From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 1F60C31B108 for ; Wed, 14 Jan 2026 15:17:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768403851; cv=none; b=IWGCehT8/q7X6H83AetdphJRhSNsRqaNuQ+8p2546d2dzkxDxVSKDdf0N9KwDcRi3TCmOwJ59g5q0fonlDOmsFbnvYE9TJXUHDC6SoEEGrDqk1iHP13xC79DezCVHC1KY9mFnrt3aHBpYCwHUy3wan3X98Zq0SZ/Q5hxUcJeW3Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768403851; c=relaxed/simple; bh=cGkhVVGjqKZjapfrZbkJvS3W+9rk9KxRselyODaRqLU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: In-Reply-To:Content-Type:Content-Disposition; b=qOI3psSobX1V7CgK7fgEWv29ie9mQAcX123ul4MXMegv8S12xisy9uCRj0KjoNeHYUdC75HTUJLgXbo7+EDhVsGBnSWMUoTTyjS4md4VdUp9C0d1J1vkNzAuuAlS3mQYFnY/1kOV2vCjTRsYWDvZuPll8aXVayweo2voF9QXpVw= 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=dv3UIKDw; arc=none smtp.client-ip=170.10.133.124 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="dv3UIKDw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1768403848; 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=j3seQXZjw+28+mx3Tr/xlZXK2Idg9HhvWuCCmUoYFyo=; b=dv3UIKDwEA1yV2/5T65msHZw7yEGI1Vo1IUPZhEZS2MmMEe6hyKQ+NrgQF9iyqbLrp/sMn TBjABtIzYDvvtKi4H7JXHcgK8+UgJ96eM2GxZ3Z2Do32HEYvDXdH4PXN4zVQagKAJFqR+y u9bU2MK9wnspNxmdkm45XLPlwLgQGdM= Received: from mail-vs1-f71.google.com (mail-vs1-f71.google.com [209.85.217.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-586-XfPoF-OcO5u24A0ct3B3OA-1; Wed, 14 Jan 2026 10:17:27 -0500 X-MC-Unique: XfPoF-OcO5u24A0ct3B3OA-1 X-Mimecast-MFC-AGG-ID: XfPoF-OcO5u24A0ct3B3OA_1768403846 Received: by mail-vs1-f71.google.com with SMTP id ada2fe7eead31-5ec87b2b4ddso6959244137.3 for ; Wed, 14 Jan 2026 07:17:27 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1768403846; x=1769008646; h=in-reply-to: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=j3seQXZjw+28+mx3Tr/xlZXK2Idg9HhvWuCCmUoYFyo=; b=w76bBm5ohN6BdHnGgW7j2jHHmH3r0aDnlKrcJ82Zgcx5jH+kmgDx9lZKB3/FJtkJtN hKZY9G/7MMAPMDeakqb5lYMk4qv2uXbnzHcrgq6/9JXlfFClS/9O2blCZPU3OihBN+2a FZOoQnnxlbmStHg8FickSfw/tWkC0bMIfptHSrh9LW0jZvVdXjdKJID74SQ+nMrfhPoA 0Ibi2vIkf9hQ1ZgK6HJNN+ux+QmEzG5ojZGMULjG6Eah5kb5GBPx/UzN56Xzm7iJdJ/n bk5Q38aeWIwuibNtBCo+BKDKlyzUU5mRbHtqZCkgRDfeelAn68iuf7JwwRb6gtc+EqK7 nVjw== X-Forwarded-Encrypted: i=1; AJvYcCWB62np8YxcX9D3tYe4EbsGUKAoAMm0rMB5illXc64zAcYoca7AEOL90AuJRHTRcv8dCyXN/tWK4vs=@lists.linux.dev X-Gm-Message-State: AOJu0YxTcMmzoYj6ZVARm+xS/OCT6n0NFDu4MFDbQw+pEIcyRU9/EpDj FsZKW8ZswrAp6Mb0YsMIOQCeP2GEIOFiIcbONMfAFP/zt1NyLl00m5hKBwx2zp7gSKgBOyBhrZ9 sly6tGGfxZTj7reKbZrtX3nHqmF3Cm2DqUwCgNtAdkRWUXkE/Rx69MMxV+XtF7w== X-Gm-Gg: AY/fxX7iwMf3on3YZIgXhPKAT+8M+E1l884lErbd4Jbs3k8QfOCQYmoc5id3HTWckJt uyWQQs1yQW/+cCCiUBNjQIYm0IECc+1/bT2Dwms+3Q5h5BlXCBEy4xkVD7eGeng52oR7ikPdJyu mj2hPu7Sjb4gK/lxJ+SmREbewoMH9VIA+UppcXIy4yElSKXNute6XQP5hedBSfgSxq5VWLsE+xL NJUm4VbEFLNRvMGLMnueGa5iG005zBlLLboZlPVXHD/UuKxwMtBFbPkGnIyg8Htc2BB1hbdOP79 EPB+TnK47KTPIsH6ukcxqhP8ZKVXp7ezKxcm95mcj0HsEJEEiEu9y8ppNlrigQ8MPMZ8Vv9vPFS xiZc= X-Received: by 2002:a05:6102:6893:b0:5e8:1d93:921a with SMTP id ada2fe7eead31-5f1838c4bb8mr838261137.15.1768403846492; Wed, 14 Jan 2026 07:17:26 -0800 (PST) X-Received: by 2002:a05:6102:6893:b0:5e8:1d93:921a with SMTP id ada2fe7eead31-5f1838c4bb8mr838209137.15.1768403845950; Wed, 14 Jan 2026 07:17:25 -0800 (PST) Received: from x1.local ([142.188.210.156]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-890770cc7b1sm177183316d6.5.2026.01.14.07.17.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Jan 2026 07:17:25 -0800 (PST) Date: Wed, 14 Jan 2026 10:17:23 -0500 From: Peter Xu To: Vladimir Sementsov-Ogievskiy Cc: Stefan Hajnoczi , Alexandr Moshkov , qemu-devel@nongnu.org, "Gonglei (Arei)" , Zhenwei Pi , "Michael S. Tsirkin" , Stefano Garzarella , Raphael Norwitz , Kevin Wolf , Hanna Reitz , Jason Wang , Paolo Bonzini , Fam Zheng , Alex =?utf-8?Q?Benn=C3=A9e?= , mzamazal@redhat.com, Fabiano Rosas , qemu-block@nongnu.org, virtio-fs@lists.linux.dev, "yc-core@yandex-team.ru" , Eric Blake , Markus Armbruster Subject: Re: [PATCH v6 0/5] support inflight migration Message-ID: References: <20260113095813.134810-1-dtalexundeer@yandex-team.ru> <20260113181242.GB528940@fedora> <2af404d1-5e50-4caa-bee6-f8aab6a30a7e@yandex-team.ru> <832f4005-2e51-49fd-91e8-9f4cbe9f2adf@yandex-team.ru> Precedence: bulk X-Mailing-List: virtio-fs@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: <832f4005-2e51-49fd-91e8-9f4cbe9f2adf@yandex-team.ru> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: -YRkGbPbqxMk1iTqLIOmVSCe9BaIjuq7n2F6FFrhD5A_1768403846 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline On Wed, Jan 14, 2026 at 05:35:53PM +0300, Vladimir Sementsov-Ogievskiy wrote: > On 14.01.26 15:22, Peter Xu wrote: > > On Wed, Jan 14, 2026 at 09:19:10AM +0300, Vladimir Sementsov-Ogievskiy wrote: > > > On 13.01.26 21:56, Peter Xu wrote: > > > > On Tue, Jan 13, 2026 at 01:12:42PM -0500, Stefan Hajnoczi wrote: > > > > > On Tue, Jan 13, 2026 at 02:58:09PM +0500, Alexandr Moshkov wrote: > > > > > > > > > > Peter: Please review the migration aspects (especially the vmstates). > > > > > Thank you! > > > > > > > > Looks good from my side as long as it's based on VMSD, I appreciate that > > > > change from the old versions where it used to use qemufile APIs. > > > > > > > > The major question here is if this series depends on Vladimir's other > > > > series > > > > > > No, it does not. And if we can proceed with merging these series first, I'll > > > be happy to rebase on top of it. > > > > I thought it requires migrate_local_vhost_user_blk() be present? The > > inflight feature should not be enabled only if there's a hint that it's a > > local migration.. > > Oh right, I missed it. > > We discussed that Alexandr will rebase the series on master without dependency > on my RFC. The problem is IIUC the new INFLIGHT feature bit will be declared as supported to vhost-user-block after applying this series. Then if we start a remote migration (rather than local) it'll be automatically (and wrongly) enabled? AFAIU, the dependency makes sense, at least to the patch to introduce the "local" / ... capability? -- Peter Xu