Re: [HELP] How to get task_struct from mm

[Yang Shi]

On 5/30/19 2:57 PM, Yang Shi wrote:
> Hi folks,
>
>
> As what we discussed about page demotion for PMEM at LSF/MM, the 
> demotion should respect to the mempolicy and allowed mems of the 
> process which the page (anonymous page only for now) belongs to.
>
>
> The vma that the page is mapped to can be retrieved from rmap walk 
> easily, but we need know the task_struct that the vma belongs to. It 
> looks there is not such API, and container_of seems not work with 
> pointer member.
>
>
> Any suggestion?

mm->owner is defined for CONFIG_MEMCG only, I'm wondering whether we can 
extend this to !CONFIG_MEMCG case or not?

> Thanks,
>
> Yang