From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io0-f172.google.com (mail-io0-f172.google.com [209.85.223.172]) by kanga.kvack.org (Postfix) with ESMTP id BB5B86B0255 for ; Tue, 8 Sep 2015 10:44:54 -0400 (EDT) Received: by ioiz6 with SMTP id z6so120337213ioi.2 for ; Tue, 08 Sep 2015 07:44:54 -0700 (PDT) Received: from COL004-OMC2S6.hotmail.com (col004-omc2s6.hotmail.com. [65.55.34.80]) by mx.google.com with ESMTPS id hm3si5877269pdb.152.2015.09.08.07.44.53 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 08 Sep 2015 07:44:54 -0700 (PDT) Message-ID: From: Chen Gang Subject: Re: [PATCH] mm/mmap.c: Only call vma_unlock_anon_vm() when failure occurs in expand_upwards() and expand_downwards() Date: Tue, 8 Sep 2015 22:44:52 +0800 In-Reply-To: <55EEF4B4.5010205@hotmail.com> References: <55E5AD17.6060901@hotmail.com> <55E96E01.5010605@hotmail.com> <55EAC021.3080205@hotmail.com> <20150907072418.GA6022@dhcp22.suse.cz>,<55EEF4B4.5010205@hotmail.com> Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: Andrew Morton , Linux Memory , kernel mailing list , Max Filippov T24gOS83LzE1IDE1OjI0LCBNaWNoYWwgSG9ja28gd3JvdGU6Cj4gT24gU2F0IDA1LTA5LTE1IDE4 OjExOjQwLCBDaGVuIEdhbmcgd3JvdGU6Cj4+IEhlbGxvIEFsbDoKPj4KPj4gSSBoYXZlIHNlbmQg MiBuZXcgcGF0Y2hlcyBhYm91dCBtbSwgYW5kIDEgcGF0Y2ggZm9yIGFyY2ggbWV0YWcgdmlhIG15 Cj4+IDIxY24gbWFpbC4gQ291bGQgYW55IG1lbWJlcnMgaGVscCB0byB0ZWxsIG1lLCB3aGV0aGVy IGhlL3NoZSBoYXZlCj4+IHJlY2VpdmVkIHRoZSBwYXRjaGVzIG9yIG5vdD8KPgo+IFllcyB0aGV5 IHNlZW0gdG8gYmUgaW4gdGhlIGFyY2hpdmUuCj4gaHR0cDovL2xrbWwua2VybmVsLm9yZy9yL0NP TDEzMC1XNjRBNjU1NTIyMkY4Q0VEQTUxMzE3MUI5NTYwJTQwcGh4LmdibAo+IGh0dHA6Ly9sa21s Lmtlcm5lbC5vcmcvci9DT0wxMzAtVzE2Qzk3MkIwNDU3RDVDN0M5Q0IwNkI5NTYwJTQwcGh4Lmdi bAo+Cj4gWW91IGNhbiBjaGVjayB0aGF0IGVhc2lseSBieSBodHRwOi8vbGttbC5rZXJuZWwub3Jn L3IvJE1FU1NBR0VfSUQKPgoKVGhhbmsgeW91IHZlcnkgbXVjaCBmb3IgeW91ciByZXBseS4gOi0p CgoKRXhjdXNlIG1lLCBJIGNhbiBub3Qgb3BlbiBodHRwOi8vbGttbC5rZXJuZWwub3JnL3IvLi4u LCBidXQgSSBjYW4gb3BlbgpodHRwczovL2xrbWwub3JnL2xrbWwvMjAxNS85LzMgKG9yIGFub3Ro ZXIgZGF0ZSkuIFVuZGVyIHRoaXMgd2ViIHNpdGUsCkkgY2FuIG5vdCBmaW5kIGFueSBwYXRjaGVz IHdoaWNoIEkgc2VudCAoSSBzZW50IHRoZW0gaW4gMjAxNS0wOS0wMy8wNCkuCgpJbiAyMDE1LTA5 LTA1LCBhIHFlbXUgbWVtYmVyIHRvbGQgbWUgdG8gY2hlY2sgdGhlIHBhdGNoZXMgb24gd2Vic2l0 ZSwgc28KSSBjb3VsZCBrbm93IG15c2VsZiB3aGV0aGVyIHBhdGNoZXMgYXJlIGFjdHVhbGx5IHNl bnQgKEkgbWV0IGFsbW9zdCB0aGUKc2FtZSBpc3N1ZSBmb3IgcWVtdSwgc28gSSBjb25zdWx0IHRo ZW0sIHRvbykuIFNvIGZvdW5kIGh0dHBzOi8vbGttbC5vcmcKClNvIEkgc2VudCBrZXJuZWwgcGF0 Y2hlcyBhZ2FpbiB3aXRoIHRoZSBhdHRhY2htZW50cyB2aWEgbXkgaG90bWFpbCBpbiAyMAoxNS0w OS0wNS8wNi4gSSBndWVzcywgdGhlIHBhdGNoZXMgeW91IHNhdyBhcmUgc2VudCB2aWEgbXkgaG90 bWFpbCBpbiAyMDEKNS0wOS0wNS8wNi4gUGxlYXNlIGhlbHAgY2hlY2ssIGFnYWluLCB0aGFua3Mu CgoKVGhhbmtzLgotLQpDaGVuIEdhbmcgKLPCuNUpCgpPcGVuLCBzaGFyZSwgYW5kIGF0dGl0dWRl IGxpa2UgYWlyLCB3YXRlciwgYW5kIGxpZmUgd2hpY2ggR29kIGJsZXNzZWQKIAkJIAkgICAJCSAg -- 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