Re: [PATCH 0/2] CGroups: cgroup member list enhancement/fix

[Balbir Singh]

* menage@xxxxxxxxxx <menage@xxxxxxxxxx> [2009-07-02 16:26:15]:

> The following series (written by Ben Blum) adds a "cgroup.procs" file
> to each cgroup that reports unique tgids rather than pids, and fixes a
> pid namespace bug in the existing "tasks" file that could cause
> readers in different namespaces to interfere with one another.
> 
> The patches as a pair provide similar functionality to Li Zefan's
> patch posted yesterday, with the addition on the "cgroup.procs" file;
> if it's decided that Li's patch needs to be fast-tracked to 2.6.31,
> then these patches can be rebased as a small extension of Li's patch;
> if Li'z patch doesn't need to go to 2.6.31 then it makes more sense to
> take this pair since they provide more overall functionality.
>

Paul, I don't see an interface to migrate all procs or at-least I
can't read it in the changelog. As discussed in the containers
mini-summit in 2008, it would be a nice thing to have (I've not looked
at the implementation yet).
 
> ---
> 
> Ben Blum (2):
>       Adds a read-only "procs" file similar to "tasks" that shows only unique tgids
>       Ensures correct concurrent opening/reading of pidlists across pid namespaces
> 
> 
>  include/linux/cgroup.h |   46 +++++-
>  kernel/cgroup.c        |  355 +++++++++++++++++++++++++++++++++---------------
>  2 files changed, 285 insertions(+), 116 deletions(-)
> 
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-- 
	Balbir
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