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 1E873C433F5 for ; Sat, 7 May 2022 14:06:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1446522AbiEGOKR (ORCPT ); Sat, 7 May 2022 10:10:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52190 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1446503AbiEGOKH (ORCPT ); Sat, 7 May 2022 10:10:07 -0400 Received: from mail-pj1-x1035.google.com (mail-pj1-x1035.google.com [IPv6:2607:f8b0:4864:20::1035]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15DFB3BBFF; Sat, 7 May 2022 07:06:21 -0700 (PDT) Received: by mail-pj1-x1035.google.com with SMTP id iq2-20020a17090afb4200b001d93cf33ae9so13219373pjb.5; Sat, 07 May 2022 07:06:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=LghMChCA6247tbh6MDRf5RHBI49qXWAjYTUP73PzTY0=; b=PMlb+b+z8EtTJiEGG9q1zWLnr/nPpBRSLUNGlHHkCLmreKVI5kYqZ6kwkRtmIAeEiW N6J5RHWX7sFaCNau4/O7yu6tn5azWEnaR8i+3XRLlLaXI1KWg+fUQufV38PKSMvD4hKX Iv+bx5WDcHnXpHOLnvZyjR4Hde8UaYkpx/ROlQEHNfUXO2IcKIRF+/HVO3bsJN0VicT6 9quw+zjeN7+nCpQmXDS6XBlVwTnSJtoaJlS8zXbvJNMmnalc5yVFh8AdAF+O4iGEW2BS Qya6zmJagZSIRjcMVaoUAIGNIgxl86gigWR3a+4VN3NQIgyy5NCwnszGBxqc3g+mTROd LQGA== 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=LghMChCA6247tbh6MDRf5RHBI49qXWAjYTUP73PzTY0=; b=qakSemx06PjUCy+c1+GPCAzcfnyurIuZS465gYtkOoJiHfpzRRTMaEHwfPTA0uFwpZ 64IUUMRq/p9XltRWbOsrgi2yqZBYoxXv7X3jcVxu6yH57uOu4T4cNV5UD3KqtQU/A9DE Nofc0YAN8N4VBRqY7li/8rh0n8JRDvA/c1t8ZctabHIgVAqrj3voldL1rJvNMuQZ2OOC UEwA21yxNhvcAldSRUnQ8cKL7y7WWpc/FqRJVbLZ6wVCsvyaJ8GYrseBsCfAhvmWhPQI I2QXpxx01K7bXa4ZnQ/kbv8swLQqAsb2Xo1EDe0hGuq6e8MtAoYrF4aZKHKaJuoFPKjY sVDg== X-Gm-Message-State: AOAM5316Pqvi/JQ1JDjfY0Tk5C4TICjc9w62Mg7TzcImw9qFAXDLO77q WcHj0d98JBUVw+ByLh/OlFr5+kWYjgaBZA== X-Google-Smtp-Source: ABdhPJw4KTNKNSvJysJZj8CUN46U3h+sDp3pVvlYlSf27K5hR5Uzz/TjG52rZgleLfLpiGs1nvDgtw== X-Received: by 2002:a17:90a:1509:b0:1d8:c22b:4d61 with SMTP id l9-20020a17090a150900b001d8c22b4d61mr17532701pja.78.1651932380443; Sat, 07 May 2022 07:06:20 -0700 (PDT) Received: from HOWEYXU-MB0.tencent.com ([106.53.33.166]) by smtp.gmail.com with ESMTPSA id j13-20020a170902c3cd00b0015e8d4eb2acsm3674813plj.246.2022.05.07.07.06.17 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sat, 07 May 2022 07:06:20 -0700 (PDT) From: Hao Xu To: io-uring@vger.kernel.org Cc: Jens Axboe , Pavel Begunkov , linux-kernel@vger.kernel.org Subject: [PATCH 2/4] io_uring: add REQ_F_APOLL_MULTISHOT for requests Date: Sat, 7 May 2022 22:06:18 +0800 Message-Id: <20220507140620.85871-3-haoxu.linux@gmail.com> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220507140620.85871-1-haoxu.linux@gmail.com> References: <20220507140620.85871-1-haoxu.linux@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hao Xu Add a flag to indicate multishot mode for fast poll. currently only accept use it, but there may be more operations leveraging it in the future. Also add a mask IO_APOLL_MULTI_POLLED which stands for REQ_F_APOLL_MULTI | REQ_F_POLLED, to make the code short and cleaner. Signed-off-by: Hao Xu Signed-off-by: Jens Axboe --- fs/io_uring.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/io_uring.c b/fs/io_uring.c index b6d491c9a25f..c2ee184ac693 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -116,6 +116,8 @@ #define IO_REQ_CLEAN_SLOW_FLAGS (REQ_F_REFCOUNT | REQ_F_LINK | REQ_F_HARDLINK |\ IO_REQ_CLEAN_FLAGS) +#define IO_APOLL_MULTI_POLLED (REQ_F_APOLL_MULTISHOT | REQ_F_POLLED) + #define IO_TCTX_REFS_CACHE_NR (1U << 10) struct io_uring { @@ -810,6 +812,7 @@ enum { REQ_F_SINGLE_POLL_BIT, REQ_F_DOUBLE_POLL_BIT, REQ_F_PARTIAL_IO_BIT, + REQ_F_APOLL_MULTISHOT_BIT, /* keep async read/write and isreg together and in order */ REQ_F_SUPPORT_NOWAIT_BIT, REQ_F_ISREG_BIT, @@ -874,6 +877,8 @@ enum { REQ_F_DOUBLE_POLL = BIT(REQ_F_DOUBLE_POLL_BIT), /* request has already done partial IO */ REQ_F_PARTIAL_IO = BIT(REQ_F_PARTIAL_IO_BIT), + /* fast poll multishot mode */ + REQ_F_APOLL_MULTISHOT = BIT(REQ_F_APOLL_MULTISHOT_BIT), }; struct async_poll { -- 2.36.0