Hello, Glauber.

On Wed, Nov 14, 2012 at 05:17:51PM +0100, Glauber Costa wrote:
> Why can't we reuse the scheduler iterator and move it to kernel/cgroup.c
> ? It already exists, provide sane ordering, and only relies on parent
> information - which cgroup core already have - to do the walk.

Hmmm... we can but I personally much prefer for_each_*() iterators
over callback based ones.  It's just much easier to share states
across an iteration and follow the logic.  walk_tg_tree_from() does
have the benefit of being able to combine pre and post visits in the
same walk, which doesn't seem to have any user at the moment.

Thanks.

-- 
tejun
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