From patchwork Tue Apr 11 11:06:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Begunkov X-Patchwork-Id: 13207395 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 41071C76196 for ; Tue, 11 Apr 2023 11:13:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229679AbjDKLNP (ORCPT ); Tue, 11 Apr 2023 07:13:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230058AbjDKLNE (ORCPT ); Tue, 11 Apr 2023 07:13:04 -0400 Received: from mail-ej1-x62f.google.com (mail-ej1-x62f.google.com [IPv6:2a00:1450:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B511346B1 for ; Tue, 11 Apr 2023 04:12:50 -0700 (PDT) Received: by mail-ej1-x62f.google.com with SMTP id j17so9682892ejs.5 for ; Tue, 11 Apr 2023 04:12:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1681211569; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Vk+L5iCXvmHnZt4vc6rvDG8PS1OW/kzTiKfkRlYy0ZY=; b=HlfwovvjkIP5woFiUF4XO8MoGOOVrUhZIRgJvrf7Z8sQmiKunOBVPMpZZyAgBO70mH 156U4jxmU0/MsEnrfGl6k/fhtCj2ZMqWMnoBc9Qq3U2PGVND6Xe/trWVXTBXkIwkrJxX WwJW0gtqa/dDJHzcxxXVnyNUfHqGlxQtqPpXTAmNMVRqp7uPC9YLVhfXErZ50qbYb9AK RxPxRxy5ucxsiP04TFKIsCqiFwCOMFw/4ULNFygGmL7CG8jDdyFJuAKxpE7ftoRYQTEX Iy6GEUs03HWRi2aowyAAeJ9vUsYF0izQFPZ6QXyM/Gfk6keanl8gYTR+qvz+6itGGVyq 0zgA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1681211569; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Vk+L5iCXvmHnZt4vc6rvDG8PS1OW/kzTiKfkRlYy0ZY=; b=36bYkL9uLmOON4B4OirsJJhe8j6+VzBDhCAIcGpJ4UJuxkxxobKWVgyaicEm6PZaKL 6NiEPEXTWVp0cv243jGAKZeGW9UeifVyOdzFvbskfYhEaTOWa0Hp6Zq31mITpsETkcTi yrsWnXoTZ2SkaaSm6fJArFRzY+Y7yDL95+M+JnWwuRxzMbQoIQjBZ7OcxAOVZMRLNirM LMumxWKNVMrsO/Qnj7iJ4PbA6C0VK3SMK4iRk6+kfu8sf1HlA55+LPTQb+wUAxdBmvQg bBV+3d4wVDYRPHyd2GIWGzrtTMtcoydSHeD+wBBc/QIfKCau+9sRQFwJhx46Zr5FAXkj /kig== X-Gm-Message-State: AAQBX9eP34mSgR0m++FMkdfrrN+mmWt9R62YilzotPuyTWjBmjBjA1ws dhw2w2EeAirAT6G5GxegvRh88Y8Rfx4= X-Google-Smtp-Source: AKy350YwjVmarvrgfIDX7q+nnMGZ+t7/ZlrEB8KXNFn89LagCt/dP1dK6wrH275mWwv3Fp4hgH8KUA== X-Received: by 2002:a17:906:d055:b0:94a:4d06:3de3 with SMTP id bo21-20020a170906d05500b0094a4d063de3mr2092795ejb.72.1681211568880; Tue, 11 Apr 2023 04:12:48 -0700 (PDT) Received: from 127.com ([2620:10d:c092:600::2:ddc3]) by smtp.gmail.com with ESMTPSA id ww7-20020a170907084700b00947a40ded80sm6006787ejb.104.2023.04.11.04.12.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Apr 2023 04:12:48 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: Jens Axboe , asml.silence@gmail.com Subject: [PATCH 3/8] io_uring: add irq lockdep checks Date: Tue, 11 Apr 2023 12:06:03 +0100 Message-Id: X-Mailer: git-send-email 2.40.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org We don't post CQEs from the IRQ context, add a check catching that. Signed-off-by: Pavel Begunkov --- io_uring/io_uring.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/io_uring/io_uring.h b/io_uring/io_uring.h index ef449e43d493..25515d69d205 100644 --- a/io_uring/io_uring.h +++ b/io_uring/io_uring.h @@ -94,6 +94,8 @@ bool io_match_task_safe(struct io_kiocb *head, struct task_struct *task, #define io_lockdep_assert_cq_locked(ctx) \ do { \ + lockdep_assert(in_task()); \ + \ if (ctx->flags & IORING_SETUP_IOPOLL) { \ lockdep_assert_held(&ctx->uring_lock); \ } else if (!ctx->task_complete) { \