From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DDA5072 for ; Wed, 13 Oct 2021 12:18:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1634127483; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=8uA+gFhUzMMrb5D5fxARTwQwcT+AEfWKWkQ0ooGMKj8=; b=gcZphIhv1SUibhOpSsOSgz4m0cbJvHyEtd0kwtKyNGk7PlE0SU+JPX+FUmjzkGHkvuPJuI RYeShTXWeJ1jx+SFek2K1Tc6X4vwuEpu4Q3Rv6491+05hOgYMfee2etkukNn00qGLGJeMY ljgHBxDZGBTUGlUD8++dZn6sdjVlaG0= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-519-Rs8Zpv0BMLuMk50emKCmBQ-1; Wed, 13 Oct 2021 08:18:02 -0400 X-MC-Unique: Rs8Zpv0BMLuMk50emKCmBQ-1 Received: by mail-wr1-f71.google.com with SMTP id r16-20020adfbb10000000b00160958ed8acso1799143wrg.16 for ; Wed, 13 Oct 2021 05:18:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=8uA+gFhUzMMrb5D5fxARTwQwcT+AEfWKWkQ0ooGMKj8=; b=fbNCYPXBMGYXgCS0vSWrrSfv9BoaAONG6A0mWA7PMos5Xmbjw5sUAuYJjZozxBrw/B tCp7f0F/VmuJCShnjg6dEIu/tO6SeNEsrbpkY7cHxneYSUzZaX1YkgW0cB26CEX/gyP/ 5EtdXO4zaq2nMI7mJpOBBdbi8LPUC9VWNKDMgpmfDJkxB/pn7/qsUVCv0XrAqql2lCQt PUHq675Y0r0Leod6KJLLm5nvABC4451EdmFDGXtfCBILOcA9H2LhvLN2sYZelw2Z9kwW VNwZLJ9OTX0NvdOqhUGlLEF4e3+f9kh/UoT/wZW+eCdbyDxFP3iizzFFJBOJWgFzUPyD RzFw== X-Gm-Message-State: AOAM533ZzXLhjKwB2/8Oi5mBXX+1kWqEumCL5VkvjJq2xnMrO6aVqisv 2ULNuxuP0t7yHnsYJWvB+fNu0o2wn6XHWeKRgBkIyUG6g0SngTnfCVVKoKl2opLslVonKFX722c 5QsN6hdKbDtYzwIgE X-Received: by 2002:a7b:c30c:: with SMTP id k12mr12535231wmj.38.1634127481366; Wed, 13 Oct 2021 05:18:01 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwFEzPqFQ+1qHznC4euH1QtbfXrvr/+t46tCqHwjpC6aqk2B2gJ30j5Cm2I+Hz0oA4zGN44UQ== X-Received: by 2002:a7b:c30c:: with SMTP id k12mr12535146wmj.38.1634127481076; Wed, 13 Oct 2021 05:18:01 -0700 (PDT) Received: from redhat.com ([2.55.30.112]) by smtp.gmail.com with ESMTPSA id z1sm4104369wrt.94.2021.10.13.05.17.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Oct 2021 05:18:00 -0700 (PDT) Date: Wed, 13 Oct 2021 08:17:49 -0400 From: "Michael S. Tsirkin" To: David Hildenbrand Cc: linux-kernel@vger.kernel.org, Jeff Dike , Richard Weinberger , Anton Ivanov , Jason Wang , Paolo Bonzini , Stefan Hajnoczi , Jens Axboe , Marcel Holtmann , Johan Hedberg , Luiz Augusto von Dentz , Matt Mackall , Herbert Xu , Amit Shah , Arnd Bergmann , Greg Kroah-Hartman , Gonglei , "David S. Miller" , Sudeep Holla , Cristian Marussi , "Enrico Weigelt, metux IT consult" , Viresh Kumar , Linus Walleij , Bartosz Golaszewski , David Airlie , Gerd Hoffmann , Daniel Vetter , Jie Deng , Jean-Philippe Brucker , Joerg Roedel , Will Deacon , Jakub Kicinski , Johannes Berg , Kalle Valo , Dan Williams , Vishal Verma , Dave Jiang , Ira Weiny , Ohad Ben-Cohen , Bjorn Andersson , Mathieu Poirier , "James E.J. Bottomley" , "Martin K. Petersen" , Vivek Goyal , Miklos Szeredi , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Stefano Garzarella , Anton Yakovlev , Jaroslav Kysela , Takashi Iwai , linux-um@lists.infradead.org, virtualization@lists.linux-foundation.org, linux-block@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-i2c@vger.kernel.org, iommu@lists.linux-foundation.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, nvdimm@lists.linux.dev, linux-remoteproc@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fsdevel@vger.kernel.org, v9fs-developer@lists.sourceforge.net, kvm@vger.kernel.org, alsa-devel@alsa-project.org Subject: Re: [PATCH RFC] virtio: wrap config->reset calls Message-ID: <20211013081632-mutt-send-email-mst@kernel.org> References: <20211013105226.20225-1-mst@redhat.com> <2060bd96-5884-a1b5-9f29-7fe670dc088d@redhat.com> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: <2060bd96-5884-a1b5-9f29-7fe670dc088d@redhat.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mst@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Wed, Oct 13, 2021 at 01:03:46PM +0200, David Hildenbrand wrote: > On 13.10.21 12:55, Michael S. Tsirkin wrote: > > This will enable cleanups down the road. > > The idea is to disable cbs, then add "flush_queued_cbs" callback > > as a parameter, this way drivers can flush any work > > queued after callbacks have been disabled. > > > > Signed-off-by: Michael S. Tsirkin > > --- > > arch/um/drivers/virt-pci.c | 2 +- > > drivers/block/virtio_blk.c | 4 ++-- > > drivers/bluetooth/virtio_bt.c | 2 +- > > drivers/char/hw_random/virtio-rng.c | 2 +- > > drivers/char/virtio_console.c | 4 ++-- > > drivers/crypto/virtio/virtio_crypto_core.c | 8 ++++---- > > drivers/firmware/arm_scmi/virtio.c | 2 +- > > drivers/gpio/gpio-virtio.c | 2 +- > > drivers/gpu/drm/virtio/virtgpu_kms.c | 2 +- > > drivers/i2c/busses/i2c-virtio.c | 2 +- > > drivers/iommu/virtio-iommu.c | 2 +- > > drivers/net/caif/caif_virtio.c | 2 +- > > drivers/net/virtio_net.c | 4 ++-- > > drivers/net/wireless/mac80211_hwsim.c | 2 +- > > drivers/nvdimm/virtio_pmem.c | 2 +- > > drivers/rpmsg/virtio_rpmsg_bus.c | 2 +- > > drivers/scsi/virtio_scsi.c | 2 +- > > drivers/virtio/virtio.c | 5 +++++ > > drivers/virtio/virtio_balloon.c | 2 +- > > drivers/virtio/virtio_input.c | 2 +- > > drivers/virtio/virtio_mem.c | 2 +- > > fs/fuse/virtio_fs.c | 4 ++-- > > include/linux/virtio.h | 1 + > > net/9p/trans_virtio.c | 2 +- > > net/vmw_vsock/virtio_transport.c | 4 ++-- > > sound/virtio/virtio_card.c | 4 ++-- > > 26 files changed, 39 insertions(+), 33 deletions(-) > > > > diff --git a/arch/um/drivers/virt-pci.c b/arch/um/drivers/virt-pci.c > > index c08066633023..22c4d87c9c15 100644 > > --- a/arch/um/drivers/virt-pci.c > > +++ b/arch/um/drivers/virt-pci.c > > @@ -616,7 +616,7 @@ static void um_pci_virtio_remove(struct virtio_device *vdev) > > int i; > > /* Stop all virtqueues */ > > - vdev->config->reset(vdev); > > + virtio_reset_device(vdev); > > vdev->config->del_vqs(vdev); > > Nit: virtio_device_reset()? > > Because I see: > > int virtio_device_freeze(struct virtio_device *dev); > int virtio_device_restore(struct virtio_device *dev); > void virtio_device_ready(struct virtio_device *dev) > > But well, there is: > void virtio_break_device(struct virtio_device *dev); Exactly. I don't know what's best, so I opted for plain english :) > -- > Thanks, > > David / dhildenb