Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753190AbdIGCBR (ORCPT ); Wed, 6 Sep 2017 22:01:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:37502 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752063AbdIGCBP (ORCPT ); Wed, 6 Sep 2017 22:01:15 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 52A1621A92 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=fail smtp.mailfrom=shli@fb.com From: Shaohua Li To: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org Cc: tj@kernel.org, lizefan@huawei.com, tglx@linutronix.de, kernel-team@fb.com, axboe@kernel.dk, Shaohua Li Subject: [PATCH 0/3] block: make loop block device cgroup aware Date: Wed, 6 Sep 2017 19:00:50 -0700 Message-Id: X-Mailer: git-send-email 2.11.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 967 Lines: 29 From: Shaohua Li Hi, The IO dispatched to under layer disk by loop block device isn't cloned from original bio, so the IO loses cgroup information of original bio. These IO escapes from cgroup control. The patches try to address this issue. The idea is quite generic, but we currently only make it work for blkcg. Thanks, Shaohua Shaohua Li (3): kthread: add a mechanism to store cgroup info block: make blkcg aware of kthread stored original cgroup info block/loop: make loop cgroup aware block/bio.c | 31 ------------------------- drivers/block/loop.c | 13 +++++++++++ drivers/block/loop.h | 1 + include/linux/bio.h | 2 -- include/linux/blk-cgroup.h | 25 ++++++-------------- include/linux/kthread.h | 13 +++++++++++ include/linux/sched.h | 1 + kernel/kthread.c | 57 +++++++++++++++++++++++++++++++++++++++++++++- 8 files changed, 91 insertions(+), 52 deletions(-) -- 2.9.5