Re: [PATCH v17 02/16] cgroup/misc: Add per resource callbacks for CSS events

[Huang, Kai]

On Fri, 2024-08-30 at 09:40 -0700, Haitao Huang wrote:
> From: Kristen Carlson Accardi <kristen@xxxxxxxxxxxxxxx>
> 
> The misc cgroup controller (subsystem) currently does not perform
> resource type specific action for Cgroups Subsystem State (CSS) events:
> the 'css_alloc' event when a cgroup is created and the 'css_free' event
> when a cgroup is destroyed.
> 
> Define callbacks for those events and allow resource providers to
> register the callbacks per resource type as needed. This will be
> utilized later by the EPC misc cgroup support implemented in the SGX
> driver.
> 
> The SGX callbacks will need to access the 'struct misc_cg'.  Pass
> 'struct misc_cg' to the callbacks but not the 'struct misc_res' because
> the latter doesn't have a pointer pointing back to 'struct misc_cg'.
> 
> Link: https://lore.kernel.org/lkml/op.2kdw36otwjvjmi@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
> 
> Signed-off-by: Kristen Carlson Accardi <kristen@xxxxxxxxxxxxxxx>
> Co-developed-by: Haitao Huang <haitao.huang@xxxxxxxxxxxxxxx>
> Signed-off-by: Haitao Huang <haitao.huang@xxxxxxxxxxxxxxx>
> Reviewed-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
> Reviewed-by: Tejun Heo <tj@xxxxxxxxxx>
> Tested-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
> ---
> 

Acked-by: Kai Huang <kai.huang@xxxxxxxxx>