On 05/11/2013 06:23 PM, Kirill A. Shutemov wrote: > From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx> > > mem_cgroup_cache_charge() has check for PageCompound(). The check > prevents charging huge cache pages. > > I don't see a reason why the check is present. Looks like it's just > legacy (introduced in 52d4b9a memcg: allocate all page_cgroup at boot). FWIW, that commit introduced two PageCompound() checks. The other one went away inexplicably in 01b1ae63c22. Acked-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>