linux-kernel - Re: [PATCH v11 03/14] cgroup/misc: Export APIs for SGX driver

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Date: Mon, 15 Apr 2024 13:45:04 +0000
From: "Huang, Kai" <kai.huang@...el.com>
To: "hpa@...or.com" <hpa@...or.com>, "tim.c.chen@...ux.intel.com"
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	<yangjie@...rosoft.com>, "Li, Zhiquan1" <zhiquan1.li@...el.com>,
	"chrisyan@...rosoft.com" <chrisyan@...rosoft.com>
Subject: Re: [PATCH v11 03/14] cgroup/misc: Export APIs for SGX driver

On Wed, 2024-04-10 at 11:25 -0700, Haitao Huang wrote:
> From: Kristen Carlson Accardi <kristen@...ux.intel.com>
> 
> The SGX EPC cgroup will reclaim EPC pages when usage in a cgroup reaches
> its or ancestor's limit. This requires a walk from the current cgroup up
> to the root similar to misc_cg_try_charge(). Export misc_cg_parent() to
> enable this walk.
> 
> The SGX driver also needs start a global level reclamation from the
> root. Export misc_cg_root() for the SGX driver to access.
> 
> Signed-off-by: Kristen Carlson Accardi <kristen@...ux.intel.com>
> Co-developed-by: Haitao Huang <haitao.huang@...ux.intel.com>
> Signed-off-by: Haitao Huang <haitao.huang@...ux.intel.com>
> Reviewed-by: Jarkko Sakkinen <jarkko@...nel.org>
> Reviewed-by: Tejun Heo <tj@...nel.org>
> 

Reviewed-by: Kai Huang <kai.huang@...el.com>