[PATCH 0/3] block: make loop block device cgroup aware

From	Shaohua Li <shli@kernel.org>
Newsgroups	linux.kernel
Subject	[PATCH 0/3] block: make loop block device cgroup aware
Date	2017-09-07 04:10 +0200
Message-ID	<umUqt-1Kg-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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From: Shaohua Li <shli@fb.com>

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

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[PATCH 0/3] block: make loop block device cgroup aware Shaohua Li <shli@kernel.org> - 2017-09-07 04:10 +0200
  [PATCH 3/3] block/loop: make loop cgroup aware Shaohua Li <shli@kernel.org> - 2017-09-07 04:10 +0200
    Re: [PATCH 3/3] block/loop: make loop cgroup aware Tejun Heo <tj@kernel.org> - 2017-09-08 16:50 +0200
      Re: [PATCH 3/3] block/loop: make loop cgroup aware Shaohua Li <shli@kernel.org> - 2017-09-08 19:10 +0200
        Re: [PATCH 3/3] block/loop: make loop cgroup aware Tejun Heo <tj@kernel.org> - 2017-09-08 20:00 +0200

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