[PATCHSET] cgroup: implement task_cgroup_path_from_hierarchy()
tj at kernel.org
Mon Apr 15 03:22:33 UTC 2013
On Sun, Apr 14, 2013 at 11:36:55AM -0700, Tejun Heo wrote:
> kdbus folks want a sane way to determine the cgroup path that a given
> task belongs to on a given hierarchy, which is a reasonble thing to
> expect from cgroup core.
> This patchset make hierarchy_id allocation use idr instead of ida and
> implement task_cgroup_path_from_hierarchy(). In the process, the
> yucky ida cyclic allocation is replaced with idr_alloc_cyclic().
> 0001-0002 prepare for conversion to idr, which 0003 does.
> 0004 implements the new function.
> This patchset is on top of next-20130412 as idr_alloc_cyclic() patch
> is currently in -mm. Given that this isn't an urgent thing and the
> merge window is just around the corner, it'd be probably best to route
> these through cgroup/for-3.11 once v3.10-rc1 drops.
> These patches are also available in the following git branch.
> git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-task_cgroup_path_from_hierarchy
> And it actually reduces LOC. Woot Woot.
> include/linux/cgroup.h | 2
> kernel/cgroup.c | 128 +++++++++++++++++++++++++++++++++----------------
> 2 files changed, 89 insertions(+), 41 deletions(-)
Heh, I must have been tripping or something. 89 > 41. It's still a
lot cleaner tho. :)
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