On Tue, 2011-04-26 at 15:46 +0100, Mel Gorman wrote: > > I did find that only a few route-cache entries should be required. In > the original patches I worked with, there was a reservation for the > maximum possible number of route-cache entries. I thought this was > overkill and instead reserved 1-per-active-swapfile-backed-by-NFS. Right, so the thing I was worried about was a route-cache poison attack where someone would spam the machine such that it would create a lot of route cache entries and might flush the one we needed just as we needed it. Pinning the one entry we need would solve that (if possible). -- 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