block: make loop block device cgroup aware
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- v3 Latest4 patches 3 repliesIn review
- v24 patches 6 repliesSuperseded
- v13 patches 8 repliesSuperseded
Changes in v3 from the cover letter
- Make the API more robust pointed out by Tejun
Patches in v3 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/4 | kthread: add a mechanism to store cgroup infoinclude/ kernel/ | +75 | 1 reply | |
| 2/4 | blkcg: delete unused APIsblock/ include/ include/ | +0 | 0 replies | |
| 3/4 | block: make blkcg aware of kthread stored original cgroup infoinclude/ | +7 | 0 replies | |
| 4/4 | block/loop: make loop cgroup awaredrivers/ drivers/ | +14 | 0 replies |
Reviews trailers per patch
All 4 patches have a Reviewed-by or Acked-by.
| Patch | Tejun Heo |
|---|---|
| 1/4 | A-b |
| 2/4 | A-b |
| 3/4 | A-b |
| 4/4 | A-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH V3 0/4] block: make loop block device cgroup aware
From: Shaohua Li <[email protected]>
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
V2->V3:
- Make the API more robust pointed out by Tejun
V1->V2:
- Address a couple of issues pointed out by Tejun
Shaohua Li (4):
kthread: add a mechanism to store cgroup info
blkcg: delete unused APIs
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 | 11 ++++++++ kernel/kthread.c | 66 ++++++++++++++++++++++++++++++++++++++++++++-- 7 files changed, 96 insertions(+), 53 deletions(-)
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