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 4CAC7C433F5 for ; Fri, 4 Feb 2022 14:51:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359491AbiBDOvf (ORCPT ); Fri, 4 Feb 2022 09:51:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359484AbiBDOv1 (ORCPT ); Fri, 4 Feb 2022 09:51:27 -0500 Received: from mail-wr1-x42b.google.com (mail-wr1-x42b.google.com [IPv6:2a00:1450:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8FC38C061748 for ; Fri, 4 Feb 2022 06:51:26 -0800 (PST) Received: by mail-wr1-x42b.google.com with SMTP id r17so2750591wrr.6 for ; Fri, 04 Feb 2022 06:51:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ymoa5X9VDt1Lo7923G6xQz+2XF6WMF2nPpUrkksIMss=; b=Xopc4Nkg8x7cYq22CMvzmComoF0CuwSoz//ulwpXuNdB841RjSYEx8qZRKc6BHGmU5 EPXcpzWtRzbpveFJQAKHvcgxcwz6OmxZQVSz5o9xJeTL/Tx2IU998rs9wHupVWJHcW61 G8xjIDSkxMItkiCWo2THoUZMQolHmRRBLBXsjYEeXRLsejRRzZZwcE2w+UbCZ59w3smU 3fNcS3DL4k1XSN068MgJeeV3nDtzGUUEOCFWcfV4762t1hNXbZIpUNyy+i/djzqv65t0 Cv1cTnwGEU68aaI3K5vesGD0Y66vVvhTBH1Tn3bD9q9CwnXcEqC6HAcbARH45YJnJzsU ChNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ymoa5X9VDt1Lo7923G6xQz+2XF6WMF2nPpUrkksIMss=; b=6nNyTW1piaxP+gecP8IVc8duNLhJld3uFm2RvL8x/1roJhjytGy+PYw6CZOm8nHJ/E 137qbMKWZIpHioj+Wmi5GPq5W8xfqDbzVjSBuFV9AOLmA/7fp2+X8NkdRqR7sEVLZeHE W/BzyRbaNVShR854GRlUgqnmHiZhSVWZoVIwRrjPeOXvyuMzDlkaU2OIu5MtYtohky54 GBD5CY9KTNkmh38t39EFleTOKsel15YNueWdSRb9AjXebZ1q6HWuqmQZBoSWuFvp0DP2 zDeFB7CwUh3CZg17txe97G3xW3jNBGMcMNTga2J7Aa/Ll4pKFhzHlK30v2IhhDHrejWa vyCA== X-Gm-Message-State: AOAM531+obxJyxmLk1Vkvt7BwfhayUuFv4Qcv74uZxaz3gwYKrAV0Bwz EPDsPKtguPcwZ5/1y6YmqTRK2Q== X-Google-Smtp-Source: ABdhPJykTMrOCuJ93oe7UN/RWNzj2G8gPRf2kOv+qJS1PEv/rFiPf7S0PHstOzbImEPkHrt2QrJSUg== X-Received: by 2002:a5d:5342:: with SMTP id t2mr1775121wrv.602.1643986285245; Fri, 04 Feb 2022 06:51:25 -0800 (PST) Received: from usaari01.cust.communityfibre.co.uk ([2a02:6b6d:f804:0:e94c:d0f2:1084:a0d3]) by smtp.gmail.com with ESMTPSA id c11sm2552898wri.43.2022.02.04.06.51.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Feb 2022 06:51:24 -0800 (PST) From: Usama Arif To: io-uring@vger.kernel.org, axboe@kernel.dk, asml.silence@gmail.com, linux-kernel@vger.kernel.org Cc: fam.zheng@bytedance.com, Usama Arif Subject: [PATCH v6 4/5] io_uring: avoid ring quiesce while registering restrictions and enabling rings Date: Fri, 4 Feb 2022 14:51:16 +0000 Message-Id: <20220204145117.1186568-5-usama.arif@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220204145117.1186568-1-usama.arif@bytedance.com> References: <20220204145117.1186568-1-usama.arif@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org IORING_SETUP_R_DISABLED prevents submitting requests and so there will be no requests until IORING_REGISTER_ENABLE_RINGS is called. And IORING_REGISTER_RESTRICTIONS works only before IORING_REGISTER_ENABLE_RINGS is called. Hence ring quiesce is not needed for these opcodes. Signed-off-by: Usama Arif --- fs/io_uring.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/io_uring.c b/fs/io_uring.c index 671c57f9c1fa..a2ce2601d4de 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -11007,6 +11007,8 @@ static bool io_register_op_must_quiesce(int op) case IORING_REGISTER_PROBE: case IORING_REGISTER_PERSONALITY: case IORING_UNREGISTER_PERSONALITY: + case IORING_REGISTER_ENABLE_RINGS: + case IORING_REGISTER_RESTRICTIONS: case IORING_REGISTER_FILES2: case IORING_REGISTER_FILES_UPDATE2: case IORING_REGISTER_BUFFERS2: -- 2.25.1