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 27A0CC433EF for ; Wed, 20 Apr 2022 19:15:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347102AbiDTTRy (ORCPT ); Wed, 20 Apr 2022 15:17:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347774AbiDTTRw (ORCPT ); Wed, 20 Apr 2022 15:17:52 -0400 Received: from mx0a-00082601.pphosted.com (mx0b-00082601.pphosted.com [67.231.153.30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1ED5325EF for ; Wed, 20 Apr 2022 12:15:02 -0700 (PDT) Received: from pps.filterd (m0089730.ppops.net [127.0.0.1]) by m0089730.ppops.net (8.16.1.2/8.16.1.2) with ESMTP id 23KILVpg020661 for ; Wed, 20 Apr 2022 12:15:02 -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=nta286uuCUaJPFGBxCp6HnXgmRiR0IHK/76aiK2+lq6MqbRERxkJMMtGHStfhixOjUdh lgPwJD6K/ghD2AA3J3UIJa0f3GLRRYQFeZem7nFuQR/N6RfGuwHvgPxrFVJF1nJc4Ing p/pPwiRsOncuCjuEoQI0Se5jfzZETBLu14A= Received: from maileast.thefacebook.com ([163.114.130.16]) by m0089730.ppops.net (PPS) with ESMTPS id 3fhn4j4ekj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 20 Apr 2022 12:15:02 -0700 Received: from twshared8508.05.ash9.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:82::c) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 20 Apr 2022 12:15:01 -0700 Received: by devvm225.atn0.facebook.com (Postfix, from userid 425415) id 8C8DADE0C408; Wed, 20 Apr 2022 12:14:53 -0700 (PDT) From: Stefan Roesch To: , CC: , Jens Axboe Subject: [PATCH v2 02/12] io_uring: wire up inline completion path for CQE32 Date: Wed, 20 Apr 2022 12:14:41 -0700 Message-ID: <20220420191451.2904439-3-shr@fb.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220420191451.2904439-1-shr@fb.com> References: <20220420191451.2904439-1-shr@fb.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-GUID: -wokqMQt0M7srXgvdbhnWBRMxDAotaKQ X-Proofpoint-ORIG-GUID: -wokqMQt0M7srXgvdbhnWBRMxDAotaKQ 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=2022-04-20_05,2022-04-20_01,2022-02-23_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