On Thu, Jun 9, 2022 at 10:27 AM Roman Gushchin roman.gushchin@linux.dev wrote:
[...]
+struct mem_cgroup *mem_cgroup_from_obj(void *p) +{
struct folio *folio;
if (mem_cgroup_disabled())
return NULL;
if (unlikely(is_vmalloc_addr(p)))
folio = page_folio(vmalloc_to_page(p));
Do we need to check for NULL from vmalloc_to_page(p)?
else
folio = virt_to_folio(p);
return mem_cgroup_from_obj_folio(folio, p);
+}