On Fri, Jan 29, 2016 at 06:19:33PM -0500, Johannes Weiner wrote: > There are several users that nest lock_page_memcg() inside lock_page() > to prevent page->mem_cgroup from changing. But the page lock prevents > pages from moving between cgroups, so that is unnecessary overhead. > > Remove lock_page_memcg() in contexts with locked contexts and fix the > debug code in the page stat functions to be okay with the page lock. > > Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx> Acked-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx> -- 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>