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Mon, 9 Dec 2019 09:46:26 +0000 Received: from EX13D32EUC003.ant.amazon.com (10.43.164.24) by EX13D31EUB001.ant.amazon.com (10.43.166.210) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Mon, 9 Dec 2019 09:46:25 +0000 Received: from EX13D32EUC003.ant.amazon.com ([10.43.164.24]) by EX13D32EUC003.ant.amazon.com ([10.43.164.24]) with mapi id 15.00.1367.000; Mon, 9 Dec 2019 09:46:25 +0000 From: "Durrant, Paul" To: =?utf-8?B?SsO8cmdlbiBHcm/Dnw==?= , "Park, Seongjae" , "axboe@kernel.dk" , "konrad.wilk@oracle.com" , "roger.pau@citrix.com" Thread-Topic: [PATCH v3 0/1] xen/blkback: Squeeze page pools if a memory pressure Thread-Index: AQHVrm7tNfXN4zMxAE2n5qoiVkODNaexjBwAgAABEcA= Date: Mon, 9 Dec 2019 09:46:25 +0000 Message-ID: <026ba79524da43648371e5bca437a5e4@EX13D32EUC003.ant.amazon.com> References: <20191209085839.21215-1-sjpark@amazon.com> <954f7beb-9d40-253e-260b-4750809bf808@suse.com> In-Reply-To: <954f7beb-9d40-253e-260b-4750809bf808@suse.com> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.43.164.211] MIME-Version: 1.0 Precedence: Bulk Subject: Re: [Xen-devel] [PATCH v3 0/1] xen/blkback: Squeeze page pools if a memory pressure X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: "linux-block@vger.kernel.org" , "sj38.park@gmail.com" , "linux-kernel@vger.kernel.org" , "xen-devel@lists.xenproject.org" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" PiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQ0KPiBGcm9tOiBKw7xyZ2VuIEdyb8OfIDxqZ3Jv c3NAc3VzZS5jb20+DQo+IFNlbnQ6IDA5IERlY2VtYmVyIDIwMTkgMDk6MzkNCj4gVG86IFBhcmss IFNlb25namFlIDxzanBhcmtAYW1hem9uLmNvbT47IGF4Ym9lQGtlcm5lbC5kazsNCj4ga29ucmFk LndpbGtAb3JhY2xlLmNvbTsgcm9nZXIucGF1QGNpdHJpeC5jb20NCj4gQ2M6IGxpbnV4LWJsb2Nr QHZnZXIua2VybmVsLm9yZzsgbGludXgta2VybmVsQHZnZXIua2VybmVsLm9yZzsgRHVycmFudCwN Cj4gUGF1bCA8cGR1cnJhbnRAYW1hem9uLmNvbT47IHNqMzgucGFya0BnbWFpbC5jb207IHhlbi0N Cj4gZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcNCj4gU3ViamVjdDogUmU6IFtQQVRDSCB2MyAw LzFdIHhlbi9ibGtiYWNrOiBTcXVlZXplIHBhZ2UgcG9vbHMgaWYgYSBtZW1vcnkNCj4gcHJlc3N1 cmUNCj4gDQo+IE9uIDA5LjEyLjE5IDA5OjU4LCBTZW9uZ0phZSBQYXJrIHdyb3RlOg0KPiA+IEVh Y2ggYGJsa2lmYCBoYXMgYSBmcmVlIHBhZ2VzIHBvb2wgZm9yIHRoZSBncmFudCBtYXBwaW5nLiAg VGhlIHNpemUgb2YNCj4gPiB0aGUgcG9vbCBzdGFydHMgZnJvbSB6ZXJvIGFuZCBiZSBpbmNyZWFz ZWQgb24gZGVtYW5kIHdoaWxlIHByb2Nlc3NpbmcNCj4gPiB0aGUgSS9PIHJlcXVlc3RzLiAgSWYg Y3VycmVudCBJL08gcmVxdWVzdHMgaGFuZGxpbmcgaXMgZmluaXNoZWQgb3IgMTAwDQo+ID4gbWls bGlzZWNvbmRzIGhhcyBwYXNzZWQgc2luY2UgbGFzdCBJL08gcmVxdWVzdHMgaGFuZGxpbmcsIGl0 IGNoZWNrcyBhbmQNCj4gPiBzaHJpbmtzIHRoZSBwb29sIHRvIG5vdCBleGNlZWQgdGhlIHNpemUg bGltaXQsIGBtYXhfYnVmZmVyX3BhZ2VzYC4NCj4gPg0KPiA+IFRoZXJlZm9yZSwgYGJsa2Zyb250 YCBydW5uaW5nIGd1ZXN0cyBjYW4gY2F1c2UgYSBtZW1vcnkgcHJlc3N1cmUgaW4gdGhlDQo+ID4g YGJsa2JhY2tgIHJ1bm5pbmcgZ3Vlc3QgYnkgYXR0YWNoaW5nIGEgbGFyZ2UgbnVtYmVyIG9mIGJs b2NrIGRldmljZXMgYW5kDQo+ID4gaW5kdWNpbmcgSS9PLg0KPiANCj4gSSdtIGhhdmluZyBwcm9i bGVtcyB0byB1bmRlcnN0YW5kIGhvdyBhIGd1ZXN0IGNhbiBhdHRhY2ggYSBsYXJnZSBudW1iZXIN Cj4gb2YgYmxvY2sgZGV2aWNlcyB3aXRob3V0IHRob3NlIGhhdmluZyBiZWVuIGNvbmZpZ3VyZWQg YnkgdGhlIGhvc3QgYWRtaW4NCj4gYmVmb3JlLg0KPiANCj4gSWYgdGhvc2UgZGV2aWNlcyBoYXZl IGJlZW4gY29uZmlndXJlZCwgZG9tMCBzaG91bGQgYmUgcmVhZHkgZm9yIHRoYXQNCj4gbnVtYmVy IG9mIGRldmljZXMsIGUuZy4gYnkgaGF2aW5nIGVub3VnaCBzcGFyZSBtZW1vcnkgYXJlYSBmb3Ig YmFsbG9vbmVkDQo+IHBhZ2VzLg0KPiANCj4gU28gZWl0aGVyIEknbSBtaXNzaW5nIHNvbWV0aGlu ZyBoZXJlIG9yIHlvdXIgcmVhc29uaW5nIGZvciB0aGUgbmVlZCBvZg0KPiB0aGUgcGF0Y2ggaXMg d3JvbmcuDQo+IA0KDQpJIHRoaW5rIHRoZSB1bmRlcmx5aW5nIGlzc3VlIGlzIHRoYXQgcGVyc2lz dGVudCBncmFudCBzdXBwb3J0IGlzIGhvZ2dpbmcgbWVtb3J5IGluIHRoZSBiYWNrZW5kcywgdGhl cmVieSBjb21wcm9taXNpbmcgc2NhbGFiaWxpdHkuIElJVUMgdGhpcyBwYXRjaCBpcyBlc3NlbnRp YWxseSBhIGJhbmQtYWlkIHRvIGdldCBiYWNrIHRvIHRoZSBzY2FsYWJpbGl0eSB0aGF0IHdhcyBw b3NzaWJsZSBiZWZvcmUgcGVyc2lzdGVudCBncmFudCBzdXBwb3J0IHdhcyBhZGRlZC4gVWx0aW1h dGVseSB0aGUgcmlnaHQgYW5zd2VyIHNob3VsZCBiZSB0byBnZXQgcmlkIG9mIHBlcnNpc3RlbnQg Z3JhbnRzIHN1cHBvcnQgYW5kIHVzZSBncmFudCBjb3B5LCBidXQgc3VjaCBhIGNoYW5nZSBpcyBj bGVhcmx5IG1vcmUgaW52YXNpdmUgYW5kIHdvdWxkIG5lZWQgZmFyIG1vcmUgdGVzdGluZy4NCg0K ICBQYXVsDQpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpY ZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRw czovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs