From mboxrd@z Thu Jan 1 00:00:00 1970 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 B14ECC433FE for ; Mon, 25 Apr 2022 18:25:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244368AbiDYS2z (ORCPT ); Mon, 25 Apr 2022 14:28:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53248 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244347AbiDYS2x (ORCPT ); Mon, 25 Apr 2022 14:28:53 -0400 Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 400391CFF4 for ; Mon, 25 Apr 2022 11:25:49 -0700 (PDT) Received: from pps.filterd (m0044012.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id 23PHPFc8031666 for ; Mon, 25 Apr 2022 11:25:48 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=apGns2hv2Kojna43sNpICvdsJ0mw7txl6GqDyuzbyqg=; b=jDOe9AepZK9ByENGNI9IR4MSNc2bcbtw+NR4GhugdVxY0vz1vnbXIsqzS5Jg3Vtg8y4Z X+fraQdtugyZuvvQuiEz2x0aNHaOKq6MaNX2ttUZIFNCWNTKKehs6te4EK2zyYvb/zHw 3YljzENVIT4aaKPgdEaZLbSiT80DgSQn3M0= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com (PPS) with ESMTPS id 3fmf5f435v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Mon, 25 Apr 2022 11:25:48 -0700 Received: from twshared14141.02.ash7.facebook.com (2620:10d:c085:108::8) by mail.thefacebook.com (2620:10d:c085:11d::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 25 Apr 2022 11:25:47 -0700 Received: by devvm225.atn0.facebook.com (Postfix, from userid 425415) id 22A47E1F2A57; Mon, 25 Apr 2022 11:25:41 -0700 (PDT) From: Stefan Roesch To: , , CC: , , Jens Axboe Subject: [PATCH v3 02/12] io_uring: wire up inline completion path for CQE32 Date: Mon, 25 Apr 2022 11:25:20 -0700 Message-ID: <20220425182530.2442911-3-shr@fb.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220425182530.2442911-1-shr@fb.com> References: <20220425182530.2442911-1-shr@fb.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-GUID: 23vKJlzj_ibpLTveu7Cr4XonGotBAgZy X-Proofpoint-ORIG-GUID: 23vKJlzj_ibpLTveu7Cr4XonGotBAgZy X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.858,Hydra:6.0.486,FMLib:17.11.64.514 definitions=2022-04-25_10,2022-04-25_03,2022-02-23_01 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org Rather than always use the slower locked path, wire up use of the deferred completion path that normal CQEs can take. This reuses the hash list node for the storage we need to hold the two 64-bit values that must be passed back. Co-developed-by: Jens Axboe Signed-off-by: Stefan Roesch Signed-off-by: Jens Axboe --- fs/io_uring.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index 4c32cf987ef3..bf2b02518332 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -964,7 +964,13 @@ struct io_kiocb { atomic_t poll_refs; struct io_task_work io_task_work; /* for polled requests, i.e. IORING_OP_POLL_ADD and async armed poll */ - struct hlist_node hash_node; + union { + struct hlist_node hash_node; + struct { + u64 extra1; + u64 extra2; + }; + }; /* internal polling, see IORING_FEAT_FAST_POLL */ struct async_poll *apoll; /* opcode allocated if it needs to store data for async defer */ --=20 2.30.2