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SubjectRe: [PATCH v8 2/3] mm: add a field to store names for private anonymous memory
On Fri 27-08-21 12:18:57, Suren Baghdasaryan wrote:
[...]
> +static void replace_vma_anon_name(struct vm_area_struct *vma, const char *name)
> +{
> + if (!name) {
> + free_vma_anon_name(vma);
> + return;
> + }
> +
> + if (vma->anon_name) {
> + /* Should never happen, to dup use dup_vma_anon_name() */
> + WARN_ON(vma->anon_name == name);

What is the point of this warning?

> +
> + /* Same name, nothing to do here */
> + if (!strcmp(name, vma->anon_name))
> + return;
> +
> + free_vma_anon_name(vma);
> + }
> + vma->anon_name = kstrdup(name, GFP_KERNEL);
> +}
--
Michal Hocko
SUSE Labs

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