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 X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EED52C433E0 for ; Wed, 3 Jun 2020 13:31:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BF8B62081A for ; Wed, 3 Jun 2020 13:31:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="SX7EXBKX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726072AbgFCNbK (ORCPT ); Wed, 3 Jun 2020 09:31:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47276 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725986AbgFCNbH (ORCPT ); Wed, 3 Jun 2020 09:31:07 -0400 Received: from mail-wm1-x341.google.com (mail-wm1-x341.google.com [IPv6:2a00:1450:4864:20::341]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 34F42C08C5C0; Wed, 3 Jun 2020 06:31:07 -0700 (PDT) Received: by mail-wm1-x341.google.com with SMTP id r15so2072921wmh.5; Wed, 03 Jun 2020 06:31:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=Ug04v6Jn7KtzsZvcqnMoFN+l9wsT6C3eF7QM3sTdkpI=; b=SX7EXBKX815JEwI+NZkYBbCIuAKonRUmnU+LA1P22GDo2EKCW876sdkZZ1GhibAFPp IXl73LuD++hONUI1a6W4llkTG5P9kXtrjsri3J+3CsUvpcpKjUmhXkdzDU6uu3NbnFr9 zo+TWVR9SF6O4RQSYanGUHeQQdsdeficBOPKD5ufdFLaO17vZ/kR1C5PRM1UJEHVNB6R BxHaNLrvWPYc12XFbpN75TmKC5XzyT3pyC7vr+MsdR+eUkfGmgiIWA93isV2vVRrOH0n ZbxRWushMPvytRBlxQsd0Eu9oL2z5KeDM68NMCquEydv08NGhuOU+4LGCXbEppdckXmz SJKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Ug04v6Jn7KtzsZvcqnMoFN+l9wsT6C3eF7QM3sTdkpI=; b=IQhJ1n0ZhQVgbJEoVUVt2R0wR1k1GVns1Iwwh/G/8M+iS1l9Mfd49v6lYqoHWFuJbV SdCqDtmxpCVCO/eEx6FW/P/OAwh2PcfdmrHdJgMQGdMxFIKv6s9Fo3l0RvsBWfSMmrk3 MJ6i0NDL3B3fNaoDfb5/vDs956l2uNMK/rM5kN95Qcw1jmTL9G5y0mM5NkwfWCVq3MVC Ee6LjvCcS1lTYfA+F8lWSbFIfwkGFWWkI8Uxw1XTwmfUpmrCI65ONjEJyUIWmInE/RgC egtqsLyUXsZNo0q/me69I6RIntFLU2j/is2NQ0FaDPQVBOMIEqCu0Tzey9HtFdlnUTpJ 5miA== X-Gm-Message-State: AOAM532C1Z0vG5NYtqk5c1eLBo0len5VEv5inKFLonNflH5y6b906xax xeWwFgjUgTbeAymzK9ejTmg= X-Google-Smtp-Source: ABdhPJxhU3wtubL0XYgQeuqU3kqyBy4wTGLgcGZvg3MDZC0YU56m3tSAlWR4GNFlvRcJPTq1x2ybNg== X-Received: by 2002:a05:600c:2153:: with SMTP id v19mr8421505wml.47.1591191065901; Wed, 03 Jun 2020 06:31:05 -0700 (PDT) Received: from localhost.localdomain ([5.100.193.151]) by smtp.gmail.com with ESMTPSA id a1sm3189716wmd.28.2020.06.03.06.31.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Jun 2020 06:31:05 -0700 (PDT) From: Pavel Begunkov To: Jens Axboe , io-uring@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 4/4] io_uring: move send/recv IOPOLL check into prep Date: Wed, 3 Jun 2020 16:29:32 +0300 Message-Id: <9f6728ae45054de27b0434e49ba8bc0ea537d5fc.1591190471.git.asml.silence@gmail.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Fail recv/send in case of IORING_SETUP_IOPOLL earlier during prep, so it'd be done only once. Removes duplication as well Signed-off-by: Pavel Begunkov --- fs/io_uring.c | 18 ++++++------------ 1 file changed, 6 insertions(+), 12 deletions(-) diff --git a/fs/io_uring.c b/fs/io_uring.c index 7d49bcba859c..d63a13d10de0 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -3555,6 +3555,9 @@ static int io_sendmsg_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) struct io_async_ctx *io = req->io; int ret; + if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) + return -EINVAL; + sr->msg_flags = READ_ONCE(sqe->msg_flags); sr->msg = u64_to_user_ptr(READ_ONCE(sqe->addr)); sr->len = READ_ONCE(sqe->len); @@ -3584,9 +3587,6 @@ static int io_sendmsg(struct io_kiocb *req, bool force_nonblock) struct socket *sock; int ret; - if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) - return -EINVAL; - sock = sock_from_file(req->file, &ret); if (sock) { struct io_async_ctx io; @@ -3640,9 +3640,6 @@ static int io_send(struct io_kiocb *req, bool force_nonblock) struct socket *sock; int ret; - if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) - return -EINVAL; - sock = sock_from_file(req->file, &ret); if (sock) { struct io_sr_msg *sr = &req->sr_msg; @@ -3795,6 +3792,9 @@ static int io_recvmsg_prep(struct io_kiocb *req, struct io_async_ctx *io = req->io; int ret; + if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) + return -EINVAL; + sr->msg_flags = READ_ONCE(sqe->msg_flags); sr->msg = u64_to_user_ptr(READ_ONCE(sqe->addr)); sr->len = READ_ONCE(sqe->len); @@ -3823,9 +3823,6 @@ static int io_recvmsg(struct io_kiocb *req, bool force_nonblock) struct socket *sock; int ret, cflags = 0; - if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) - return -EINVAL; - sock = sock_from_file(req->file, &ret); if (sock) { struct io_buffer *kbuf; @@ -3887,9 +3884,6 @@ static int io_recv(struct io_kiocb *req, bool force_nonblock) struct socket *sock; int ret, cflags = 0; - if (unlikely(req->ctx->flags & IORING_SETUP_IOPOLL)) - return -EINVAL; - sock = sock_from_file(req->file, &ret); if (sock) { struct io_sr_msg *sr = &req->sr_msg; -- 2.24.0