On Tue, 2011-04-12 at 17:58 +0200, Michal Nazarewicz wrote: > > Actually, the various mem_map[]s _are_ arrays, at least up to > > MAX_ORDER_NR_PAGES at a time. We can use that property here. > > In that case, waiting eagerly for the new patch. :) I misunderstood earlier. release_pages() takes an array of 'struct page *', not an array of 'struct page'. To use it here, we'd need to construct temporary arrays. If we're going to do that, we should probably just use pagevecs, and if we're going to do _that_, we don't need release_pages(). Nobody calls free_pages_exact() in any kind of hot path these days. Most of the users are like kernel profiling where they *never* free the memory. I'm not sure it's worth the complexity to optimize this. -- Dave -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>