From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx199.postini.com [74.125.245.199]) by kanga.kvack.org (Postfix) with SMTP id 8CF306B0031 for ; Fri, 13 Sep 2013 02:52:50 -0400 (EDT) Date: Fri, 13 Sep 2013 14:52:48 +0800 Reply-To: dhillf@sina.com From: "Hillf Danton" Subject: Re: [RFC PATCH] ANB(Automatic NUMA Balancing): erase mm footprint of migrated page MIME-Version: 1.0 Content-Type: text/plain; charset=GBK Content-Transfer-Encoding: base64 Message-Id: <20130913065248.7FB62428001@webmail.sinamail.sina.com.cn> Sender: owner-linux-mm@kvack.org List-ID: To: Rik van Riel Cc: Mel Gorman , Andrea Arcangeli , linux-mm , linux-kernel , Hillf Danton SGVsbG8gUmlrDQoNCk9uIEZyaSwgU2VwIDEzLCAyMDEzIGF0IDk6NDEgQU0sIFJpayB2YW4gUmll bCA8cmllbEByZWRoYXQuY29tPiB3cm90ZToNCj4gT24gMDkvMTIvMjAxMyAwODo0NSBQTSwgSGls bGYgRGFudG9uIHdyb3RlOg0KPj4gSWYgYSBwYWdlIG1vbml0b3JlZCBieSBBTkIgaXMgbWlncmF0 ZWQsIGl0cyBmb290cHJpbnQgc2hvdWxkIGJlIGVyYXNlZCBmcm9tDQo+PiBudW1hLWhpbnQtZmF1 bHQgYWNjb3VudCwgYmVjYXVzZSBpdCBpcyBubyBsb25nZXIgdXNlZC4gT3IgdHdvIHBhZ2VzLCB0 aGUNCj4+IG1pZ3JhdGVkIHBhZ2UgYW5kIGl0cyB0YXJnZXQgcGFnZSwgYXJlIHVzZWQgaW4gdGhl IHZpZXcgb2YgdGFzayBwbGFjZW1lbnQuDQo+Pg0KPj4NCj4+IFNpZ25lZC1vZmYtYnk6IEhpbGxm IERhbnRvbiA8ZGhpbGxmQGdtYWlsLmNvbT4NCj4NCj4gTkFLDQo+DQo+IFRoZSBudW1hIGZhdWx0 cyBidWZmZXIgY29udGFpbnMgdGhlIG51bWJlciBvZiBwYWdlcyBvbiBlYWNoDQo+IG5vZGUgdGhh dCB0aGUgdGFzayByZWNlbnRseSBmYXVsdGVkIG9uLg0KPg0KPiBJZiB0aGUgcGFnZSBnb3QgbWln cmF0ZWQsIGl0IGlzIG9ubHkgY291bnRlZCBvbiB0aGUgbmV3IG5vZGUsDQo+IG5vdCBvbiB0aGUg b2xkIG9uZS4gVGhhdCBtZWFucyB0aGVyZSBpcyBubyBuZWVkIHRvIHN1YnRyYWN0DQo+IGl0IG9u IHRoZSBvbGQgbm9kZS4NCj4NClllcywgSSBjdXQgYXQgd3JvbmcgcGxhY2UuDQoNClNpbmNlIG9s ZCBub2RlIGlzIHZhbGlkLCAgdGhlIGZvb3RwcmludCBvZiBtaWdyYXRlZCBwYWdlIGFscmVhZHkN CmRlcG9zaXRzIGluIC0+bnVtYV9mYXVsdHMsIGFuZCBjdXQgc2hvdWxkIGdvIHRoZXJlLg0KDQpU aGFua3MNCkhpbGxmDQoNCg0KLS0tIGEva2VybmVsL3NjaGVkL2ZhaXIuYwlXZWQgU2VwIDExIDE4 OjMzOjAwIDIwMTMNCisrKyBiL2tlcm5lbC9zY2hlZC9mYWlyLmMJRnJpIFNlcCAxMyAxNDoxMDoz NCAyMDEzDQpAQCAtMTU2MCw2ICsxNTYwLDIzIEBAIHZvaWQgdGFza19udW1hX2ZhdWx0KGludCBs YXN0X2NwdXBpZCwgaW4NCiAJCXAtPm51bWFfcGFnZXNfbWlncmF0ZWQgKz0gcGFnZXM7DQogDQog CXAtPm51bWFfZmF1bHRzX2J1ZmZlclt0YXNrX2ZhdWx0c19pZHgobm9kZSwgcHJpdildICs9IHBh Z2VzOw0KKw0KKwlpZiAobWlncmF0ZWQgJiYgbGFzdF9jcHVwaWQgIT0gKC0xICYgTEFTVF9DUFVQ SURfTUFTSykpIHsNCisJCS8qIEVyYXNlIGZvb3RwcmludCBvZiBtaWdyYXRlZCBwYWdlICovDQor CQlpbnQgaWR4Ow0KKw0KKwkJaWR4ID0gY3B1cGlkX3RvX2NwdShsYXN0X2NwdXBpZCk7DQorCQlp ZHggPSBjcHVfdG9fbm9kZShpZHgpOw0KKwkJaWR4ID0gdGFza19mYXVsdHNfaWR4KGlkeCwgcHJp dik7DQorDQorCQlpZiAocGFnZXMgPiAxKQ0KKwkJCXBhZ2VzID4+PSAxOw0KKw0KKwkJaWYgKHAt Pm51bWFfZmF1bHRzW2lkeF0gPj0gcGFnZXMpDQorCQkgICAgcC0+bnVtYV9mYXVsdHNbaWR4XSAt PSBwYWdlczsNCisJCWVsc2UgaWYgKHAtPm51bWFfZmF1bHRzW2lkeF0pDQorCQkJIHAtPm51bWFf ZmF1bHRzW2lkeF0gPSAwOw0KKwl9DQogfQ0KIA0KIHN0YXRpYyB2b2lkIHJlc2V0X3B0ZW51bWFf c2NhbihzdHJ1Y3QgdGFza19zdHJ1Y3QgKnApDQotLQ== -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org