From: Daeho Jeong Subject: Re: [PATCH] ext4: guarantee already started handles to successfully finish while ro remounting Date: Sat, 07 May 2016 13:05:50 +0000 (GMT) Message-ID: <945936769.469311462626349850.JavaMail.weblogic@ep2mlwas09a> Reply-To: daeho.jeong@samsung.com Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: base64 Cc: "jack@suse.cz" , "linux-ext4@vger.kernel.org" , =?utf-8?Q?=EC=A0=95=EB=8C=80=ED=98=B8?= , =?utf-8?Q?=EC=9D=B4=EA=B8=B0=ED=83=9C?= To: Theodore Ts'o Return-path: Received: from mailout1.samsung.com ([203.254.224.24]:40445 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751930AbcEGNFx (ORCPT ); Sat, 7 May 2016 09:05:53 -0400 Received: from epcpsbgr3.samsung.com (u143.gpu120.samsung.co.kr [203.254.230.143]) by mailout1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0O6T00Q8I5PRM450@mailout1.samsung.com> for linux-ext4@vger.kernel.org; Sat, 07 May 2016 22:05:51 +0900 (KST) MIME-version: 1.0 Sender: linux-ext4-owner@vger.kernel.org List-ID: PiBUaGUgcmVhbCBwcm9ibGVtIGhlcmUgaXMgdGhhdCB3ZSB3YW50IGVtZXJnZW5jeSB1bm1vdW50 IHRvIGJlDQo+IGNvbXBsZXRlbHkgc2FmZSwgYnV0dGluZyBNU19SRE9OTFkgcmFuZG9tbHkgaXNu J3Qgc2FmZSBhZ2FpbnN0IGZpbGUNCj4gc3lzdGVtIGNvcnJ1cHRpb24uICBUaGUgaWRlYSBpcyB5 b3UgZG8gdGhpcyBvbmx5IHdoZW4geW91IGhhdmUgbm8NCj4gb3RoZXIgY2hvaWNlLCBhbmQgdGhl IGNvbnNlcXVlbmNlcyB3b3VsZCBiZSB3b3JzZSAtLS0gYW5kIHdoZXJlIHlvdQ0KPiB3b3VsZCBi ZSBwcmVwYXJlZCB0byBkbyBhIGZpbGUgc3lzdGVtIGNvbnNpc3RlbmN5IGNoZWNrIGFmdGVyd2Fy ZHMuDQoNCj4gV2UgY2FuIGVpdGhlciBmaXggQW5kcm9pZCB1c2Vyc3BhY2UsIG9yIHdlIGNvdWxk IGFkZCBhIHBlci1maWxlIHN5c3RlbQ0KPiBjYWxsYmFjayB3aGljaCB0cmllcyAoYXMgbXVjaCBh cyBwb3NzaWJsZSkgdG8gbWFrZSBhbiBlbWVyZ2VuY3kNCj4gdW5tb3VudCBzYWZlLiAgSW4gdGhp cyBwYXJ0aWN1bGFyIGNhc2UsIGl0IHdvdWxkIHByb2JhYmx5IGludm9sdmUNCj4gc2V0dGluZyB0 aGUgImZpbGUgc3lzdGVtIGlzIGNvcnJ1cHQgZmxhZyIgdG8gZm9yY2UgYSBmaWxlIHN5c3RlbQ0K PiBjb25zaXN0ZW5jeSBjaGVjayBhdCB0aGUgbmV4dCByZWJvb3QuICBCZWNhdXNlIGlmIHlvdSB1 c2UgZW1lcmdlbmN5DQo+IHVubW91bnQsIGFsbCBiZXRzIGFyZSBvZmYsIGFuZCB0aGVyZSBtYXkg YmUgb3RoZXIgcHJvYmxlbXMuLi4uDQoNCkFjdHVhbGx5LCB3ZSBoYWQgZXhlY3V0ZWQgcG93ZXIg b24vb2ZmIHRlc3QgcmVwZWF0ZWRseSB3aXRoIDEwIEFuZHJvaWQNCmRldmljZXMgZm9yIGEgbW9u dGguIEJ1dCwgZHVyaW5nIHRoZSB0ZXN0LCBqdXN0IHRoaXMgcHJvYmxlbSBvbmx5IGhhcHBlbmVk DQpyZXBlYXRlZGx5LCBldmVuIGlmIGl0IG9jY3VycmVkIHZlcnkgcmFyZWx5LiBTbyB3ZSBoYWQg Y29uY2x1ZGVkIHRoYXQgd2UNCmhhZCB0byBmaXggdGhpcyBwcm9ibGVtIGNlcnRhaW5seS4NCg0K SG93ZXZlciwgSSBjYW4gc2VlIHRoZSBwb2ludCBub3cuIEFuZHJvaWQgaGF2ZSBtaXN1c2VkIHRo ZSBlbWVyZ2VuY3kNCnJvLXJlbW91bnQgYW5kIHRoZSBmaWxlc3lzdGVtIGNyYXNoIGJ5IGVtZXJn ZW5jeSByby1yZW1vdW50IGlzIG5vdCBhbiBpc3N1ZS4NCkkgY2FuIHVuZGVyc3RhbmQgdGhlIHB1 cnBvc2Ugb2YgdGhlIGVtZXJnZW5jeSByby1yZW1vdW50Lg0KDQpJIGhlYXJkIHRoYXQgdGhlIG5l eHQgdmVyc2lvbiBvZiBBbmRyb2lkIHdpbGwgZG8gZnVsbCBzY2FuIG9mIGV4dDQgZmlsZXN5c3Rl bXMNCnVzaW5nIGUyZnNjayBldmVyeSBib290LXVwLCBzbyB0aGUgZXhpc3RpbmcgcHJvYmxlbSB3 aWxsIGJlIG5hdHVyYWxseSByZXNvbHZlZCwNCmV2ZW4gaWYgaXQgbWlnaHQgbm90IGJlIHRoZSBy aWdodCBzb2x1dGlvbi4NCg0KVGhhbmsgeW91IGZvciB5b3VyIHZhbHVhYmxlIGNvbW1lbnRzLg0K