From patchwork Mon Aug 15 13:09:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dylan Yudaken X-Patchwork-Id: 12943542 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 17FCEC00140 for ; Mon, 15 Aug 2022 13:12:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242692AbiHONM3 (ORCPT ); Mon, 15 Aug 2022 09:12:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51500 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242705AbiHONM1 (ORCPT ); Mon, 15 Aug 2022 09:12:27 -0400 Received: from mx0b-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07F7D15FE6 for ; Mon, 15 Aug 2022 06:12:25 -0700 (PDT) Received: from pps.filterd (m0109332.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 27ENDAbf008857 for ; Mon, 15 Aug 2022 06:12:25 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=facebook; bh=2e03wNl5VQUBm0I291lQ6WlcB1MUFpnXGdU/suH4/kw=; b=nifRl93PxPlazv/QpNsIPGlUW3hnSUvVFtj06r6q0EE3v6sz28aNVSrW++G0fEe/0Q5S 3yewEqoiN4/hQaZZV2OWYksOg+BI8zyUIG1QukK2ZzqfDePgcKnyii0CiS4dqM/KWAeY NDnqaVoeDGnhzYv9lvIbNh40NfM4Bt8rTIc= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com (PPS) with ESMTPS id 3hx9pyj355-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 15 Aug 2022 06:12:20 -0700 Received: from twshared8442.02.ash8.facebook.com (2620:10d:c085:108::8) by mail.thefacebook.com (2620:10d:c085:21d::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Mon, 15 Aug 2022 06:12:18 -0700 Received: by devbig038.lla2.facebook.com (Postfix, from userid 572232) id E8D3449B72CF; Mon, 15 Aug 2022 06:09:54 -0700 (PDT) From: Dylan Yudaken To: Jens Axboe , Pavel Begunkov , CC: , Dylan Yudaken Subject: [PATCH liburing 00/11] Defer taskrun changes Date: Mon, 15 Aug 2022 06:09:36 -0700 Message-ID: <20220815130947.1002152-1-dylany@fb.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-GUID: Du6zUq7zEYegA9Bm4CVqeGa9Z0Jy2XKl X-Proofpoint-ORIG-GUID: Du6zUq7zEYegA9Bm4CVqeGa9Z0Jy2XKl X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-08-15_08,2022-08-15_01,2022-06-22_01 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org This series adds support to liburing for the IORING_SETUP_DEFER_TASKRUN flag. The second half of the series is a bit mixed and includes some documentation fixes, overflow cleanups and test cleanups. I sent these a couple of months ago and forgot about it, but now it does depend on the new API so it needs to be ordered. I can send it separately if you like. Patches: 1 copies the definition from the kernel include file 2 introduces new APIs required for this feature 3/4/5 add tests for IORING_SETUP_DEFER_TASKRUN 6/7/8 clean and update existing documentation to match upstream 9 exposes the overflow state to the application 10 uses this and tests overflow functionality 11 gives an explicit warning if there is a short read in file-verify Dylan Yudaken (11): Copy defer task run definition from kernel add io_uring_submit_and_get_events and io_uring_get_events add a t_probe_defer_taskrun helper function for tests update existing tests for defer taskrun add a defer-taskrun test fix documentation shortenings update io_uring_enter.2 docs for IORING_FEAT_NODROP add docs for overflow lost errors expose CQ ring overflow state overflow: add tests file-verify test: log if short read man/io_uring_enter.2 | 24 +++- man/io_uring_setup.2 | 11 +- man/io_uring_wait_cqe.3 | 2 +- man/io_uring_wait_cqe_nr.3 | 2 +- man/io_uring_wait_cqe_timeout.3 | 2 +- man/io_uring_wait_cqes.3 | 2 +- src/include/liburing.h | 11 ++ src/include/liburing/io_uring.h | 7 + src/queue.c | 28 ++-- test/Makefile | 1 + test/cq-overflow.c | 248 +++++++++++++++++++++++++++++++- test/defer-taskrun.c | 217 ++++++++++++++++++++++++++++ test/eventfd-disable.c | 32 ++++- test/file-verify.c | 4 + test/helpers.c | 12 ++ test/helpers.h | 2 + test/iopoll.c | 16 ++- test/multicqes_drain.c | 49 ++++++- test/poll-mshot-overflow.c | 39 ++++- test/recv-multishot.c | 32 +++-- test/rsrc_tags.c | 10 +- 21 files changed, 697 insertions(+), 54 deletions(-) create mode 100644 test/defer-taskrun.c base-commit: 15cc446cb8b0caa5c939423d31182eba66141539