Re: [PATCHv7 1/3] rdmacg: Added rdma cgroup controller

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On 28/02/2016 16:13, Parav Pandit wrote:
> Added rdma cgroup controller that does accounting, limit enforcement
> on rdma/IB verbs and hw resources.
> 
> Added rdma cgroup header file which defines its APIs to perform
> charing/uncharing functionality and device registration which will
> participate in controller functions of accounting and limit
> enforcements. It also define rdmacg_device structure to bind IB stack
> and RDMA cgroup controller.
> 
> RDMA resources are tracked using resource pool. Resource pool is per
> device, per cgroup entity which allows setting up accounting limits
> on per device basis.
> 
> Resources are not defined by the RDMA cgroup, instead they are defined
> by the external module IB stack. This allows extending IB stack
> without changing kernel, as IB stack is going through changes
> and enhancements.
> 
> Resource pool is created/destroyed dynamically whenever
> charging/uncharging occurs respectively and whenever user
> configuration is done. Its a tradeoff of memory vs little more code
> space that creates resource pool whenever necessary,
> instead of creating them during cgroup creation and device registration
> time.
> 
> Signed-off-by: Parav Pandit <pandit.parav@xxxxxxxxx>

Reviewed-by: Haggai Eran <haggaie@xxxxxxxxxxxx>

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