From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Hansen Subject: Re: [Qemu-devel] [PATCH kernel v5 0/5] Extend virtio-balloon for fast (de)inflating & fast live migration Date: Wed, 7 Dec 2016 10:44:31 -0800 Message-ID: <3954fe69-15ac-43eb-e14b-e2bfe976be33__6720.34806707433$1481136282$gmane$org@intel.com> References: <1480495397-23225-1-git-send-email-liang.z.li@intel.com> <0b18c636-ee67-cbb4-1ba3-81a06150db76@redhat.com> <0b83db29-ebad-2a70-8d61-756d33e33a48@intel.com> <2171e091-46ee-decd-7348-772555d3a5e3@redhat.com> <20161207183817.GE28786@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20161207183817.GE28786@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Andrea Arcangeli Cc: "mhocko@suse.com" , "kvm@vger.kernel.org" , "mst@redhat.com" , "Li, Liang Z" , "linux-kernel@vger.kernel.org" , "qemu-devel@nongnu.org" , "linux-mm@kvack.org" , "kirill.shutemov@linux.intel.com" , "pbonzini@redhat.com" , "akpm@linux-foundation.org" , "virtualization@lists.linux-foundation.org" , "dgilbert@redhat.com" List-Id: virtualization@lists.linuxfoundation.org On 12/07/2016 10:38 AM, Andrea Arcangeli wrote: >> > and leaves room for the bitmap size to be encoded as well, if we decide >> > we need a bitmap in the future. > How would a bitmap ever be useful with very large page-order? Please, guys. Read the patches. *Please*. The current code doesn't even _use_ a bitmap.