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Sat, 01 Feb 2020 15:30:49 -0800 (PST) Received: from [192.168.43.154] ([109.126.145.157]) by smtp.gmail.com with ESMTPSA id 25sm16912253wmi.32.2020.02.01.15.30.48 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 01 Feb 2020 15:30:49 -0800 (PST) To: Jens Axboe , Andres Freund , io-uring@vger.kernel.org References: <20200201125350.vkkhezidm6ka6ux5@alap3.anarazel.de> <78A9EC3E-0961-4EF3-A226-1FCA34FAF818@anarazel.de> <6f5abe8a-1897-123d-d01d-d8c7c5fba7c4@gmail.com> From: Pavel Begunkov Autocrypt: addr=asml.silence@gmail.com; prefer-encrypt=mutual; keydata= mQINBFmKBOQBEAC76ZFxLAKpDw0bKQ8CEiYJRGn8MHTUhURL02/7n1t0HkKQx2K1fCXClbps bdwSHrhOWdW61pmfMbDYbTj6ZvGRvhoLWfGkzujB2wjNcbNTXIoOzJEGISHaPf6E2IQx1ik9 6uqVkK1OMb7qRvKH0i7HYP4WJzYbEWVyLiAxUj611mC9tgd73oqZ2pLYzGTqF2j6a/obaqha +hXuWTvpDQXqcOZJXIW43atprH03G1tQs7VwR21Q1eq6Yvy2ESLdc38EqCszBfQRMmKy+cfp W3U9Mb1w0L680pXrONcnlDBCN7/sghGeMHjGKfNANjPc+0hzz3rApPxpoE7HC1uRiwC4et83 CKnncH1l7zgeBT9Oa3qEiBlaa1ZCBqrA4dY+z5fWJYjMpwI1SNp37RtF8fKXbKQg+JuUjAa9 Y6oXeyEvDHMyJYMcinl6xCqCBAXPHnHmawkMMgjr3BBRzODmMr+CPVvnYe7BFYfoajzqzq+h EyXSl3aBf0IDPTqSUrhbmjj5OEOYgRW5p+mdYtY1cXeK8copmd+fd/eTkghok5li58AojCba jRjp7zVOLOjDlpxxiKhuFmpV4yWNh5JJaTbwCRSd04sCcDNlJj+TehTr+o1QiORzc2t+N5iJ NbILft19Izdn8U39T5oWiynqa1qCLgbuFtnYx1HlUq/HvAm+kwARAQABtDFQYXZlbCBCZWd1 bmtvdiAoc2lsZW5jZSkgPGFzbWwuc2lsZW5jZUBnbWFpbC5jb20+iQJOBBMBCAA4FiEE+6Ju PTjTbx479o3OWt5b1Glr+6UFAlmKBOQCGwMFCwkIBwIGFQgJCgsCBBYCAwECHgECF4AACgkQ Wt5b1Glr+6WxZA//QueaKHzgdnOikJ7NA/Vq8FmhRlwgtP0+E+w93kL+ZGLzS/cUCIjn2f4Q Mcutj2Neg0CcYPX3b2nJiKr5Vn0rjJ/suiaOa1h1KzyNTOmxnsqE5fmxOf6C6x+NKE18I5Jy xzLQoktbdDVA7JfB1itt6iWSNoOTVcvFyvfe5ggy6FSCcP+m1RlR58XxVLH+qlAvxxOeEr/e aQfUzrs7gqdSd9zQGEZo0jtuBiB7k98t9y0oC9Jz0PJdvaj1NZUgtXG9pEtww3LdeXP/TkFl HBSxVflzeoFaj4UAuy8+uve7ya/ECNCc8kk0VYaEjoVrzJcYdKP583iRhOLlZA6HEmn/+Gh9 4orG67HNiJlbFiW3whxGizWsrtFNLsSP1YrEReYk9j1SoUHHzsu+ZtNfKuHIhK0sU07G1OPN 2rDLlzUWR9Jc22INAkhVHOogOcc5ajMGhgWcBJMLCoi219HlX69LIDu3Y34uIg9QPZIC2jwr 24W0kxmK6avJr7+n4o8m6sOJvhlumSp5TSNhRiKvAHB1I2JB8Q1yZCIPzx+w1ALxuoWiCdwV M/azguU42R17IuBzK0S3hPjXpEi2sK/k4pEPnHVUv9Cu09HCNnd6BRfFGjo8M9kZvw360gC1 reeMdqGjwQ68o9x0R7NBRrtUOh48TDLXCANAg97wjPoy37dQE7e5Ag0EWYoE5AEQAMWS+aBV IJtCjwtfCOV98NamFpDEjBMrCAfLm7wZlmXy5I6o7nzzCxEw06P2rhzp1hIqkaab1kHySU7g dkpjmQ7Jjlrf6KdMP87mC/Hx4+zgVCkTQCKkIxNE76Ff3O9uTvkWCspSh9J0qPYyCaVta2D1 Sq5HZ8WFcap71iVO1f2/FEHKJNz/YTSOS/W7dxJdXl2eoj3gYX2UZNfoaVv8OXKaWslZlgqN jSg9wsTv1K73AnQKt4fFhscN9YFxhtgD/SQuOldE5Ws4UlJoaFX/yCoJL3ky2kC0WFngzwRF Yo6u/KON/o28yyP+alYRMBrN0Dm60FuVSIFafSqXoJTIjSZ6olbEoT0u17Rag8BxnxryMrgR dkccq272MaSS0eOC9K2rtvxzddohRFPcy/8bkX+t2iukTDz75KSTKO+chce62Xxdg62dpkZX xK+HeDCZ7gRNZvAbDETr6XI63hPKi891GeZqvqQVYR8e+V2725w+H1iv3THiB1tx4L2bXZDI DtMKQ5D2RvCHNdPNcZeldEoJwKoA60yg6tuUquvsLvfCwtrmVI2rL2djYxRfGNmFMrUDN1Xq F3xozA91q3iZd9OYi9G+M/OA01husBdcIzj1hu0aL+MGg4Gqk6XwjoSxVd4YT41kTU7Kk+/I 5/Nf+i88ULt6HanBYcY/+Daeo/XFABEBAAGJAjYEGAEIACAWIQT7om49ONNvHjv2jc5a3lvU aWv7pQUCWYoE5AIbDAAKCRBa3lvUaWv7pfmcEACKTRQ28b1y5ztKuLdLr79+T+LwZKHjX++P 4wKjEOECCcB6KCv3hP+J2GCXDOPZvdg/ZYZafqP68Yy8AZqkfa4qPYHmIdpODtRzZSL48kM8 LRzV8Rl7J3ItvzdBRxf4T/Zseu5U6ELiQdCUkPGsJcPIJkgPjO2ROG/ZtYa9DvnShNWPlp+R uPwPccEQPWO/NP4fJl2zwC6byjljZhW5kxYswGMLBwb5cDUZAisIukyAa8Xshdan6C2RZcNs rB3L7vsg/R8UCehxOH0C+NypG2GqjVejNZsc7bgV49EOVltS+GmGyY+moIzxsuLmT93rqyII 5rSbbcTLe6KBYcs24XEoo49Zm9oDA3jYvNpeYD8rDcnNbuZh9kTgBwFN41JHOPv0W2FEEWqe JsCwQdcOQ56rtezdCJUYmRAt3BsfjN3Jn3N6rpodi4Dkdli8HylM5iq4ooeb5VkQ7UZxbCWt UVMKkOCdFhutRmYp0mbv2e87IK4erwNHQRkHUkzbsuym8RVpAZbLzLPIYK/J3RTErL6Z99N2 m3J6pjwSJY/zNwuFPs9zGEnRO4g0BUbwGdbuvDzaq6/3OJLKohr5eLXNU3JkT+3HezydWm3W OPhauth7W0db74Qd49HXK0xe/aPrK+Cp+kU1HRactyNtF8jZQbhMCC8vMGukZtWaAwpjWiiH bA== Subject: Re: liburing: expose syscalls? Message-ID: <9644308d-ef0e-1b94-9a3b-1a4e03bfd314@gmail.com> Date: Sun, 2 Feb 2020 02:30:04 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="NElslvWE609yywKzFnyekx2BOgzt8E1Z9" Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --NElslvWE609yywKzFnyekx2BOgzt8E1Z9 Content-Type: multipart/mixed; boundary="I0MjrXWVK5ZfSANd9uiil9pdCfCs9o165"; protected-headers="v1" From: Pavel Begunkov To: Jens Axboe , Andres Freund , io-uring@vger.kernel.org Message-ID: <9644308d-ef0e-1b94-9a3b-1a4e03bfd314@gmail.com> Subject: Re: liburing: expose syscalls? References: <20200201125350.vkkhezidm6ka6ux5@alap3.anarazel.de> <78A9EC3E-0961-4EF3-A226-1FCA34FAF818@anarazel.de> <6f5abe8a-1897-123d-d01d-d8c7c5fba7c4@gmail.com> In-Reply-To: --I0MjrXWVK5ZfSANd9uiil9pdCfCs9o165 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 02/02/2020 01:51, Jens Axboe wrote: >>> So you just want to have them exposed? I'd be fine with that. I'll >>> take a patch :-) >>> >> >> Depends on how it's used, but I'd strive to inline >> __sys_io_uring_enter() to remove the extra indirect call into the >> shared lib. Though, not sure about packaging and all this stuff. May >> be useful to do that for liburing as well. >=20 > Not sure that actually matters when you're doing a syscall anyway, that= > should be the long pole for the operation. >=20 Yeah, but they are starting to stack up (+syscall() from glibc) and can b= ecame even more layered on the user side. --=20 Pavel Begunkov --I0MjrXWVK5ZfSANd9uiil9pdCfCs9o165-- --NElslvWE609yywKzFnyekx2BOgzt8E1Z9 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEE+6JuPTjTbx479o3OWt5b1Glr+6UFAl42CgAACgkQWt5b1Glr +6VfYBAAncFUI8RJvckuXILB3fxhgc+ZEVv4n4CUsRhmL0QqJROJ7dsVYoA6egpa VQKftt3UzB/05In4o17Xigc0M1QQvaVIJ61/lRIkQTyt6lQ1Z+e+UKLQoyKXYzZi vi/Eaq4VwnJ4ge+Bb1dPfJDJHLUzirrnAVW/V0n5L+M1guOfOIuoh7OSXoQoq2oW 9aqPcYZx/3BDGaKlQEbad79bPg7TArvWC+zeSFL1Qxf0k1vOE3v97vvgN7rCunhI IgYiJw3wIGdPQyZOiw5p7tW1ngolradpLENgSpqMr/qjKbCJN/EQLSzVbT2N1XsE KfqUYVNT119P56gqbn9w84ruJxTu53IHGnxhcFYqogwksnnp5BG79G16TcL9B3oJ 2VQacCSjhqpztxxW9Rut4imljU5fzOd0snacZvebzsxcm20/TTdZjok5sIAl9aNd J5BxhQ4MB2H6cEYTg011LOwYMF55s4bCLVk8Igq6ywSzqTvtSm7CHIjFj70g1guw OEqL1+ChVAJshoLQ7YVFx08y/eRHL6ETTgEBVG/H7uuTVcIsAv0tqeBoFFVtsqDb I5MhI2LwPriv8e9i9XeIcS5V7DIgyYZoLp/pgQoLhBCfetu7cbN0FFBs9NIzHtzF 5gdjlxDSVTKYi106ssZfXIdBRvW/CerP/Sv+fDTMvxGzz6Tt+XQ= =Ox+5 -----END PGP SIGNATURE----- --NElslvWE609yywKzFnyekx2BOgzt8E1Z9--