From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 AEBD030EF62 for ; Wed, 26 Nov 2025 06:27:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764138479; cv=none; b=LzMXBYG439lqKVxcddxkav0V31QO38MFhEsXIcBLpcdTxRbgYfpB2VCqp1h1woDMhsbANdca3AlcpmFwmBu3c5UNPNoyrPdXgMiV4tSgJcrIOtHP1R/uKtxF6CHghGPlmZT17cAPmW6S5vTCqf+rZus4zs1stkUxVmyAn65zWHk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764138479; c=relaxed/simple; bh=6GBox+U71wd52Kw2/PdLyqreoI+ktndyD42jWbX4uFI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=XweV0pHjbYtd+CeXRplli+bn214MIt1IMb5ZWjJxTPnoWiP+HizjVjyQVRVRZgYXb7qVGzKsE52+t6LWIkdBVH2udM5Vkg7gth6sd+eIN6A6lLaTpgQwO7Sr+E3BLLWui8X95CZasvWtUfXbhbQLlA65EVXyiKIw9B0I6N7d8IM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=HAdBuPRG; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b=Laspvpj3; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="HAdBuPRG"; dkim=pass (2048-bit key) header.d=redhat.com header.i=@redhat.com header.b="Laspvpj3" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1764138476; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ARxIA8tdQWb99qoXW28PLnSr1NCprmRt1PGWJHnjSzg=; b=HAdBuPRGtRSDvJKDvwR4QcR/2SVYfZjBGfoFU6KInuMlggSjOK8NP0HheSXHP4zme+PjNf iNaua2o8hIT884UarlZQFjI+auUPsAPuJ5rY3BcRPYkKh4jFb4Kc8egUbnbmtJLiYVaskT fuCG0MQKusH3H3sxpGhhceb3ZZ2UAtw= Received: from mail-wm1-f71.google.com (mail-wm1-f71.google.com [209.85.128.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-147-7LLktpd-PrWDIfmu6dQsmw-1; Wed, 26 Nov 2025 01:27:53 -0500 X-MC-Unique: 7LLktpd-PrWDIfmu6dQsmw-1 X-Mimecast-MFC-AGG-ID: 7LLktpd-PrWDIfmu6dQsmw_1764138472 Received: by mail-wm1-f71.google.com with SMTP id 5b1f17b1804b1-477563a0c75so33530245e9.1 for ; Tue, 25 Nov 2025 22:27:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=google; t=1764138472; x=1764743272; darn=vger.kernel.org; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date:from:to :cc:subject:date:message-id:reply-to; bh=ARxIA8tdQWb99qoXW28PLnSr1NCprmRt1PGWJHnjSzg=; b=Laspvpj3X2vQMlf7eONaP0uEp8iI8cEklRxi9rYME1Ke09iAyhQFbFP85DLnUbkjTb hYevtAYaQVPBAc271d9zgt64yK6LwKG9I42NrD/sQ3KRFJyiYRiYoifiS05RzMUizjiY NeIEdBz96Eksy+9fO+yvK8HhzaRpbyZ0/DGz9oPG7YPXvljKkCZeyQYDb+5yG/7tbhQu fPkjBLqEteKvW5UP5eSiAR2q6j66mMTzGPA3uva6MZVtNm7U8/ALB7Zb8nNuPG6x5HXP XMs8cql4IO3EUQYQEu57ZdGY5YiA4qv/gxM4QyGBOktjbrid4DAcHn2rd+KL3Y8djLVE tYtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764138472; x=1764743272; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ARxIA8tdQWb99qoXW28PLnSr1NCprmRt1PGWJHnjSzg=; b=atUQQxNXruikIcM6w6fyB7BZVgJ7cPt8+rNBntTCsLi1OzkJaVXtp70/hf1YWi+YHw zdrBCngT3qYoJ1bnmqhRZpCQlXexUHIVyPdD3i7UohVGTZNPUwUDsj+VDrBokWu1A+R4 snTLqS5/tDdQ74UxTxqvRo8Ev06SPvandle4VAIeQx9zVggVX7VPpbpEtfyNKwFKxn8U gItLh5M67SHqKmmHuGSTkzngA/yCjQNvHQK3MgiQkLILMWp2BKo+QSl61NxL8GmA1u6E 1DalwDe5cIDmFwuATvlGeOwllUD8ObqP+JeWk3fsrQm19jsf8gQnxWufhDKlOHSQUwUs owBg== X-Forwarded-Encrypted: i=1; AJvYcCWLC4bjlaixx/blZo5kVZUFeEzI5nnNKGgjI+vtAdgQTqKx/EmefMKCFV3RLBr2fJb6PiG3jMI=@vger.kernel.org X-Gm-Message-State: AOJu0YzMwrmx3I9a+LIM+I/9IvVUYUnYbw7BPyGIINNIqQe0tU8WXlC1 CUXpjSjzIaSjanoj0QudHdhxGUWp/Q/r78xdTdvkKpHertqpaygS4D02Ff/Boa6cfc/4Rxc8bEJ pll6CbpZdm/pl4gqi5GckGtBPnpl5Ne3JW3gO3CZaehTUaT9hcZPzIka6Kg== X-Gm-Gg: ASbGncsjwPsla0tehfXuCw7k8mRg3P9FUg/ORpTG5liHSluUCGT8ofgAqFz5q8g96r1 EN+Ewua6/CKiruSZJ4PgyLg/bERGCj4UM7ObSyB0y7Y05iZ8wcZvLRSV9ENxoOtCaLXUMrJhVA9 4jWZzov1/BKHvOPbpLURqmkYzWzpX2CsaBJtIzHIyIieXOZ5UHVrY3ytqFLQMYt9j6O9Y9/H3Md kqn1RfTecRaWRsZ6ZbsfnO+emNSHgdOWohIg3pgztYK3133raUo7ydIJN6xpG0kK31YjckvR3FQ hYcXCnaW7VsOMe/mWfBRtZV0CqA8F7ggTL+ShoOmaOFaDh0Sp9bC1eglWT3si/kxfoCe/rOgmvt iC1Lga9ousBKwaqiWzPEByrzxJSVunQ== X-Received: by 2002:a05:600c:4443:b0:46e:53cb:9e7f with SMTP id 5b1f17b1804b1-47904b103e2mr53915395e9.18.1764138471839; Tue, 25 Nov 2025 22:27:51 -0800 (PST) X-Google-Smtp-Source: AGHT+IF0f1u0T3jzKYGdUCWINkcBdum6zqYD5lZ2uzy8Z3cJxh7vJamCVyKXR4UerdY4GLIpXEKe5g== X-Received: by 2002:a05:600c:4443:b0:46e:53cb:9e7f with SMTP id 5b1f17b1804b1-47904b103e2mr53915225e9.18.1764138471351; Tue, 25 Nov 2025 22:27:51 -0800 (PST) Received: from redhat.com (IGLD-80-230-39-63.inter.net.il. [80.230.39.63]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4790adc601dsm26881835e9.1.2025.11.25.22.27.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Nov 2025 22:27:50 -0800 (PST) Date: Wed, 26 Nov 2025 01:27:48 -0500 From: "Michael S. Tsirkin" To: Jason Wang Cc: Jakub Kicinski , eperezma@redhat.com, kvm@vger.kernel.org, virtualization@lists.linux.dev, netdev@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH net V2] vhost: rewind next_avail_head while discarding descriptors Message-ID: <20251126012023-mutt-send-email-mst@kernel.org> References: <20251120022950.10117-1-jasowang@redhat.com> <20251125194202.49e0eec7@kernel.org> 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-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Wed, Nov 26, 2025 at 02:18:25PM +0800, Jason Wang wrote: > On Wed, Nov 26, 2025 at 11:42 AM Jakub Kicinski wrote: > > > > On Thu, 20 Nov 2025 10:29:50 +0800 Jason Wang wrote: > > > Subject: [PATCH net V2] vhost: rewind next_avail_head while discarding descriptors > > > > > drivers/vhost/net.c | 53 ++++++++++++++++++------------ > > > drivers/vhost/vhost.c | 76 +++++++++++++++++++++++++++++++++++-------- > > > drivers/vhost/vhost.h | 10 +++++- > > > > Hm, is this targeting net because Michael is not planning any more PRs > > for the 6.18 season? > > Basically because it touches vhost-net. I need inputs for which tree > we should go for this and future modifications that touch both vhost > core and vhost-net. > > Thanks > > > Well this change is mostly net, vhost changes are just moving code around. net tree gets more testing and more eyes looking at it, so it's good for such cases. -- MST