From: Daeho Jeong Subject: Re: Question about ext4_free_blocks() Behavior for Per-File Data Journaling Mode Date: Tue, 08 Dec 2015 07:02:20 +0000 (GMT) Message-ID: <2137019115.413281449558139670.JavaMail.weblogic@epmlwas04b> Reply-To: daeho.jeong@samsung.com Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: base64 Cc: Daeho Jeong , "linux-ext4@vger.kernel.org" To: "tytso@mit.edu" , jack@suse.cz Return-path: Received: from mailout3.samsung.com ([203.254.224.33]:37575 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932744AbbLHHCX (ORCPT ); Tue, 8 Dec 2015 02:02:23 -0500 Received: from epcpsbgr1.samsung.com (u141.gpu120.samsung.co.kr [203.254.230.141]) by mailout3.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0NZ101JLN27WGW30@mailout3.samsung.com> for linux-ext4@vger.kernel.org; Tue, 08 Dec 2015 16:02:20 +0900 (KST) MIME-version: 1.0 Sender: linux-ext4-owner@vger.kernel.org List-ID: PiBIaS4gSSBoYXZlIGEgcXVlc3Rpb24gYWJvdXQgZXh0NF9mcmVlX2Jsb2NrcygpIGJlaGF2aW9y IGZvciBwZXItZmlsZSBkYXRhIGpvdXJuYWxpbmcNCj4gbW9kZS4gQUZBSVVJLCBpbiBleHQ0X2Zy ZWVfYmxvY2tzKCksIGl0IGRvZXNuJ3QgaW52b2tlIGV4dDRfZm9yZ2V0KCkgZnVuY3Rpb24gZm9y DQo+IGRhdGEgYmxvY2tzIG9mIGEgcGVyLWZpbGUgZGF0YSBqb3VybmFsaW5nIGVuYWJsZWQgZmls ZSwgYmVjYXVzZSBhbGwgdGhlIGRhdGEgYmxvY2tzDQo+IG9mIHRoZSBmaWxlIGFyZSBub3QgbGlu a2VkIHRvIHRoZSBibG9jayBkZXZpY2UncyBhZGRyZXNzIHNwYWNlIG9mIHRoZSBmaWxlLCBidXQg dGhlDQo+IGFkZHJlc3Mgc3BhY2Ugb2YgdGhlIGlub2RlIG9mIHRoZSBmaWxlLCBzbyBhbnkgZGF0 YSBibG9ja3Mgb2YgdGhlIGZpbGUgY2Fubm90IGJlDQo+IGZvdW5kIGJ5IHNiX2ZpbmRfZ2V0X2Js b2NrKCkgZnVuY3Rpb24uIEl0IHNlZW1zIGEgYnVnLCBidXQgSSBhbSBub3Qgc3VyZS4NCj4gSXMg dGhpcyBhIHByb2JsZW0/DQoNCkkganVzdCBhbnN3ZXIgbXkgb3duIHF1ZXN0aW9uLiBJdCB3YXMg YSBzaWxseSBxdWVzdGlvbiwgYmVjYXVzZSBhbGwgdGhlIGRhdGEgYnVmZmVycw0Kb2YgcGVyLWZp bGUgZGF0YSBqb3VybmFsbGVkIGZpbGUgYXJlIGZvcmdvdHRlbiBieSBqYmQyX2pvdXJuYWxfaW52 YWxpZGF0ZXBhZ2UoKSBpbiBhZHZhbmNlDQpvZiBpbnZva2luZyBleHQ0X2ZyZWVfYmxvY2tzKCku DQoNCkFueXdheSwgdGhlIHJldm9rZSBvcGVyYXRpb24gdG8gdGhlIGRhdGEgYmxvY2tzIGlzIHN0 aWxsIG1pc3NpbmcgaW4gZXh0NF9mcmVlX2Jsb2NrcygpLg0KSSB3aWxsIGZpeCB0aGlzIHByb2Js ZW0uIDotKQ0K