From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-f72.google.com (mail-oi0-f72.google.com [209.85.218.72]) by kanga.kvack.org (Postfix) with ESMTP id 14A706B000C for ; Thu, 26 Jul 2018 03:04:24 -0400 (EDT) Received: by mail-oi0-f72.google.com with SMTP id u11-v6so618843oif.22 for ; Thu, 26 Jul 2018 00:04:24 -0700 (PDT) Received: from mail.wingtech.com (mail.wingtech.com. [180.166.216.14]) by mx.google.com with ESMTPS id b185-v6si403248oif.189.2018.07.26.00.04.22 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 26 Jul 2018 00:04:23 -0700 (PDT) Date: Thu, 26 Jul 2018 15:03:23 +0800 From: "zhaowuyun@wingtech.com" Subject: Re: Re: [PATCH] [PATCH] mm: disable preemption before swapcache_free References: <2018072514375722198958@wingtech.com>, <20180725141643.6d9ba86a9698bc2580836618@linux-foundation.org>, <2018072610214038358990@wingtech.com>, <20180726060640.GQ28386@dhcp22.suse.cz> Mime-Version: 1.0 Message-ID: <20180726150323057627100@wingtech.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: owner-linux-mm@kvack.org List-ID: To: Michal Hocko Cc: akpm , mgorman , minchan , vinmenon , hannes , "hillf.zj" , linux-mm , linux-kernel , Hugh Dickins Pk9uIFRodSAyNi0wNy0xOCAxMDoyMTo0MCwgemhhb3d1eXVuQHdpbmd0ZWNoLmNvbSB3cm90ZToK PlsuLi5dCj4+IE91ciBwcm9qZWN0IHJlYWxseSBuZWVkcyBhIGZpeCB0byB0aGlzIGlzc3VlCj4K PkNvdWxkIHlvdSBiZSBtb3JlIHNwZWNpZmljIHdoeT8gTXkgdW5kZXJzdGFuZGluZyBpcyB0aGF0 IFJUIHRhc2tzCj51c3VhbGx5IGhhdmUgYWxsIHRoZSBtZW1vcnkgbWxvY2tlZCBvdGhlcndpc2Ug YWxsIHRoZSByZWFsIHRpbWUKPmV4cGVjdGF0aW9ucyBhcmUgZ29uZSBhbHJlYWR5Lgo+LS0KPk1p Y2hhbCBIb2Nrbwo+U1VTRSBMYWJzIAoKClRoZSBSVCB0aHJlYWQgaXMgY3JlYXRlZCBieSBhIHBy b2Nlc3Mgd2l0aCBub3JtYWwgcHJpb3JpdHksIGFuZCB0aGUgcHJvY2VzcyB3YXMgc2xlZXAsIAp0 aGVuIHNvbWUgdGFzayBuZWVkcyB0aGUgUlQgdGhyZWFkIHRvIGRvIHNvbWV0aGluZywgc28gdGhl IHByb2Nlc3MgY3JlYXRlIHRoaXMgdGhyZWFkLCBhbmQgc2V0IGl0IHRvIFJUIHBvbGljeS4KSSB0 aGluayB0aGF0IGlzIHRoZSByZWFzb24gd2h5IFJUIHRhc2sgd291bGQgcmVhZCB0aGUgc3dhcC4K CgotLS0tLS0tLS0tLS0tLQp6aGFvd3V5dW5Ad2luZ3RlY2guY29t