On Mon, Nov 15, 2010 at 08:04:23AM -0600, Christoph Lameter wrote: > On Mon, 15 Nov 2010, Mel Gorman wrote: > > > With recent per-cpu allocator changes, are we guaranteed that the per-cpu > > structures exist and are valid? > > We always guarantee that all per cpu areas for all possible cpus exist. > That has always been the case. There was a discussion about changing > that though. Could be difficult given the need for additional locking. > In that case, I do not have any more concerns about the patch. It's unfortunate that more per-cpu structures will have to be updated but I doubt it'll be noticable. -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab -- 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 policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>