7=A4=BA=E4=BA=86 API =E7=9A=84=E4=BD=BF=E7=94=A8=E3=80=82=E5=9C=A8=E6=9C= =80=E7=AE=80=E5=8D=95=E7=9A=84=E6=83=85=E5=86=B5=E4=B8=8B=EF=BC=8C=E6=AF=8F= =E6=AC=A1 send =E7=B3=BB=E7=BB=9F=E8=B0=83=E7=94=A8=E5=90=8E=EF=BC=8C=E9=83= =BD=E4=BC=9A=E5=AF=B9=E9=94=99=E8=AF=AF=E9=98=9F=E5=88=97 +=E8=BF=9B=E8=A1=8C=E8=BD=AE=E8=AF=A2=E5=92=8C recvmsg =E8=B0=83=E7=94=A8= =E3=80=82 + +=E4=BB=8E=E9=94=99=E8=AF=AF=E9=98=9F=E5=88=97=E8=AF=BB=E5=8F=96=E5=A7=8B= =E7=BB=88=E6=98=AF=E4=B8=80=E4=B8=AA=E9=9D=9E=E9=98=BB=E5=A1=9E=E6=93=8D=E4= =BD=9C=E3=80=82poll =E8=B0=83=E7=94=A8=E7=94=A8=E4=BA=8E=E9=98=BB=E5=A1=9E= =EF=BC=8C=E7=9B=B4=E5=88=B0=E5=87=BA=E7=8E=B0=E9=94=99=E8=AF=AF=E3=80=82=E5= =AE=83=E4=BC=9A=E5=9C=A8=E5=85=B6=E8=BE=93=E5=87=BA=E6=A0=87=E5=BF=97=E4=B8= =AD +=E8=AE=BE=E7=BD=AE POLLERR=E3=80=82=E8=AF=A5=E6=A0=87=E5=BF=97=E4=B8=8D=E9= =9C=80=E8=A6=81=E5=9C=A8 events =E5=AD=97=E6=AE=B5=E4=B8=AD=E8=AE=BE=E7=BD= =AE=E3=80=82=E9=94=99=E8=AF=AF=E4=BC=9A=E6=97=A0=E6=9D=A1=E4=BB=B6=E5=9C=B0= =E5=8F=91=E5=87=BA=E4=BF=A1=E5=8F=B7=E3=80=82 + +:: + + pfd.fd =3D fd; + pfd.events =3D 0; + if (poll(&pfd, 1, -1) !=3D 1 || pfd.revents & POLLERR =3D=3D 0) + error(1, errno, "poll"); + + ret =3D recvmsg(fd, &msg, MSG_ERRQUEUE); + if (ret =3D=3D -1) + error(1, errno, "recvmsg"); + + read_notification(msg); + + +=E8=BF=99=E4=B8=AA=E7=A4=BA=E4=BE=8B=E4=BB=85=E7=94=A8=E4=BA=8E=E6=BC=94= =E7=A4=BA=E7=9B=AE=E7=9A=84=E3=80=82=E5=9C=A8=E5=AE=9E=E9=99=85=E5=BA=94=E7= =94=A8=E4=B8=AD=EF=BC=8C=E4=B8=8D=E7=AD=89=E5=BE=85=E9=80=9A=E7=9F=A5=EF=BC= =8C=E8=80=8C=E6=98=AF=E6=AF=8F=E9=9A=94=E5=87=A0=E6=AC=A1 send =E8=B0=83=E7= =94=A8=E5=B0=B1=E8=BF=9B=E8=A1=8C=E4=B8=80=E6=AC=A1=E9=9D=9E=E9=98=BB=E5=A1= =9E +=E8=AF=BB=E5=8F=96=E4=BC=9A=E6=9B=B4=E9=AB=98=E6=95=88=E3=80=82 + +=E9=9B=B6=E6=8B=B7=E8=B4=9D=E9=80=9A=E7=9F=A5=E5=8F=AF=E4=BB=A5=E4=B8=8E= =E5=85=B6=E4=BB=96=E5=A5=97=E6=8E=A5=E5=AD=97=E6=93=8D=E4=BD=9C=E4=B9=B1=E5= =BA=8F=E5=A4=84=E7=90=86=E3=80=82=E9=80=9A=E5=B8=B8=EF=BC=8C=E6=8B=A5=E6=9C= =89=E9=94=99=E8=AF=AF=E9=98=9F=E5=88=97=E5=A5=97=E6=8E=A5=E5=AD=97=E4=BC=9A= =E9=98=BB=E5=A1=9E=E5=85=B6=E4=BB=96=E6=93=8D=E4=BD=9C=EF=BC=8C=E7=9B=B4=E5= =88=B0=E9=94=99=E8=AF=AF +=E8=A2=AB=E8=AF=BB=E5=8F=96=E3=80=82=E7=84=B6=E8=80=8C=EF=BC=8C=E9=9B=B6= =E6=8B=B7=E8=B4=9D=E9=80=9A=E7=9F=A5=E5=85=B7=E6=9C=89=E9=9B=B6=E9=94=99=E8= =AF=AF=E4=BB=A3=E7=A0=81=EF=BC=8C=E5=9B=A0=E6=AD=A4=E4=B8=8D=E4=BC=9A=E9=98= =BB=E5=A1=9E send =E5=92=8C recv =E8=B0=83=E7=94=A8=E3=80=82 + +=E9=80=9A=E7=9F=A5=E6=89=B9=E5=A4=84=E7=90=86 +~~~~~~~~~~~~ + +=E5=8F=AF=E4=BB=A5=E4=BD=BF=E7=94=A8 recvmmsg =E8=B0=83=E7=94=A8=E6=9D=A5= =E4=B8=80=E6=AC=A1=E6=80=A7=E8=AF=BB=E5=8F=96=E5=A4=9A=E4=B8=AA=E6=9C=AA=E5= =86=B3=E7=9A=84=E6=95=B0=E6=8D=AE=E5=8C=85=E3=80=82=E8=BF=99=E9=80=9A=E5=B8= =B8=E4=B8=8D=E6=98=AF=E5=BF=85=E9=9C=80=E7=9A=84=E3=80=82=E5=9C=A8=E6=AF=8F= =E6=9D=A1=E6=B6=88=E6=81=AF=E4=B8=AD=EF=BC=8C=E5=86=85=E6=A0=B8 +=E8=BF=94=E5=9B=9E=E7=9A=84=E4=B8=8D=E6=98=AF=E4=B8=80=E4=B8=AA=E5=8D=95= =E4=B8=80=E7=9A=84=E5=80=BC=EF=BC=8C=E8=80=8C=E6=98=AF=E4=B8=80=E4=B8=AA=E8= =8C=83=E5=9B=B4=E3=80=82=E5=BD=93=E9=94=99=E8=AF=AF=E9=98=9F=E5=88=97=E4=B8= =8A=E6=9C=89=E4=B8=80=E4=B8=AA=E9=80=9A=E7=9F=A5=E6=AD=A3=E5=9C=A8=E7=AD=89= =E5=BE=85=E6=8E=A5=E6=94=B6=E6=97=B6=EF=BC=8C=E5=AE=83=E4=BC=9A=E5=B0=86=E8= =BF=9E=E7=BB=AD=E7=9A=84=E9=80=9A +=E7=9F=A5=E5=90=88=E5=B9=B6=E8=B5=B7=E6=9D=A5=E3=80=82 + +=E5=BD=93=E4=B8=80=E4=B8=AA=E6=96=B0=E7=9A=84=E9=80=9A=E7=9F=A5=E5=8D=B3= =E5=B0=86=E8=A2=AB=E6=8E=92=E9=98=9F=E6=97=B6=EF=BC=8C=E5=AE=83=E4=BC=9A=E6= =A3=80=E6=9F=A5=E9=98=9F=E5=88=97=E5=B0=BE=E9=83=A8=E7=9A=84=E9=80=9A=E7=9F= =A5=E7=9A=84=E8=8C=83=E5=9B=B4=E6=98=AF=E5=90=A6=E5=8F=AF=E4=BB=A5=E6=89=A9= =E5=B1=95=E4=BB=A5=E5=8C=85=E5=90=AB=E6=96=B0=E7=9A=84=E5=80=BC=E3=80=82=E5= =A6=82=E6=9E=9C=E6=98=AF=E8=BF=99 +=E6=A0=B7=EF=BC=8C=E5=AE=83=E4=BC=9A=E4=B8=A2=E5=BC=83=E6=96=B0=E7=9A=84= =E9=80=9A=E7=9F=A5=E6=95=B0=E6=8D=AE=E5=8C=85=EF=BC=8C=E5=B9=B6=E5=A2=9E=E5= =A4=A7=E6=9C=AA=E5=A4=84=E7=90=86=E9=80=9A=E7=9F=A5=E7=9A=84=E8=8C=83=E5=9B= =B4=E4=B8=8A=E9=99=90=E5=80=BC=E3=80=82 + +=E5=AF=B9=E4=BA=8E=E6=8C=89=E9=A1=BA=E5=BA=8F=E7=A1=AE=E8=AE=A4=E6=95=B0= =E6=8D=AE=E7=9A=84=E5=8D=8F=E8=AE=AE=EF=BC=88=E5=A6=82 TCP=EF=BC=89=EF=BC= =8C=E6=AF=8F=E4=B8=AA=E9=80=9A=E7=9F=A5=E9=83=BD=E5=8F=AF=E4=BB=A5=E5=90=88= =E5=B9=B6=E5=88=B0=E5=89=8D=E4=B8=80=E4=B8=AA=E9=80=9A=E7=9F=A5=E4=B8=AD=EF= =BC=8C=E5=9B=A0=E6=AD=A4=E5=9C=A8=E4=BB=BB=E4=BD=95=E6=97=B6=E5=80=99=E5=9C= =A8=E7=AD=89=E5=BE=85 +=E7=9A=84=E9=80=9A=E7=9F=A5=E9=83=BD=E4=B8=8D=E4=BC=9A=E8=B6=85=E8=BF=87= =E4=B8=80=E4=B8=AA=E3=80=82 + +=E6=9C=89=E5=BA=8F=E4=BA=A4=E4=BB=98=E6=98=AF=E5=B8=B8=E8=A7=81=E7=9A=84= =E6=83=85=E5=86=B5=EF=BC=8C=E4=BD=86=E4=B8=8D=E8=83=BD=E4=BF=9D=E8=AF=81=E3= =80=82=E5=9C=A8=E9=87=8D=E4=BC=A0=E5=92=8C=E5=A5=97=E6=8E=A5=E5=AD=97=E6=8B= =86=E9=99=A4=E6=97=B6=EF=BC=8C=E9=80=9A=E7=9F=A5=E5=8F=AF=E8=83=BD=E4=BC=9A= =E4=B9=B1=E5=BA=8F=E5=88=B0=E8=BE=BE=E3=80=82 + +=E9=80=9A=E7=9F=A5=E8=A7=A3=E6=9E=90 +~~~~~~~~ + +=E4=B8=8B=E9=9D=A2=E7=9A=84=E4=BB=A3=E7=A0=81=E7=89=87=E6=AE=B5=E6=BC=94= =E7=A4=BA=E4=BA=86=E5=A6=82=E4=BD=95=E8=A7=A3=E6=9E=90=E6=8E=A7=E5=88=B6=E6= =B6=88=E6=81=AF=EF=BC=9A=E5=89=8D=E9=9D=A2=E4=BB=A3=E7=A0=81=E7=89=87=E6=AE= =B5=E4=B8=AD=E7=9A=84 read_notification() =E8=B0=83=E7=94=A8=E3=80=82=E9=80= =9A=E7=9F=A5 +=E4=BB=A5=E6=A0=87=E5=87=86=E9=94=99=E8=AF=AF=E6=A0=BC=E5=BC=8F sock_exten= ded_err =E7=BC=96=E7=A0=81=E3=80=82 + +=E6=8E=A7=E5=88=B6=E6=95=B0=E6=8D=AE=E4=B8=AD=E7=9A=84=E7=BA=A7=E5=88=AB= =E5=92=8C=E7=B1=BB=E5=9E=8B=E5=AD=97=E6=AE=B5=E6=98=AF=E5=8D=8F=E8=AE=AE=E6= =97=8F=E7=89=B9=E5=AE=9A=E7=9A=84=EF=BC=8C=E5=AF=B9=E4=BA=8E TCP =E6=88=96 = UDP =E5=A5=97=E6=8E=A5=E5=AD=97=EF=BC=8C=E5=88=86=E5=88=AB=E4=B8=BA IP_RECV= ERR =E6=88=96 +IPV6_RECVERR=E3=80=82=E5=AF=B9=E4=BA=8E VSOCK =E5=A5=97=E6=8E=A5=E5=AD=97= =EF=BC=8Ccmsg_level =E4=B8=BA SOL_VSOCK=EF=BC=8Ccmsg_type =E4=B8=BA VSOCK_R= ECVERR=E3=80=82 + +=E9=94=99=E8=AF=AF=E6=9D=A5=E6=BA=90=E6=98=AF=E6=96=B0=E7=9A=84=E7=B1=BB= =E5=9E=8B SO_EE_ORIGIN_ZEROCOPY=E3=80=82=E5=A6=82=E5=89=8D=E6=89=80=E8=BF= =B0=EF=BC=8Cee_errno =E4=B8=BA=E9=9B=B6=EF=BC=8C=E4=BB=A5=E9=81=BF=E5=85=8D= =E5=9C=A8=E5=A5=97=E6=8E=A5=E5=AD=97=E4=B8=8A +=E9=98=BB=E5=A1=9E=E5=9C=B0=E8=AF=BB=E5=8F=96=E5=92=8C=E5=86=99=E5=85=A5= =E7=B3=BB=E7=BB=9F=E8=B0=83=E7=94=A8=E3=80=82 + +32 =E4=BD=8D=E9=80=9A=E7=9F=A5=E8=8C=83=E5=9B=B4=E7=BC=96=E7=A0=81=E4=B8= =BA [ee_info, ee_data]=E3=80=82=E8=BF=99=E4=B8=AA=E8=8C=83=E5=9B=B4=E6=98= =AF=E5=8C=85=E5=90=AB=E8=BE=B9=E7=95=8C=E5=80=BC=E7=9A=84=E3=80=82=E9=99=A4= =E4=BA=86=E4=B8=8B=E9=9D=A2=E8=AE=A8=E8=AE=BA=E7=9A=84 ee_code +=E5=AD=97=E6=AE=B5=E5=A4=96=EF=BC=8C=E7=BB=93=E6=9E=84=E4=B8=AD=E7=9A=84= =E5=85=B6=E4=BB=96=E5=AD=97=E6=AE=B5=E5=BA=94=E8=A2=AB=E8=A7=86=E4=B8=BA=E6= =9C=AA=E5=AE=9A=E4=B9=89=E7=9A=84=E3=80=82 + +:: + + struct sock_extended_err *serr; + struct cmsghdr *cm; + + cm =3D CMSG_FIRSTHDR(msg); + if (cm->cmsg_level !=3D SOL_IP && + cm->cmsg_type !=3D IP_RECVERR) + error(1, 0, "cmsg"); + + serr =3D (void *) CMSG_DATA(cm); + if (serr->ee_errno !=3D 0 || + serr->ee_origin !=3D SO_EE_ORIGIN_ZEROCOPY) + error(1, 0, "serr"); + + printf("completed: %u..%u\n", serr->ee_info, serr->ee_data); + + +=E5=BB=B6=E8=BF=9F=E6=8B=B7=E8=B4=9D +~~~~~~~~ + +=E4=BC=A0=E9=80=92=E6=A0=87=E5=BF=97 MSG_ZEROCOPY =E6=98=AF=E5=90=91=E5=86= =85=E6=A0=B8=E5=8F=91=E5=87=BA=E7=9A=84=E4=B8=80=E4=B8=AA=E6=8F=90=E7=A4=BA= =EF=BC=8C=E8=AE=A9=E5=86=85=E6=A0=B8=E9=87=87=E7=94=A8=E5=85=8D=E6=8B=B7=E8= =B4=9D=E7=9A=84=E7=AD=96=E7=95=A5=EF=BC=8C=E5=90=8C=E6=97=B6=E4=B9=9F=E6=98= =AF=E4=B8=80=E7=A7=8D=E7=BA=A6 +=E5=AE=9A=EF=BC=8C=E5=8D=B3=E5=86=85=E6=A0=B8=E4=BC=9A=E5=AF=B9=E5=AE=8C= =E6=88=90=E9=80=9A=E7=9F=A5=E8=BF=9B=E8=A1=8C=E6=8E=92=E9=98=9F=E5=A4=84=E7= =90=86=E3=80=82=E4=BD=86=E8=BF=99=E5=B9=B6=E4=B8=8D=E4=BF=9D=E8=AF=81=E6=8B= =B7=E8=B4=9D=E6=93=8D=E4=BD=9C=E4=B8=80=E5=AE=9A=E4=BC=9A=E8=A2=AB=E7=9C=81= =E7=95=A5=E3=80=82 + +=E6=8B=B7=E8=B4=9D=E9=81=BF=E5=85=8D=E4=B8=8D=E6=80=BB=E6=98=AF=E9=80=82= =E7=94=A8=E7=9A=84=E3=80=82=E4=B8=8D=E6=94=AF=E6=8C=81=E5=88=86=E6=95=A3/= =E8=81=9A=E9=9B=86 I/O =E7=9A=84=E8=AE=BE=E5=A4=87=E6=97=A0=E6=B3=95=E5=8F= =91=E9=80=81=E7=94=B1=E5=86=85=E6=A0=B8=E7=94=9F=E6=88=90=E7=9A=84=E5=8D=8F= =E8=AE=AE=E5=A4=B4=E5=8A=A0=E4=B8=8A=E9=9B=B6=E6=8B=B7=E8=B4=9D=E7=94=A8=E6= =88=B7 +=E6=95=B0=E6=8D=AE=E7=BB=84=E6=88=90=E7=9A=84=E6=95=B0=E6=8D=AE=E5=8C=85= =E3=80=82=E6=95=B0=E6=8D=AE=E5=8C=85=E5=8F=AF=E8=83=BD=E9=9C=80=E8=A6=81=E5= =9C=A8=E5=8D=8F=E8=AE=AE=E6=A0=88=E5=BA=95=E5=B1=82=E8=BD=AC=E6=8D=A2=E4=B8= =BA=E4=B8=80=E4=BB=BD=E7=A7=81=E6=9C=89=E6=95=B0=E6=8D=AE=E5=89=AF=E6=9C=AC= =EF=BC=8C=E4=BE=8B=E5=A6=82=E7=94=A8=E4=BA=8E=E8=AE=A1=E7=AE=97=E6=A0=A1=E9= =AA=8C=E5=92=8C=E3=80=82 + +=E5=9C=A8=E6=89=80=E6=9C=89=E8=BF=99=E4=BA=9B=E6=83=85=E5=86=B5=E4=B8=8B= =EF=BC=8C=E5=BD=93=E5=86=85=E6=A0=B8=E9=87=8A=E6=94=BE=E5=AF=B9=E5=85=B1=E4= =BA=AB=E9=A1=B5=E9=9D=A2=E7=9A=84=E6=8C=81=E6=9C=89=E6=9D=83=E6=97=B6=EF=BC= =8C=E5=AE=83=E4=BC=9A=E8=BF=94=E5=9B=9E=E4=B8=80=E4=B8=AA=E5=AE=8C=E6=88=90= =E9=80=9A=E7=9F=A5=E3=80=82=E8=AF=A5=E9=80=9A=E7=9F=A5=E5=8F=AF=E8=83=BD=E5= =9C=A8=EF=BC=88=E5=B7=B2 +=E6=8B=B7=E8=B4=9D=EF=BC=89=E6=95=B0=E6=8D=AE=E5=AE=8C=E5=85=A8=E4=BC=A0= =E8=BE=93=E4=B9=8B=E5=89=8D=E5=88=B0=E8=BE=BE=E3=80=82=E5=9B=A0=E6=AD=A4=E3= =80=82=E9=9B=B6=E6=8B=B7=E8=B4=9D=E5=AE=8C=E6=88=90=E9=80=9A=E7=9F=A5=E5=B9= =B6=E4=B8=8D=E6=98=AF=E4=BC=A0=E8=BE=93=E5=AE=8C=E6=88=90=E9=80=9A=E7=9F=A5= =E3=80=82 + +=E5=A6=82=E6=9E=9C=E6=95=B0=E6=8D=AE=E4=B8=8D=E5=9C=A8=E7=BC=93=E5=AD=98= =E4=B8=AD=EF=BC=8C=E5=BB=B6=E8=BF=9F=E6=8B=B7=E8=B4=9D=E5=8F=AF=E8=83=BD=E4= =BC=9A=E6=AF=94=E7=AB=8B=E5=8D=B3=E5=9C=A8=E7=B3=BB=E7=BB=9F=E8=B0=83=E7=94= =A8=E4=B8=AD=E6=8B=B7=E8=B4=9D=E5=BC=80=E9=94=80=E6=9B=B4=E5=A4=A7=E3=80=82= =E8=BF=9B=E7=A8=8B=E8=BF=98=E4=BC=9A=E5=9B=A0=E9=80=9A=E7=9F=A5=E5=A4=84=E7= =90=86=E8=80=8C=E4=BA=A7 +=E7=94=9F=E6=88=90=E6=9C=AC=EF=BC=8C=E4=BD=86=E5=8D=B4=E6=B2=A1=E6=9C=89= =E5=B8=A6=E6=9D=A5=E4=BB=BB=E4=BD=95=E5=A5=BD=E5=A4=84=E3=80=82=E5=9B=A0=E6= =AD=A4=EF=BC=8C=E5=86=85=E6=A0=B8=E4=BC=9A=E5=9C=A8=E8=BF=94=E5=9B=9E=E6=97= =B6=E9=80=9A=E8=BF=87=E5=9C=A8 ee_code =E5=AD=97=E6=AE=B5=E4=B8=AD=E8=AE=BE= =E7=BD=AE=E6=A0=87=E5=BF=97 +SO_EE_CODE_ZEROCOPY_COPIED =E6=9D=A5=E6=8C=87=E7=A4=BA=E6=95=B0=E6=8D=AE= =E6=98=AF=E5=90=A6=E4=BB=A5=E6=8B=B7=E8=B4=9D=E7=9A=84=E6=96=B9=E5=BC=8F=E5= =AE=8C=E6=88=90=E3=80=82=E8=BF=9B=E7=A8=8B=E5=8F=AF=E4=BB=A5=E5=88=A9=E7=94= =A8=E8=BF=99=E4=B8=AA=E4=BF=A1=E5=8F=B7=EF=BC=8C=E5=9C=A8 +=E5=90=8C=E4=B8=80=E5=A5=97=E6=8E=A5=E5=AD=97=E4=B8=8A=E5=90=8E=E7=BB=AD= =E7=9A=84=E8=AF=B7=E6=B1=82=E4=B8=AD=E5=81=9C=E6=AD=A2=E4=BC=A0=E9=80=92 MS= G_ZEROCOPY =E6=A0=87=E5=BF=97=E3=80=82 + +=E5=AE=9E=E7=8E=B0 +=3D=3D=3D=3D + +=E7=8E=AF=E5=9B=9E +---- + +=E5=AF=B9=E4=BA=8E TCP =E5=92=8C UDP=EF=BC=9A +=E5=A6=82=E6=9E=9C=E6=8E=A5=E6=94=B6=E8=BF=9B=E7=A8=8B=E4=B8=8D=E8=AF=BB= =E5=8F=96=E5=85=B6=E5=A5=97=E6=8E=A5=E5=AD=97=EF=BC=8C=E5=8F=91=E9=80=81=E5= =88=B0=E6=9C=AC=E5=9C=B0=E5=A5=97=E6=8E=A5=E5=AD=97=E7=9A=84=E6=95=B0=E6=8D= =AE=E5=8F=AF=E8=83=BD=E4=BC=9A=E6=97=A0=E9=99=90=E6=9C=9F=E6=8E=92=E9=98=9F= =E3=80=82=E6=97=A0=E9=99=90=E6=9C=9F=E7=9A=84=E9=80=9A=E7=9F=A5=E5=BB=B6=E8= =BF=9F=E6=98=AF=E4=B8=8D +=E5=8F=AF=E6=8E=A5=E5=8F=97=E7=9A=84=E3=80=82=E5=9B=A0=E6=AD=A4=EF=BC=8C= =E6=89=80=E6=9C=89=E4=BD=BF=E7=94=A8 MSG_ZEROCOPY =E7=94=9F=E6=88=90=E5=B9= =B6=E7=8E=AF=E5=9B=9E=E5=88=B0=E6=9C=AC=E5=9C=B0=E5=A5=97=E6=8E=A5=E5=AD=97= =E7=9A=84=E6=95=B0=E6=8D=AE=E5=8C=85=E9=83=BD=E5=B0=86=E4=BA=A7=E7=94=9F=E5= =BB=B6=E8=BF=9F=E6=8B=B7=E8=B4=9D=E3=80=82 +=E8=BF=99=E5=8C=85=E6=8B=AC=E7=8E=AF=E5=9B=9E=E5=88=B0=E6=95=B0=E6=8D=AE= =E5=8C=85=E5=A5=97=E6=8E=A5=E5=AD=97=EF=BC=88=E4=BE=8B=E5=A6=82=EF=BC=8Ctcp= dump=EF=BC=89=E5=92=8C tun =E8=AE=BE=E5=A4=87=E3=80=82 + +=E5=AF=B9=E4=BA=8E VSOCK=EF=BC=9A +=E5=8F=91=E9=80=81=E5=88=B0=E6=9C=AC=E5=9C=B0=E5=A5=97=E6=8E=A5=E5=AD=97= =E7=9A=84=E6=95=B0=E6=8D=AE=E8=B7=AF=E5=BE=84=E4=B8=8E=E9=9D=9E=E6=9C=AC=E5= =9C=B0=E5=A5=97=E6=8E=A5=E5=AD=97=E7=9B=B8=E5=90=8C=E3=80=82 + +=E6=B5=8B=E8=AF=95 +=3D=3D=3D=3D + +=E6=9B=B4=E5=85=B7=E4=BD=93=E7=9A=84=E7=A4=BA=E4=BE=8B=E4=BB=A3=E7=A0=81= =E5=8F=AF=E4=BB=A5=E5=9C=A8=E5=86=85=E6=A0=B8=E6=BA=90=E7=A0=81=E7=9A=84 to= ols/testing/selftests/net/msg_zerocopy.c =E4=B8=AD=E6=89=BE=E5=88=B0=E3=80= =82 + +=E8=A6=81=E7=95=99=E6=84=8F=E7=8E=AF=E5=9B=9E=E7=BA=A6=E6=9D=9F=E9=97=AE= =E9=A2=98=E3=80=82=E8=AF=A5=E6=B5=8B=E8=AF=95=E5=8F=AF=E4=BB=A5=E5=9C=A8=E4= =B8=80=E5=AF=B9=E4=B8=BB=E6=9C=BA=E4=B9=8B=E9=97=B4=E8=BF=9B=E8=A1=8C=E3=80= =82=E4=BD=86=E5=A6=82=E6=9E=9C=E6=98=AF=E5=9C=A8=E6=9C=AC=E5=9C=B0=E7=9A=84= =E4=B8=80=E5=AF=B9=E8=BF=9B=E7=A8=8B=E4=B9=8B=E9=97=B4=E8=BF=90=E8=A1=8C=EF= =BC=8C=E4=BE=8B=E5=A6=82=E5=BD=93=E4=BD=BF=E7=94=A8 +msg_zerocopy.sh =E8=84=9A=E6=9C=AC=E5=9C=A8=E8=B7=A8=E5=91=BD=E5=90=8D=E7= =A9=BA=E9=97=B4=E7=9A=84=E8=99=9A=E6=8B=9F=E4=BB=A5=E5=A4=AA=E7=BD=91=EF=BC= =88veth=EF=BC=89=E5=AF=B9=E4=B9=8B=E9=97=B4=E8=BF=90=E8=A1=8C=E6=97=B6=EF= =BC=8C=E6=B5=8B=E8=AF=95=E5=B0=86=E4=B8=8D=E4=BC=9A=E6=98=BE=E7=A4=BA=E5=87= =BA=E4=BB=BB=E4=BD=95=E6=80=A7=E8=83=BD +=E6=8F=90=E5=8D=87=E3=80=82=E4=B8=BA=E4=BA=86=E4=BE=BF=E4=BA=8E=E6=B5=8B= =E8=AF=95=EF=BC=8C=E5=8F=AF=E4=BB=A5=E9=80=9A=E8=BF=87=E8=AE=A9 skb_orphan_= frags_rx =E4=B8=8E skb_orphan_frags =E7=9B=B8=E5=90=8C=EF=BC=8C=E6=9D=A5=E6= =9A=82=E6=97=B6=E6=94=BE=E5=AE=BD +=E7=8E=AF=E5=9B=9E=E9=99=90=E5=88=B6=E3=80=82 + +=E5=AF=B9=E4=BA=8E VSOCK =E7=B1=BB=E5=9E=8B=E5=A5=97=E6=8E=A5=E5=AD=97=E7= =9A=84=E7=A4=BA=E4=BE=8B=E5=8F=AF=E4=BB=A5=E5=9C=A8 tools/testing/vsock/vso= ck_test_zerocopy.c =E4=B8=AD=E6=89=BE=E5=88=B0=E3=80=82 --=20 2.25.1