introduce bio-cgroup into io-throttle
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Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/7 | porting bio-cgroup to 2.6.28-rc2-mm1block/ fs/ fs/ +16 more | +452 | 0 replies | |
| 2/7 | Porting io-throttle v11 to 2.6.28-rc2-mm1Documentation/ block/ block/ +15 more | +1474 | 0 replies | |
| 3/7 | Introduction for new featureDocumentation/ | +28 | 0 replies | |
| 4/7 | enables bio-cgroup in io-throttle, have to mount togetherblock/ include/ include/ +3 more | +43 | 0 replies | |
| 5/7 | announce tasks moving in bio-cgroupinclude/ mm/ | +41 | 0 replies | |
| 6/7 | support checking of subsystem dependenciesDocumentation/ include/ kernel/ | +27 | 0 replies | |
| 7/7 | let io-throttle support using bio-cgroup idblock/ block/ include/ +2 more | +339 | 0 replies |
Reviews trailers per patch
None of the 7 patches has a Reviewed-by or Acked-by.
| Patch | Gui Jianfeng |
|---|---|
| Series | Signed-of-by Signed-of-by Signed-of-by |
| 1/7 | |
| 2/7 | |
| 3/7 | |
| 4/7 | Signed-of-by |
| 5/7 | Signed-of-by |
| 6/7 | |
| 7/7 | Signed-of-by |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH 0/7] introduce bio-cgroup into io-throttle
Hi all,
For the moment, io-throttle can trace buffered-io by means of memcg. This
patchset introduces bio-cgroup into io-throttle, and splits it from memcg.
For the current implemetation, there are two ways can be used to trace
buffered-io. The first is mount io-throttle and bio-cgroup together.
This is a aggressive way, because there might have some troubles if other
subsystem also want to use bio-cgroup.
The other way is more gentle, io-throttle can use the bio-cgroup id to
associate with a given bio-cgroup. If an association is created, synchronization
between two groups will be performed automatically. This means if one task
adds into or removes from an associated bio-cgroup group, the corresponding
io-throttle group will also add or remove this task.
If one io-throttle associates with a bio-cgroup group, tasks moving in this
io-throttle group is forbidden.
A new io-throttle file blockio.bio_id is added. This file is used to create or remove an association. blockio.bio_id accessing in root hierarchy is not allowed. Following command
is valid.
$echo 1 > /mnt/throttle/group1/blockio.bio_id (associate this io-throttle group with bio-cgroup 1) $echo -1 > /mnt/throttle/group1/blockio.bio_id (remove association between this io-throttle group and bio-cgroup 1)
One bio-cgroup group can't be associated twice. If you do so, error message will show. If io-throttle has been mounted with bio-cgroup, all blockio.bio_id related actions are of no effect.
Dependency checking callback is introduced into cgroup.
You can't mount io-throttle with other subsystems except bio-cgroup. Beacuse other subsystem might break the association between io-throttle and bio-cgroup.
This patchset is against 2.6.28-rc2-mm1.
Signature · 2 lines
Regards Gui Jianfeng