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[209.132.180.67]) by mx.google.com with ESMTP id a38si20722683edf.260.2019.09.16.04.51.13; Mon, 16 Sep 2019 04:51:37 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730614AbfIPLt1 (ORCPT + 99 others); Mon, 16 Sep 2019 07:49:27 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:58478 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730110AbfIPLt1 (ORCPT ); Mon, 16 Sep 2019 07:49:27 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-166-eM_ZKBYxM-CKIRdpMPgtuQ-1; Mon, 16 Sep 2019 12:49:23 +0100 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Mon, 16 Sep 2019 12:49:22 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Mon, 16 Sep 2019 12:49:22 +0100 From: David Laight To: "linux-kernel@vger.kernel.org" , "linux-tip-commits@vger.kernel.org" CC: Miles Chen , "linux-mediatek@lists.infradead.org" , "wsd_upstream@mediatek.com" , Linus Torvalds , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov Subject: RE: [tip: sched/core] sched/psi: Correct overly pessimistic size calculation Thread-Topic: [tip: sched/core] sched/psi: Correct overly pessimistic size calculation Thread-Index: AQHVaoS2xzP/Zpoyw0CDGPLgyB3STacuM1dg Date: Mon, 16 Sep 2019 11:49:22 +0000 Message-ID: References: <20190912103452.13281-1-miles.chen@mediatek.com> <156841460535.24167.6273030361884540421.tip-bot2@tip-bot2> In-Reply-To: <156841460535.24167.6273030361884540421.tip-bot2@tip-bot2> 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: [10.202.205.107] MIME-Version: 1.0 X-MC-Unique: eM_ZKBYxM-CKIRdpMPgtuQ-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogTWlsZXMgQ2hlbg0KPiBTZW50OiAxMyBTZXB0ZW1iZXIgMjAxOSAyMzo0Mw0KPiBUaGUg Zm9sbG93aW5nIGNvbW1pdCBoYXMgYmVlbiBtZXJnZWQgaW50byB0aGUgc2NoZWQvY29yZSBicmFu Y2ggb2YgdGlwOg0KPiANCj4gQ29tbWl0LUlEOiAgICAgNGFkY2RjZWE3MTdjYjJkODQzNmJlZjAw ZGQ2ODlhYTViYzc2ZjExYg0KPiBHaXR3ZWI6ICAgICAgICBodHRwczovL2dpdC5rZXJuZWwub3Jn L3RpcC80YWRjZGNlYTcxN2NiMmQ4NDM2YmVmMDBkZDY4OWFhNWJjNzZmMTFiDQo+IEF1dGhvcjog ICAgICAgIE1pbGVzIENoZW4gPG1pbGVzLmNoZW5AbWVkaWF0ZWsuY29tPg0KPiBBdXRob3JEYXRl OiAgICBUaHUsIDEyIFNlcCAyMDE5IDE4OjM0OjUyICswODowMA0KPiBDb21taXR0ZXI6ICAgICBJ bmdvIE1vbG5hciA8bWluZ29Aa2VybmVsLm9yZz4NCj4gQ29tbWl0dGVyRGF0ZTogRnJpLCAxMyBT ZXAgMjAxOSAwNzo0OToyOCArMDI6MDANCj4gDQo+IHNjaGVkL3BzaTogQ29ycmVjdCBvdmVybHkg cGVzc2ltaXN0aWMgc2l6ZSBjYWxjdWxhdGlvbg0KPiANCj4gV2hlbiBwYXNzaW5nIGEgZXF1YWwg b3IgbW9yZSB0aGVuIDMyIGJ5dGVzIGxvbmcgc3RyaW5nIHRvIHBzaV93cml0ZSgpLA0KPiBwc2lf d3JpdGUoKSBjb3BpZXMgMzEgYnl0ZXMgdG8gaXRzIGJ1ZiBhbmQgb3ZlcndyaXRlcyBidWZbMzBd DQo+IHdpdGggJ1wwJy4gV2hpY2ggbWFrZXMgdGhlIGlucHV0IHN0cmluZyAxIGJ5dGUgc2hvcnRl ciB0aGFuDQo+IGl0IHNob3VsZCBiZS4NCj4gDQo+IEZpeCBpdCBieSBjb3B5aW5nIHNpemVvZihi dWYpIGJ5dGVzIHdoZW4gbmJ5dGVzID49IHNpemVvZihidWYpLg0KPiANCj4gVGhpcyBkb2VzIG5v dCBjYXVzZSBwcm9ibGVtcyBpbiBub3JtYWwgdXNlIGNhc2UgbGlrZToNCj4gInNvbWUgNTAwMDAw IDEwMDAwMDAwIiBvciAiZnVsbCA1MDAwMDAgMTAwMDAwMDAiIGJlY2F1c2UgdGhleQ0KPiBhcmUg bGVzcyB0aGFuIDMyIGJ5dGVzIGluIGxlbmd0aC4NCj4gDQo+IAkvKiBhc3N1bWluZyBuYnl0ZXMg PT0gMzUgKi8NCj4gCWNoYXIgYnVmWzMyXTsNCj4gDQo+IAlidWZfc2l6ZSA9IG1pbihuYnl0ZXMs IChzaXplb2YoYnVmKSAtIDEpKTsgLyogYnVmX3NpemUgPSAzMSAqLw0KPiAJaWYgKGNvcHlfZnJv bV91c2VyKGJ1ZiwgdXNlcl9idWYsIGJ1Zl9zaXplKSkNCj4gCQlyZXR1cm4gLUVGQVVMVDsNCj4g DQo+IAlidWZbYnVmX3NpemUgLSAxXSA9ICdcMCc7IC8qIGJ1ZlszMF0gPSAnXDAnICovDQoNCldv dWxkbid0IGl0IGJlIGJldHRlciB0byBhbHNvIGFsbG93IHRoZSB1c2VyIHRvIHBhc3MNCmFuIHVu dGVybWluYXRlZCBzdHJpbmc/DQpTbyBsZWF2ZSB0aGUgJy0xJyBvbiB0aGUgYXNzaWdubWVudCB0 byBidWZfc2l6ZSwgYnV0IHJlbW92ZQ0KaXQgZnJvbSB0aGUgbGFzdCBsaW5lLg0KDQoJRGF2aWQN Cg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZh cm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYg KFdhbGVzKQ0K