On Wed 27-03-13 17:29:19, Naoya Horiguchi wrote: > On Wed, Mar 27, 2013 at 03:19:21PM +0100, Michal Hocko wrote: [...] > > If we made sure that all page on the hugepage_freelists have reference > > 0 (which is now not the case and it is yet another source of confusion) > > then the whole loop could be replaced by page_count check. > > I think that free hugepages have refcount 0,
You are right. For some reason I totally missed that we drop the reference from page allocator (put_page_testzero in gather_surplus_pages). Sorry about the stupit question. -- Michal Hocko SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
