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d="scan'208";a="6598310" To: Jan Beulich , Paul Durrant References: <20191001151159.861-1-paul.durrant@citrix.com> <2857a023-87ed-8220-7b22-51f1048f9de6@suse.com> From: Andrew Cooper Openpgp: preference=signencrypt Autocrypt: addr=andrew.cooper3@citrix.com; prefer-encrypt=mutual; keydata= mQINBFLhNn8BEADVhE+Hb8i0GV6mihnnr/uiQQdPF8kUoFzCOPXkf7jQ5sLYeJa0cQi6Penp VtiFYznTairnVsN5J+ujSTIb+OlMSJUWV4opS7WVNnxHbFTPYZVQ3erv7NKc2iVizCRZ2Kxn srM1oPXWRic8BIAdYOKOloF2300SL/bIpeD+x7h3w9B/qez7nOin5NzkxgFoaUeIal12pXSR Q354FKFoy6Vh96gc4VRqte3jw8mPuJQpfws+Pb+swvSf/i1q1+1I4jsRQQh2m6OTADHIqg2E ofTYAEh7R5HfPx0EXoEDMdRjOeKn8+vvkAwhviWXTHlG3R1QkbE5M/oywnZ83udJmi+lxjJ5 YhQ5IzomvJ16H0Bq+TLyVLO/VRksp1VR9HxCzItLNCS8PdpYYz5TC204ViycobYU65WMpzWe LFAGn8jSS25XIpqv0Y9k87dLbctKKA14Ifw2kq5OIVu2FuX+3i446JOa2vpCI9GcjCzi3oHV e00bzYiHMIl0FICrNJU0Kjho8pdo0m2uxkn6SYEpogAy9pnatUlO+erL4LqFUO7GXSdBRbw5 gNt25XTLdSFuZtMxkY3tq8MFss5QnjhehCVPEpE6y9ZjI4XB8ad1G4oBHVGK5LMsvg22PfMJ ISWFSHoF/B5+lHkCKWkFxZ0gZn33ju5n6/FOdEx4B8cMJt+cWwARAQABtClBbmRyZXcgQ29v cGVyIDxhbmRyZXcuY29vcGVyM0BjaXRyaXguY29tPokCOgQTAQgAJAIbAwULCQgHAwUVCgkI CwUWAgMBAAIeAQIXgAUCWKD95wIZAQAKCRBlw/kGpdefoHbdD/9AIoR3k6fKl+RFiFpyAhvO 59ttDFI7nIAnlYngev2XUR3acFElJATHSDO0ju+hqWqAb8kVijXLops0gOfqt3VPZq9cuHlh IMDquatGLzAadfFx2eQYIYT+FYuMoPZy/aTUazmJIDVxP7L383grjIkn+7tAv+qeDfE+txL4 SAm1UHNvmdfgL2/lcmL3xRh7sub3nJilM93RWX1Pe5LBSDXO45uzCGEdst6uSlzYR/MEr+5Z JQQ32JV64zwvf/aKaagSQSQMYNX9JFgfZ3TKWC1KJQbX5ssoX/5hNLqxMcZV3TN7kU8I3kjK mPec9+1nECOjjJSO/h4P0sBZyIUGfguwzhEeGf4sMCuSEM4xjCnwiBwftR17sr0spYcOpqET ZGcAmyYcNjy6CYadNCnfR40vhhWuCfNCBzWnUW0lFoo12wb0YnzoOLjvfD6OL3JjIUJNOmJy RCsJ5IA/Iz33RhSVRmROu+TztwuThClw63g7+hoyewv7BemKyuU6FTVhjjW+XUWmS/FzknSi dAG+insr0746cTPpSkGl3KAXeWDGJzve7/SBBfyznWCMGaf8E2P1oOdIZRxHgWj0zNr1+ooF /PzgLPiCI4OMUttTlEKChgbUTQ+5o0P080JojqfXwbPAyumbaYcQNiH1/xYbJdOFSiBv9rpt TQTBLzDKXok86LkCDQRS4TZ/ARAAkgqudHsp+hd82UVkvgnlqZjzz2vyrYfz7bkPtXaGb9H4 Rfo7mQsEQavEBdWWjbga6eMnDqtu+FC+qeTGYebToxEyp2lKDSoAsvt8w82tIlP/EbmRbDVn 7bhjBlfRcFjVYw8uVDPptT0TV47vpoCVkTwcyb6OltJrvg/QzV9f07DJswuda1JH3/qvYu0p vjPnYvCq4NsqY2XSdAJ02HrdYPFtNyPEntu1n1KK+gJrstjtw7KsZ4ygXYrsm/oCBiVW/OgU g/XIlGErkrxe4vQvJyVwg6YH653YTX5hLLUEL1NS4TCo47RP+wi6y+TnuAL36UtK/uFyEuPy wwrDVcC4cIFhYSfsO0BumEI65yu7a8aHbGfq2lW251UcoU48Z27ZUUZd2Dr6O/n8poQHbaTd 6bJJSjzGGHZVbRP9UQ3lkmkmc0+XCHmj5WhwNNYjgbbmML7y0fsJT5RgvefAIFfHBg7fTY/i kBEimoUsTEQz+N4hbKwo1hULfVxDJStE4sbPhjbsPCrlXf6W9CxSyQ0qmZ2bXsLQYRj2xqd1 bpA+1o1j2N4/au1R/uSiUFjewJdT/LX1EklKDcQwpk06Af/N7VZtSfEJeRV04unbsKVXWZAk uAJyDDKN99ziC0Wz5kcPyVD1HNf8bgaqGDzrv3TfYjwqayRFcMf7xJaL9xXedMcAEQEAAYkC HwQYAQgACQUCUuE2fwIbDAAKCRBlw/kGpdefoG4XEACD1Qf/er8EA7g23HMxYWd3FXHThrVQ HgiGdk5Yh632vjOm9L4sd/GCEACVQKjsu98e8o3ysitFlznEns5EAAXEbITrgKWXDDUWGYxd pnjj2u+GkVdsOAGk0kxczX6s+VRBhpbBI2PWnOsRJgU2n10PZ3mZD4Xu9kU2IXYmuW+e5KCA vTArRUdCrAtIa1k01sPipPPw6dfxx2e5asy21YOytzxuWFfJTGnVxZZSCyLUO83sh6OZhJkk b9rxL9wPmpN/t2IPaEKoAc0FTQZS36wAMOXkBh24PQ9gaLJvfPKpNzGD8XWR5HHF0NLIJhgg 4ZlEXQ2fVp3XrtocHqhu4UZR4koCijgB8sB7Tb0GCpwK+C4UePdFLfhKyRdSXuvY3AHJd4CP 4JzW0Bzq/WXY3XMOzUTYApGQpnUpdOmuQSfpV9MQO+/jo7r6yPbxT7CwRS5dcQPzUiuHLK9i nvjREdh84qycnx0/6dDroYhp0DFv4udxuAvt1h4wGwTPRQZerSm4xaYegEFusyhbZrI0U9tJ B8WrhBLXDiYlyJT6zOV2yZFuW47VrLsjYnHwn27hmxTC/7tvG3euCklmkn9Sl9IAKFu29RSo d5bD8kMSCYsTqtTfT6W4A3qHGvIDta3ptLYpIAOD2sY3GYq2nf3Bbzx81wZK14JdDDHUX2Rs 6+ahAA== Message-ID: <9ee3496a-66c6-f031-ca51-9dbe19bc5ead@citrix.com> Date: Wed, 2 Oct 2019 10:10:01 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <2857a023-87ed-8220-7b22-51f1048f9de6@suse.com> Content-Language: en-GB X-ClientProxiedBy: AMSPEX02CAS01.citrite.net (10.69.22.112) To AMSPEX02CL02.citrite.net (10.69.22.126) Subject: Re: [Xen-devel] [PATCH-for-4.13 v2] x86/mm: don't needlessly veto migration X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: George Dunlap , xen-devel@lists.xenproject.org, Juergen Gross , Wei Liu , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMDIvMTAvMjAxOSAwOTo0MCwgSmFuIEJldWxpY2ggd3JvdGU6Cj4gT24gMDEuMTAuMjAxOSAx NzoxMSwgUGF1bCBEdXJyYW50IHdyb3RlOgo+PiBOb3cgdGhhdCB4bC5jZmcgaGFzIGFuIG9wdGlv biB0byBleHBsaWNpdGx5IGVuYWJsZSBJT01NVSBtYXBwaW5ncyBmb3IgYQo+PiBkb21haW4sIG1p Z3JhdGlvbiBtYXkgYmUgbmVlZGxlc3NseSB2ZXRvZWQgZHVlIHRvIHRoZSBjaGVjayBvZgo+PiBp c19pb21tdV9lbmFibGVkKCkgaW4gcGFnaW5nX2xvZ19kaXJ0eV9lbmFibGUoKS4KPj4gVGhlcmUg aXMgYWN0dWFsbHkgbm8gbmVlZCB0byBwcmV2ZW50IGxvZ2RpcnR5IGZyb20gYmVpbmcgZW5hYmxl ZCB1bmxlc3MKPj4gZGV2aWNlcyBhcmUgYXNzaWduZWQgdG8gYSBkb21haW4gYW5kIHRoYXQgZG9t YWluIGlzIHNoYXJpbmcgSEFQIG1hcHBpbmdzCj4+IHdpdGggdGhlIElPTU1VIChpbiB3aGljaCBj YXNlIGRpc2FibGluZyB3cml0ZSBwZXJtaXNzaW9ucyBpbiB0aGUgUDJNIG1heQo+PiBjYXVzZSBE TUEgZmF1bHRzKS4gSXQgaXMgcXVpdGUgcG9zc2libGUgdGhhdCBzb21lIGFzc2lnbmVkIGRldmlj ZXMgbWF5Cj4+IHByb3ZpZGUgaW5mb3JtYXRpb24gYWJvdXQgd2hpY2ggcGFnZXMgbWF5IGhhdmUg YmVlbiBkaXJ0aWVkIGJ5IERNQSB2aWEKPj4gYW4gQVBJIGV4cG9ydGVkIGJ5IHRoZWlyIG1hbmFn aW5nIGVtdWxhdG9yLiBUaHVzIFhlbidzIGxvZ2RpcnR5IG1hcCBpcyBvbmx5Cj4+IG9uZSBzb3Vy Y2Ugb2YgaW5mb3JtYXRpb24gdGhhdCBtYXkgYmUgYXZhaWxhYmxlIHRvIHRoZSB0b29sc3RhY2sg d2hlbgo+PiBwZXJmb3JtaW5nIGEgbWlncmF0aW9uIGFuZCBoZW5jZSBpdCBpcyB0aGUgdG9vbHN0 YWNrIHRoYXQgaXMgYmVzdCBwbGFjZWQKPj4gdG8gZGVjaWRlIHVuZGVyIHdoYXQgY2lyY3Vtc3Rh bmNlcyBpdCBjYW4gYmUgcGVyZm9ybWVkLCBub3QgdGhlIGh5cGVydmlzb3IuCj4gV2hpbGUgSSdt IGhhcHB5IGFib3V0IHRoZSBleHRlbmRlZCBkZXNjcmlwdGlvbiwgaXQncyBzdGlsbCB3cml0dGVu IGluCj4gYSB3YXkgc3VnZ2VzdGluZyB0aGF0IHRoaXMgaXMgdGhlIG9ubHkgcG9zc2libGUgd2F5 IG9mIHZpZXdpbmcgdGhpbmdzLgo+IEFzIGV4cHJlc3NlZCBieSBHZW9yZ2UgYW5kIG1lLCBwdXR0 aW5nIHRoZSBoeXBlcnZpc29yIGluIGEgcG9zaXRpb24gdG8KPiBiZSBhYmxlIHRvIGp1ZGdlIGlz IGF0IGxlYXN0IGFuIGFsdGVybmF0aXZlIHdvcnRoIGNvbnNpZGVyaW5nLgoKTm8sIGZvciBleGFj dGx5IHRoZSBzYW1lIHJlYXNvbiBhcyBJJ20gcHVyZ2luZyB0aGUgZGlzYWJsZV9taWdyYXRlIGZs YWcuCgpUaGlzIGlzIHRvdGFsbHkgYmFja3dhcmRzIHRoaW5raW5nLCBiZWNhdXNlIHRoZSBjaGVj ayBpcyBpbiB0aGUgd3JvbmcgcGxhY2UuCgpUaGVyZSByZWFsbHkgYXJlIGNhc2VzIHdoZXJlIHRo ZSB0b29sc3RhY2ssICphbmQgb25seSogdGhlIHRvb2xzdGFjayBpcwppbiBhIHBvc2l0aW9uIHRv IGRldGVybWluZSBtaWdyYXRpb24gc2FmZXR5LsKgIFdoZW4gaXQgY29tZXMgdG8KZGlzYWJsZV9t aWdyYXRlLCB0aGUgYXJlYSB1bmRlciBhcmd1bWVudCBpcyB0aGUgSVRTQyBmbGFnLCB3aGljaCAq aXMqCnNhZmUgdG8gb2ZmZXIgb24gbWlncmF0ZSBmb3IgdmlyaWRpYW4gZ3Vlc3RzIHdoaWNoIGFy ZSBrbm93biB0byB1c2UKcmVmZXJlbmNlX3RzYywgb3IgaWYgdGhlIGRlc3RpbmF0aW9uIGhhcmR3 YXJlIHN1cHBvcnRzIHRzYyBzY2FsaW5nLsKgCihIaWxhcmlvdXNseSwgbm90aGluZywgbm90IGV2 ZW4gdGhlIHRvb2xzdGFjaywgcHJvaGliaXRzIG1pZ3JhdGlvbiBiYXNlZApvbiBYZW4ncyBuby1t aWdyYXRlIGZsYWcsIGJlY2F1c2UgaXRzIGEgd3JpdGUtb25seSBmaWVsZCB3aGljaCBjYW4ndCBi ZQpyZXRyaWV2ZWQgYnkgdGhlIHRvb2xzLikKClRoZSB0d28gb3B0aW9ucyBhcmU6CgoxKSBOZXcg aHlwZXJjYWxsLApET01DVExfdGhlX3Rvb2xzdGFja19rbm93c193dGZfaXRzX2RvaW5nX3NvX2xl dF90aGVfZG9pbWFpbl9taWdyYXRlLAp3aGljaCBkaXNhYmxlcyB0aGUgdmV0b3MsCgpvcgoKMikg RGVsZXRlIHRoZSBlcnJvbmVvdXMgdmV0b3MsIGFuZCB0cnVzdCB0aGF0IHRoZSB0b29sc3RhY2sg a25vd3Mgd2hhdAppdCBpcyBkb2luZywgYW5kIHdpbGwgb25seSBpbml0aWF0ZSBhIG1pZ3JhdGUg aW4gc2FmZSBzaXR1YXRpb25zLgoKT3B0aW9uIDIgaGFzIHRoZSBzYWZldHkgY2hlY2tzIHBlcmZv bWVkIGF0IHRoZSBsZXZlbCB3aGljaCBpcyBhY3R1YWxseQpjYXBhYmxlIG9mIGNhbGN1bGF0aW5n IHRoZSByZXN1bHRzIGNvcnJlY3RseS4KCk9uZSBvZiB0aGVzZSBvcHRpb25zIGlzIHN1YnN0YW50 aWFsbHkgbGVzcyBib25lLWhlYWRlZCB0aGFuIHRoZSBvdGhlci4KCn5BbmRyZXcKCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5n IGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJv amVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw=