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=-8.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 8EF80C433E0 for ; Wed, 27 Jan 2021 08:56:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 49F4E20759 for ; Wed, 27 Jan 2021 08:56:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233523AbhA0I42 (ORCPT ); Wed, 27 Jan 2021 03:56:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56780 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233015AbhA0Iwz (ORCPT ); Wed, 27 Jan 2021 03:52:55 -0500 Received: from mail-ej1-x62a.google.com (mail-ej1-x62a.google.com [IPv6:2a00:1450:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A956C061788 for ; Wed, 27 Jan 2021 00:52:03 -0800 (PST) Received: by mail-ej1-x62a.google.com with SMTP id ke15so1487348ejc.12 for ; Wed, 27 Jan 2021 00:52:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=f/BR3uffwCyKx030EOkRgzSWxdzdCXfeE28wpSAa58Y=; b=QUJYhXbNodk+o63FOmt+aJqQNARu3xF051Xgap7AiAsac2APyzh3C2V4XjdpABL06q TS+0E224fGJUvGffdSfvcXPhq2h2Wmc5MuoGU5W8wMX17dFHeTIp/zMhPQPqCLeMqZz1 I6u7jM8fgFC4YJ4sqi6KEqjZF+ZavubKCelXuoORBwRsVmaCa3gxuN2f+KT1nm5nvEb8 mAmKw8WnSHcwVykR20t4VOK32WvXPtaHi/su3FeL6B2JwFtKuQoOaDEefx/jAIdR4MiW L/wDiCprEQ/ddM70E/Lev/DyIv46vkcEJOXMbxWf18n64dBBPulTDNUvUJtp7jV0At9G ikKw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=f/BR3uffwCyKx030EOkRgzSWxdzdCXfeE28wpSAa58Y=; b=MqiJE51jUqXxqZfn9ACRHBtCfFBYOZRd06S3OZDfbjGe6JhCOOaVuNcVRmos2/kxFj y19cYmlKrT76U7OTtUAHSRBpq9s0dlPySBSEB92gpnatWo5cBJCT+PitV6V/Kg+8TP1/ MynJ/wE9hIoy1gvJUnEsAaeY0XkJOaANNjdxFl6ljmVtrXQYEdXDPI4c/YLgB749QfX7 wTiw7D4K6lKcaEIsnzZs2AP6yEJDZdX4dYOeOZi9jsjKjjWRz46vBe9RPhIOgFe19Uyz 9lRftSdNOPdfuUsm25UM2x6UP7j8eJXMSHMNGJwpQWwr45l4nSGxCH2gO4wTi5qfcQrs 52Dw== X-Gm-Message-State: AOAM5317seK4XXx6Jvo8/nPhfRmVM4+RYPbWuM+Qmm54ckHlyCettxRD zXJJJuV2wH2q4T+S7u65GHuWzTHMFydfpBPzw8ci X-Google-Smtp-Source: ABdhPJy8QImyO/JV79mc2tjpskMBQbjCVHOC5cdkEvkwAJ6kHk13J3Oa6D7gnCZsrqApWB+pINgU3unV/iSbuPna1vA= X-Received: by 2002:a17:906:128e:: with SMTP id k14mr5870557ejb.427.1611737522225; Wed, 27 Jan 2021 00:52:02 -0800 (PST) MIME-Version: 1.0 References: <20210119045920.447-1-xieyongji@bytedance.com> <20210119050756.600-1-xieyongji@bytedance.com> <20210119050756.600-4-xieyongji@bytedance.com> <406479e4-a4f8-63f3-38f5-b1c3bb6e31ab@redhat.com> In-Reply-To: <406479e4-a4f8-63f3-38f5-b1c3bb6e31ab@redhat.com> From: Yongji Xie Date: Wed, 27 Jan 2021 16:51:51 +0800 Message-ID: Subject: Re: Re: [RFC v3 10/11] vduse: grab the module's references until there is no vduse device To: Jason Wang Cc: "Michael S. Tsirkin" , Stefan Hajnoczi , sgarzare@redhat.com, Parav Pandit , Bob Liu , Christoph Hellwig , Randy Dunlap , Matthew Wilcox , viro@zeniv.linux.org.uk, axboe@kernel.dk, bcrl@kvack.org, Jonathan Corbet , virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, kvm@vger.kernel.org, linux-aio@kvack.org, linux-fsdevel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Tue, Jan 26, 2021 at 4:10 PM Jason Wang wrote: > > > On 2021/1/19 =E4=B8=8B=E5=8D=881:07, Xie Yongji wrote: > > The module should not be unloaded if any vduse device exists. > > So increase the module's reference count when creating vduse > > device. And the reference count is kept until the device is > > destroyed. > > > > Signed-off-by: Xie Yongji > > > Looks like a bug fix. If yes, let's squash this into patch 8. > Will do it. Thanks, Yongji