From: Daeho Jeong Subject: Re: [PATCH] ext4: guarantee already started handles to successfully finish while ro remounting Date: Fri, 06 May 2016 06:01:12 +0000 (GMT) Message-ID: <593570881.453531462514471895.JavaMail.weblogic@ep2mlwas08c> 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=9D=B4=EA=B8=B0=ED=83=9C?= To: Theodore Ts'o Return-path: Received: from mailout1.samsung.com ([203.254.224.24]:52488 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751053AbcEFGBQ (ORCPT ); Fri, 6 May 2016 02:01:16 -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 <0O6Q023Z9RE1Z2C0@mailout1.samsung.com> for linux-ext4@vger.kernel.org; Fri, 06 May 2016 15:01:13 +0900 (KST) MIME-version: 1.0 Sender: linux-ext4-owner@vger.kernel.org List-ID: PiBIbW0sIEknbSBub3QgcmVhbGx5IGNvbWZvcnRhYmxlIHdpdGggcHV0dGluZyB0aGlzIGhhY2sg aW4sIHNpbmNlIHRoaXMNCj4gaXMgcGFwZXJpbmcgb3ZlciB0aGUgcmVhbCBwcm9ibGVtLCB3aGlj aCBpcyB0aGF0IEFuZHJvaWQgaXMgdHJ5aW5nIHRvDQo+IHVzZSB0aGUgZW1lcmdlbmN5IHJlbW91 bnQgcmVhZC1vbmx5IHN5c3JxIG9wdGlvbiBhbmQgdGhpcyBpcw0KPiBmdW5kYW1lbnRhbGx5IHVu c2FmZS4gIEknbSBub3Qgc3VyZSB3aGF0IGVsc2UgY291bGQgYnJlYWsgaWYgaXQgaXMNCj4gc2l0 dWF0aW9uIG5vcm1hbCB0aGF0IHRoZXJlIGlzIGFjdGl2ZSBwcm9jZXNzZXMgYnVzaWx5IHdyaXRp bmcgdG8gdGhlDQo+IGZpbGUgc3lzdGVtIGFuZCBzeXNycS11IGZvbGxvd2VkIGJ5IHJlYm9vdCBp cyB0aGUgbm9ybWFsIHdheSB0aGUNCj4gQW5kcm9pZCBrZXJuZWwgZG9lcyBhIHJlYm9vdC4NCg0K PiBBIG11Y2ggYmV0dGVyIHNvbHV0aW9uIHdvdWxkIGJlIHRvIGNoYW5nZSB0aGUgQW5kcm9pZCB1 c2Vyc3BhY2UgdG8NCj4gY2FsbCB0aGUgRklGUkVFWkUgaW9jdGwgb24gZWFjaCBtb3VudGVkIGZp bGUgc3lzdGVtLCBhbmQgdGhlbiBjYWxsIGZvcg0KPiBhIHJlYm9vdC4NCg0KSSBhZ3JlZSB3aXRo IHlvdS4gSSBrbm93IHRoYXQgY3VycmVudCBBbmRyb2lkIHNodXRkb3duIHByb2NlZHVyZSBpcw0K bm90IGEgc2FmZSB3YXkuIEJ1dCwgd2l0aG91dCB0aGlzIHBhdGNoLCAiZXZlbiBub3QgaW4gQW5k cm9pZCBzeXN0ZW0iLA0Kd2hlbiB3ZSB0cmlnZ2VyIHRoZSBlbWVyZ2VuY3kgcmVhZC1vbmx5IHJl bW91bnQgd2hpbGUgZXZpY3RpbmcgaW5vZGVzLA0KaV9zaXplIG9mIHRoZSBpbm9kZSBiZWNvbWVz IHplcm8gYW5kIHRoZSBpbm9kZSBpcyBub3QgaW4gb3JwaGFuIGxpc3QsDQpidXQgYmxvY2tzIG9m IHRoZSBpbm9kZSBhcmUgc3RpbGwgYWxsb2NhdGVkIHRvIHRoZSBpbm9kZSwgYmVjYXVzZQ0KZXh0 NF90cnVuY2F0ZSgpIHdpbGwgZmFpbCB3aGlsZSBzdGF0aW5nIHRoZSBoYW5kbGUgd2hpY2ggd2Fz IGFscmVhZHkgc3RhcnRlZA0KYnkgZXh0NF9ldmljdF9pbm9kZSgpLiBUaGlzIGNhdXNlcyB0aGUg ZmlsZXN5c3RlbSBpbmNvbnNpc3RlbmN5IGFuZA0Kd2Ugd2lsbCBlbmNvdW50ZXIgYW4gZXh0NCBr ZXJuZWwgcGFuaWMgaW4gdGhlIG5leHQgYm9vdCBieSB0aGlzIHByb2JsZW0uDQoNCkkgdGhpbmsg dGhhdCB0aGlzIGtpbmQgb2YgZmlsZXN5c3RlbSBjcmFzaCBjYW4gb2NjdXIgYW55d2hlcmUgdGhh dA0KdGhlIHNhbWUgam91cm5hbCBoYW5kbGUgaXMgcmVwZWF0bHkgdXNlZC4gRHVyaW5nIGFuIGF0 b21pYyBmaWxlc3lzdGVtDQpvcGVyYXRpb24sIGEgcGFydCBvZiB0aGUgb3BlcmF0aW9uIHdpbGwg c3VjY2VlZCBhbmQgdGhlIG90aGVyIG9uZSB3aWxsIGZhaWwuDQo=