Re: [PATCH v11 2/9] hugetlb_cgroup: add interface for charge/uncharge hugetlb reservations

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On 2/3/20 3:22 PM, Mina Almasry wrote:
> Augments hugetlb_cgroup_charge_cgroup to be able to charge hugetlb
> usage or hugetlb reservation counter.
> 
> Adds a new interface to uncharge a hugetlb_cgroup counter via
> hugetlb_cgroup_uncharge_counter.
> 
> Integrates the counter with hugetlb_cgroup, via hugetlb_cgroup_init,
> hugetlb_cgroup_have_usage, and hugetlb_cgroup_css_offline.
> 
> Signed-off-by: Mina Almasry <almasrymina@xxxxxxxxxx>
> Acked-by: Mike Kravetz <mike.kravetz@xxxxxxxxxx>
> Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
> 
> ---
> 
> Changes in v11:
> - Changed all 'reserved' or 'reservation' to 'rsvd' to reflect the user
> interface.

Thanks.

Small nit,

> @@ -450,8 +496,7 @@ static ssize_t hugetlb_cgroup_reset(struct kernfs_open_file *of,
>  	struct hugetlb_cgroup *h_cg = hugetlb_cgroup_from_css(of_css(of));
> 
>  	counter = &h_cg->hugepage[MEMFILE_IDX(of_cft(of)->private)];
> -	rsvd_counter =
> -		&h_cg->rsvd_hugepage[MEMFILE_IDX(of_cft(of)->private)];
> +	rsvd_counter = &h_cg->rsvd_hugepage[MEMFILE_IDX(of_cft(of)->private)];
> 

That looks like a change just to reformat a line added in the first patch?

>  	switch (MEMFILE_ATTR(of_cft(of)->private)) {
>  	case RES_MAX_USAGE:

-- 
Mike Kravetz



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