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Tsirkin" , Jason Wang , =?UTF-8?q?Eugenio=20P=C3=A9rez?= , kvm@vger.kernel.org, virtualization@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 3/3] vhost/vsock: keep IOTLB across feature updates Date: Fri, 14 Aug 2026 19:56:12 +0800 Message-Id: <20260814115612.127842-2-physicalmtea@gmail.com> In-Reply-To: References: <20260814072903.124991-1-physicalmtea@gmail.com> <20260814072903.124991-4-physicalmtea@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit > Will we do the same in vhost-net? If yes, all the callers will call > vhost_init_device_iotlb() with dev.iotlb NULL, so should we remove > that behaviour and add the check we are adding here inside the > vhost_init_device_iotlb()? > > Or there is an use case where vhost_init_device_iotlb() is called with > an already initialized dev.iotlb ? I will check whether there is any valid use case for calling vhost_init_device_iotlb() with an already initialized dev->iotlb. If there is no such use case, I will move the check into vhost_init_device_iotlb() and apply the same change to vhost-net as well. Thanks, Jia