Received: by 2002:a05:6a10:1d13:0:0:0:0 with SMTP id pp19csp4374098pxb; Tue, 31 Aug 2021 03:41:42 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxjc8cks/6uiH2ZVk+YDSmmAfeGMoBlzQ/xg3Z6pCMjhrFwct97+VwRuk1MmCPtSXw4fKOq X-Received: by 2002:a5d:8505:: with SMTP id q5mr14610433ion.53.1630406502487; Tue, 31 Aug 2021 03:41:42 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630406502; cv=none; d=google.com; s=arc-20160816; b=dCc+x5e/b9Uu6HFpM4jeupeQXHPUXt4RNR4nZTM3nSEGNtAEbxg3eltM1cSNdt/s5d Meal3RfDKlWLsiRzrMU4RbKCZMQLgezeh1Vb3XUBOTooX4VshWGR2fo3ZXnU9/WZNuS4 Wp8rV0AnZDxBZjjjYn2tooxXbK3Sx6bMSF89LfKl0h+fFdj8SzpI09m721vfuodUbWwf /breIvMZpB+GXNtG/Ewjn/KCLrVtyLXkHFJ8h45SIqfx9HkPXU1mgjUWZDaWStBdPz5b kxs7JydIn4ufN/OYQ5bEI4iTVFAjrNCOYGMkqiPE4ehm34fxCrm3uHdgcnIykuMFtXur 88DQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=/Vl3AHwuQDLe0ZGngtEfFx668CIPSygY8Oaw4ZN4vCo=; b=l36qdBxqqac1WTtrNo9oTJsRNkSq/PVay6RqHjfIRZzp3H6MbdilfeIit3zr9eh7Yy X+tz1TdO5gnBxJO12kV1sh3qROFMYi9ogBWBrNesePyEqkGXY61l9jyW7NfSedqPX/VF Hl/mKmve16dcpCUOBLblby4WA43fRuRIAJroJGTbh+AQhCFHwl26sPt9b2EjA16vldfX mQXGcwV/bd1ALjYXulVEKOQhjeo3b+NodHQrLT7nzWnW82bDEW5aE0ZIDrcYT3aRvBHd mpv9dQYRZd0oks7rqhST1OtwQieBVp5bZbkAuV5/Vudkt3zbPLkJJh/hCXKt/qEhntgo iU0w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@bytedance-com.20150623.gappssmtp.com header.s=20150623 header.b=wObpuu7t; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=bytedance.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id r5si16343881jan.104.2021.08.31.03.41.31; Tue, 31 Aug 2021 03:41:42 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@bytedance-com.20150623.gappssmtp.com header.s=20150623 header.b=wObpuu7t; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=bytedance.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241390AbhHaKkp (ORCPT + 99 others); Tue, 31 Aug 2021 06:40:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39062 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241104AbhHaKi2 (ORCPT ); Tue, 31 Aug 2021 06:38:28 -0400 Received: from mail-pf1-x430.google.com (mail-pf1-x430.google.com [IPv6:2607:f8b0:4864:20::430]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0671FC0617AD for ; Tue, 31 Aug 2021 03:37:12 -0700 (PDT) Received: by mail-pf1-x430.google.com with SMTP id v123so14575678pfb.11 for ; Tue, 31 Aug 2021 03:37:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=/Vl3AHwuQDLe0ZGngtEfFx668CIPSygY8Oaw4ZN4vCo=; b=wObpuu7touPHyE2FlMtp6j82DVKvgvJGqxVDpQh426PCA4G0/SKGQXKEyHJVZQ8cIm L9XkoweTnt+6I4BW0Mn5WMJvosr3G5o8gM7IIYvH3KGm6heQlvcQObzommcU8i7cnUT0 QRgkYd46omJIk7r6/K6p/cRey3grFpdCYxr0txvNQ+lkyVHC2OMROz/ezIQJEf6W9yvR 2jeQJkG2XFVufs6nY4wO6FwV8xejE3tq1kLU6PROTvNysrRr7cvUwW3cLlScU5q9AQEA thnUcb8QN1ab0y0YDAkUPLMGlydGB6EUB2ANfuVz00VX5Kyh4O6qNPMi5OPi5yf/pyIu 26kg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=/Vl3AHwuQDLe0ZGngtEfFx668CIPSygY8Oaw4ZN4vCo=; b=rUJtHb6zz20/+5wqeiMX9/UV4HAlEe3eHkIrAhI6OUrqoUWW3f8YuOfZgC2kkkaEtB Gjpbm7Q5ePdhH0gAw4Rp7KvT2OrENFE9FwsRixTWG/8tciL1VfYqiPU1qLDZyTIFL2pq 1hKxOcfIHOykklp6YKQLQGchzioDaHGejp/JpS0RGCba79+D9uqt8UpWzHwEmYOr9VlY tik9WupWre5gzCSpx0WBDdl9zzevBgVfZ5c5fTtFoe6FVgj8n0pTfVKukBx37HtYEWk0 QTjhXNgxYHaNxsjLQjLlu93xd4nwmJec/81BTMWB3+rJcdIRu5tVDSBnGnIxKmZptQSe mKDA== X-Gm-Message-State: AOAM531aTaVa3NZGleBn/uV8r5Ggy5Aa3rKgyPwP+DSafAKNhCVnA4Rp HtuQnJAjMsIAoC16OExf1Zwr X-Received: by 2002:a63:101c:: with SMTP id f28mr26080762pgl.330.1630406231592; Tue, 31 Aug 2021 03:37:11 -0700 (PDT) Received: from localhost ([139.177.225.253]) by smtp.gmail.com with ESMTPSA id x15sm6941154pfq.31.2021.08.31.03.37.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 Aug 2021 03:37:11 -0700 (PDT) From: Xie Yongji To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com, sgarzare@redhat.com, parav@nvidia.com, hch@infradead.org, christian.brauner@canonical.com, rdunlap@infradead.org, willy@infradead.org, viro@zeniv.linux.org.uk, axboe@kernel.dk, bcrl@kvack.org, corbet@lwn.net, mika.penttila@nextfour.com, dan.carpenter@oracle.com, joro@8bytes.org, gregkh@linuxfoundation.org, zhe.he@windriver.com, xiaodong.liu@intel.com, joe@perches.com, robin.murphy@arm.com, will@kernel.org, john.garry@huawei.com Cc: songmuchun@bytedance.com, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kvm@vger.kernel.org, linux-fsdevel@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH v13 02/13] eventfd: Export eventfd_wake_count to modules Date: Tue, 31 Aug 2021 18:36:23 +0800 Message-Id: <20210831103634.33-3-xieyongji@bytedance.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210831103634.33-1-xieyongji@bytedance.com> References: <20210831103634.33-1-xieyongji@bytedance.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Export eventfd_wake_count so that some modules can use the eventfd_signal_count() to check whether the eventfd_signal() call should be deferred to a safe context. Signed-off-by: Xie Yongji --- fs/eventfd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/eventfd.c b/fs/eventfd.c index e265b6dd4f34..1b3130b8d6c1 100644 --- a/fs/eventfd.c +++ b/fs/eventfd.c @@ -26,6 +26,7 @@ #include DEFINE_PER_CPU(int, eventfd_wake_count); +EXPORT_PER_CPU_SYMBOL_GPL(eventfd_wake_count); static DEFINE_IDA(eventfd_ida); -- 2.11.0