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 67EDFC4332F for ; Thu, 15 Dec 2022 18:49:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229678AbiLOStk (ORCPT ); Thu, 15 Dec 2022 13:49:40 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229748AbiLOStb (ORCPT ); Thu, 15 Dec 2022 13:49:31 -0500 Received: from mail-ot1-x32d.google.com (mail-ot1-x32d.google.com [IPv6:2607:f8b0:4864:20::32d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9320D2409B for ; Thu, 15 Dec 2022 10:49:30 -0800 (PST) Received: by mail-ot1-x32d.google.com with SMTP id p24-20020a0568301d5800b0066e6dc09be5so15884oth.8 for ; Thu, 15 Dec 2022 10:49:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:date:message-id:subject :references:in-reply-to:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=2xrKh7psmcPkRK+1oa6796wnAtl9xswN+IYST7Q8GbU=; b=4rqNoyFuDiWFlzoGj3JKy3NIAkA4R3PD0uxm3N0YULmqQelAgFKQjUyOk2f3vsrcbL cnqCQKdVtXEGE9IeFwujOnDXeZ46cMVMo20OZpo9WnJxhFwPHjHDuNw7wK3m2yXOeCtE HCswQxtOn3SyJtf00G6eU+pjIc5UMYbP2xANx6gDV9YTM9h9U5581ifDznmPGEUHNeNX 0F1W0PkTPyVthxYgaUH3YUUen10/H1tVIj+UKM2o0GY7rxvfbhG1rSxRqmZK3VS2DeOg rQ2K5pabewfjbkNCNCDd9xE6hlwQCpcxjzxzhgdW6uy9TNogDdOx/7UebeMFUV0rCSns IrNA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:date:message-id:subject :references:in-reply-to:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2xrKh7psmcPkRK+1oa6796wnAtl9xswN+IYST7Q8GbU=; b=pZDeSUEcYAFOnB2DjF9APEB7fYd0dU8xQ3uPa1NoPKzqPx8RY/8Y9JM/vA9Ik25/DI OyrkeiNHS3tMiJ3HSitnWOiRR9Ud1L3sVcmDwyWf7N8WkG0Od7xjpV+GWnX/4BrmnwOJ 1zel7ymlgd/Ct2Y324wZI6F7LegN078AMT6uCydo/iofaoLR1fe0bhY8GQWpSyT0Yj7u J2o2Vpdd3IWSgF7raN0VjApy7AR/qRA/gsZxVxuCrwF5sc47aDDF/gpU9bgoes/KgWcb kag6Fdz4gq2zCOOdM0cV0y1I550pxZNVgZhAGD6mq83s77cj9/zGQpZsxdVj+teyB487 w/jQ== X-Gm-Message-State: ANoB5pmIu1p5AHNbDOTYHUrylv4MZ+yPpePvPK5rTWZGk+NiAmC55xVm aVknY6rGXF9x0CiaOJ8qejdbRQ== X-Google-Smtp-Source: AA0mqf4oEqBdv2JBCMuk2lCpzJ56f8NEc4zt/d+IVDlpqhGorrrG8KtNIS2+XSpyl9vDhxOsrvVK9w== X-Received: by 2002:a05:6830:336a:b0:670:77e9:4b98 with SMTP id l42-20020a056830336a00b0067077e94b98mr2990502ott.2.1671130169605; Thu, 15 Dec 2022 10:49:29 -0800 (PST) Received: from [127.0.0.1] ([207.135.234.126]) by smtp.gmail.com with ESMTPSA id v21-20020a9d7d15000000b0066c3bbe927esm3846497otn.21.2022.12.15.10.49.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Dec 2022 10:49:28 -0800 (PST) From: Jens Axboe To: Pavel Begunkov , Dylan Yudaken Cc: io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@fb.com, Joel Fernandes , "Paul E . McKenney" In-Reply-To: <20221215184138.795576-1-dylany@meta.com> References: <20221215184138.795576-1-dylany@meta.com> Subject: Re: [PATCH] io_uring: use call_rcu_hurry if signaling an eventfd Message-Id: <167113016853.52282.4184815382776784529.b4-ty@kernel.dk> Date: Thu, 15 Dec 2022 11:49:28 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.11.0-dev-50ba3 Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On Thu, 15 Dec 2022 10:41:38 -0800, Dylan Yudaken wrote: > io_uring uses call_rcu in the case it needs to signal an eventfd as a > result of an eventfd signal, since recursing eventfd signals are not > allowed. This should be calling the new call_rcu_hurry API to not delay > the signal. > > Signed-off-by: Dylan Yudaken > > [...] Applied, thanks! [1/1] io_uring: use call_rcu_hurry if signaling an eventfd commit: de8f0209fe8064172a86a61537a7b21d6e5334ad Best regards, -- Jens Axboe